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(Gawker)   Experts say that the best advice for people who fall onto subway tracks is to run to the end of platform, also make sure to smile big   (gawker.com) divider line 129
    More: Followup, train operator  
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8426 clicks; posted to Main » on 05 Dec 2012 at 10:30 AM (2 years ago)   |  Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»



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2012-12-05 10:31:47 AM  
Subby is going to hell for that.

/I'm going with for snickering
 
2012-12-05 10:33:21 AM  
wiki.teamfortress.com
 
2012-12-05 10:35:07 AM  
All right, big smiles everyone. On the count of three say "ChooChoo!"
 
2012-12-05 10:36:39 AM  
Train platforms in Japan are built with recesses underneath the platforms that you can get in if you fall or get pushed onto the tracks.
 
2012-12-05 10:36:51 AM  
HE RAN THE WONG WAY!!!
/Well he was Chinese.
 
2012-12-05 10:37:21 AM  
Surviving the Subway
A Training Manual
 
2012-12-05 10:38:21 AM  
A final option is to simply lie flat - there may be enough clearance for the train to pass over you.


Great...
 
2012-12-05 10:38:51 AM  

kumanoki: Train platforms in Japan are built with recesses underneath the platforms that you can get in if you fall or get pushed onto the tracks.


You'd think that would be standard everywhere. That said if no train is coming, you might as well go for the oh shiat ladder opposite the end to where the train arrives.

/also as I said in the other thread, a couple cheap cameras scanning the track and doing automatic obstruction detection would also work
//the falling person should be easy to capture via edge detection and then just start tripping red signals or autobraking the trains
 
2012-12-05 10:39:15 AM  
Wouldn't the best advice be to get under the platform? Most platforms that I have seen are just that... There is about 4 feet of open space beneath them.
 
2012-12-05 10:39:18 AM  

cgraves67: All right, big smiles everyone. On the count of three say "ChooChoo!"


24.media.tumblr.com
 
2012-12-05 10:39:19 AM  
If the platform appears flush with the approaching train, you could take shelter in the space between the two sets of train tracks. This is a dangerous choice, though, because you'd have to traverse the third rail, which carries 660 volts of electricity, more than enough to kill a person. A final option is to simply lie flat - there may be enough clearance for the train to pass over you.

If 660 volts is enough to kill a person what the fark are cops doing with 1000000 volt tasters
 
2012-12-05 10:39:22 AM  
The trains only go about 45 mph, right? If you run away, and the train slows to 30, 20 or 10 before it hits you, there has to be a point where you can jump and cling to the front without falling under the wheels. Someone call MythBusters.
 
2012-12-05 10:40:57 AM  

Jon iz teh kewl: If 660 volts is enough to kill a person what the fark are cops doing with 1000000 volt tasters


You don't seem that current on basic E&M physics.
 
2012-12-05 10:41:43 AM  

kumanoki: Train platforms in Japan are built with recesses underneath the platforms that you can get in if you fall or get pushed onto the tracks.



www.thepanamadigest.com

Which is good, because those Japanese can be pushy.
 
TWX
2012-12-05 10:42:29 AM  

Jon iz teh kewl: If the platform appears flush with the approaching train, you could take shelter in the space between the two sets of train tracks. This is a dangerous choice, though, because you'd have to traverse the third rail, which carries 660 volts of electricity, more than enough to kill a person. A final option is to simply lie flat - there may be enough clearance for the train to pass over you.

If 660 volts is enough to kill a person what the fark are cops doing with 1000000 volt tasters


It's the total energy that kills you, not the volts. Voltage just happens to be a bigger number than amps, which is more impressive. If they wanted to convert everything into Watts that'd be a much, much bigger number.

/watts = volts x amps
 
2012-12-05 10:43:55 AM  
Yep, there should be a space under the platform to hide, that is unless someone should unfortuately stumble right when the train is approaching.
 
2012-12-05 10:43:59 AM  

Lumpmoose: The trains only go about 45 mph, right? If you run away, and the train slows to 30, 20 or 10 before it hits you, there has to be a point where you can jump and cling to the front without falling under the wheels. Someone call MythBusters.


A reasonably estimate is that a person can sprint 10-15 MPH. I wouldn't place the chances of survival very high, however, with a speed difference of over 10 MPH. You'd also lose a lot of speed jumping and turning around to grab on to the train (otherwise you'd just bounce off and get run over).
 
2012-12-05 10:44:48 AM  

Lumpmoose: The trains only go about 45 mph, right? If you run away, and the train slows to 30, 20 or 10 before it hits you, there has to be a point where you can jump and cling to the front without falling under the wheels. Someone call MythBusters.


I was thinking of this EXACT thing while waiting for my train this morning. Because I would assume that, as a train slows down at a station, it isn't the impact that kills you, but being run over/crushed that does it.

I am not a scientist, however.
 
2012-12-05 10:45:15 AM  

Jon iz teh kewl: If the platform appears flush with the approaching train, you could take shelter in the space between the two sets of train tracks. This is a dangerous choice, though, because you'd have to traverse the third rail, which carries 660 volts of electricity, more than enough to kill a person. A final option is to simply lie flat - there may be enough clearance for the train to pass over you.

If 660 volts is enough to kill a person what the fark are cops doing with 1000000 volt tasters


Volts -vs- Amps. How does it work?
 
2012-12-05 10:45:38 AM  
I was on the platform waiting for the same train as this guy. You can be sure that he wasn't smiling.

He was fighting for his life, probably thinking about his little daughter or son waiting by the door for him to get home that evening. Or how he'd been working really hard lately, dedicating himself to his recovery, and how it was all starting to pay off. Or what his wife would like for Christmas.

Looking into his face was like looking through a rip in the very fabric of reality. Underneath our thoughts and emotions is the primal energy that flees insecurity and death with every ounce of its power. I haven't been able to get the spiralling look in his eyes, like hypnotic circles, out of my mind.

I really wish that I could've grabbed him and pulled him up, but it all just looked so surreal in the viewfinder of my iPhone.
 
2012-12-05 10:46:16 AM  
Just don't run to the wrong end. That ges a tad messy.
 
2012-12-05 10:46:25 AM  
Volts do not kill. Amps are the killers.
 
2012-12-05 10:46:56 AM  

Jon iz teh kewl: If the platform appears flush with the approaching train, you could take shelter in the space between the two sets of train tracks. This is a dangerous choice, though, because you'd have to traverse the third rail, which carries 660 volts of electricity, more than enough to kill a person. A final option is to simply lie flat - there may be enough clearance for the train to pass over you.

If 660 volts is enough to kill a person what the fark are cops doing with 1000000 volt tasters


It's not the volts, it's the amps that kill. 660 volts with a shiatload of amps to power the onboard motors will turn you into KFC pretty quickly. 50,000V at .5 amps or whatever is enough to start involuntary muscle spasms and generally piss you off, but not (usually, there are exceptions and everyone's physiology is different) enough to kill you.
 
2012-12-05 10:47:54 AM  
Ok, so, why haven't they designed lower profile subway trains that don't require such high platforms.

Too much retrofitting to decades old subway stations?
 
2012-12-05 10:48:39 AM  
Epic comment from below the article:

"Another way to prepare is to build up your body's resistance to electricity, so you do not have to worry about the third rail. It is kind of like a building up a tolerance for poison by ingesting a little bit at a time. I started years ago shocking myself with small amounts of electricity and then just building up the amps and voltage. This is often what murderers did in the old days, in order to avoid death by the electric chair.

You build up a tolerance quite quickly. Another ancillary benefit is that it seems to have a natural calming effect on the nerves. I suspect I could probably tolerate the third rail, now. Fortunately, I live in a city without a subway, so I don't have to worry about it. But if I go to the big city, I know I will be prepared. "
 
2012-12-05 10:49:09 AM  
Guys, I've been doing some digging, and I found live video of this poor man's death. I warn you, it's NSFW and totally graphic, he literally gets gibbed by the train.

Graphic Train Station Security Footage
 
2012-12-05 10:49:14 AM  

Lumpmoose


The trains only go about 45 mph, right? If you run away, and the train slows to 30, 20 or 10 before it hits you, there has to be a point where you can jump and cling to the front without falling under the wheels. Someone call MythBusters.


If you were to fall and hit the ground at 30, 20, or 10mph you would at least get the wind knocked out of you. Now imagine trying to find a handhold and maintain a grip on the front of a train at that precise moment.

Maybe the train needs to have a large easy chair mounted to the front at track level so people can just stand there and be picked up in a sitting position. (of course they would have to be facing away from the train at the time)
 
2012-12-05 10:49:25 AM  
The key is to stand firm, and confront the train.
If you don't stand up for yourself, the train will never respect you.
 
2012-12-05 10:49:47 AM  

Lava_Backflips: Volts do not kill. Amps are the killers.


Guns don't kill people, trains kill people.
 
2012-12-05 10:49:50 AM  

Comic Book Guy: Jon iz teh kewl: If the platform appears flush with the approaching train, you could take shelter in the space between the two sets of train tracks. This is a dangerous choice, though, because you'd have to traverse the third rail, which carries 660 volts of electricity, more than enough to kill a person. A final option is to simply lie flat - there may be enough clearance for the train to pass over you.

If 660 volts is enough to kill a person what the fark are cops doing with 1000000 volt tasters

It's not the volts, it's the amps that kill. 660 volts with a shiatload of amps to power the onboard motors will turn you into KFC pretty quickly. 50,000V at .5 amps or whatever is enough to start involuntary muscle spasms and generally piss you off, but not (usually, there are exceptions and everyone's physiology is different) enough to kill you.


.5 is above 500 milliamps. Way above the threshold to kill you. It hurts at .01
 
2012-12-05 10:50:45 AM  
Wile E. Coyote would like a word...
 
2012-12-05 10:50:58 AM  

Lava_Backflips: Volts do not kill. Amps are the killers.


ohm y god
 
2012-12-05 10:51:07 AM  

BronyMedic: Guys, I've been doing some digging, and I found live video of this poor man's death. I warn you, it's NSFW and totally graphic, he literally gets gibbed by the train.

Graphic Train Station Security Footage



I'll take your word for it.
 
2012-12-05 10:51:10 AM  

ChipNASA: HE RAN THE WONG WAY!!!
/Well he was Chinese.


by his name I would say he was probably Korean. Either sad that he was murdered by the thug.
 
2012-12-05 10:51:24 AM  

Comic Book Guy: Jon iz teh kewl: If the platform appears flush with the approaching train, you could take shelter in the space between the two sets of train tracks. This is a dangerous choice, though, because you'd have to traverse the third rail, which carries 660 volts of electricity, more than enough to kill a person. A final option is to simply lie flat - there may be enough clearance for the train to pass over you.

If 660 volts is enough to kill a person what the fark are cops doing with 1000000 volt tasters

It's not the volts, it's the amps that kill. 660 volts with a shiatload of amps to power the onboard motors will turn you into KFC pretty quickly. 50,000V at .5 amps or whatever is enough to start involuntary muscle spasms and generally piss you off, but not (usually, there are exceptions and everyone's physiology is different) enough to kill you.


i'm perfectly aware it's the "mills that kill". the problem is what does that have to do with electricity?? wind energy??

www.manhattancvb.org
 
2012-12-05 10:52:03 AM  
so, they got a lot of footage of the guy getting hit by the train... was there any footage of the person who pushed the guy in the tracks?
 
2012-12-05 10:52:11 AM  

Lava_Backflips: Volts do not kill. Amps are the killers.



www.walgreens.com


That's what the FDA is trying to prove.
 
2012-12-05 10:52:14 AM  
Really? Another Gawker link?

Subby can't stay away from the $10 meth addicted hookers.
 
2012-12-05 10:52:36 AM  
If you're unfamiliar with the schedule, or a relative n00b at the subway, how would you know for certain which direction to run before the train appears?
 
2012-12-05 10:53:56 AM  

BronyMedic: Guys, I've been doing some digging, and I found live video of this poor man's death. I warn you, it's NSFW and totally graphic, he literally gets gibbed by the train.

Graphic Train Station Security Footage


If you're into that sort of thing...

/did not watch
 
2012-12-05 10:55:17 AM  
I did not know that the good samaritan law required that you take a photo before helping.
 
2012-12-05 10:55:48 AM  

JackieRabbit: BronyMedic: Guys, I've been doing some digging, and I found live video of this poor man's death. I warn you, it's NSFW and totally graphic, he literally gets gibbed by the train.

Graphic Train Station Security Footage

If you're into that sort of thing...

/did not watch


zombiecupcakes.files.wordpress.com

Greatest unintentional comedy ever.
 
2012-12-05 10:56:40 AM  

BronyMedic: Guys, I've been doing some digging, and I found live video of this poor man's death. I warn you, it's NSFW and totally graphic, he literally gets gibbed by the train.

Graphic Train Station Security Footage


I had no idea a head had that much blood in it. It's like a tomato.
 
2012-12-05 10:56:43 AM  

BronyMedic: Guys, I've been doing some digging, and I found live video of this poor man's death. I warn you, it's NSFW and totally graphic, he literally gets gibbed by the train.

Graphic Train Station Security Footage


That was AWESOME!
 
2012-12-05 10:57:11 AM  
run faster than a subway train? that's impossible unless your like superman
 
2012-12-05 10:57:16 AM  

BronyMedic: Guys, I've been doing some digging, and I found live video of this poor man's death. I warn you, it's NSFW and totally graphic, he literally gets gibbed by the train.

Graphic Train Station Security Footage


Damnit. I was too slow to get this up first.

/good work sir
 
2012-12-05 10:57:16 AM  
So the "expert" in this article is some guy from the Internet... that's some good work there.
 
2012-12-05 10:58:46 AM  

BronyMedic: Guys, I've been doing some digging, and I found live video of this poor man's death. I warn you, it's NSFW and totally graphic, he literally gets gibbed by the train.

Graphic Train Station Security Footage


the cover of the newspaper upset me a little. no thanks.
 
2012-12-05 10:59:30 AM  

Jon iz teh kewl: If 660 volts is enough to kill a person what the fark are cops doing with 1000000 volt tasters


Sigh, in the future I recommend you learn to google something before running your mouth off. It's the amps that kills you not the volts.The volts just make it easier to overcome your skin's resistance. A 9v battery can kill you, and has resulted in a darwin award in fact, if you managed to get direct blood contact on both hands.
 
2012-12-05 11:00:40 AM  

kumanoki: Train platforms in Japan are built with recesses underneath the platforms that you can get in if you fall or get pushed onto the tracks.


A bonus of this design is that the remains of the people who suicide themselves by jumping in front of trains can simply be shoved into the recess, allowing the full shinkansen service schedule to be maintained until the nighttime garbage collection train makes its rounds.

There are also sluices to collect the blood and viscera so that it can later be pressed into surimi, or "imitation crab stick".
 
2012-12-05 11:01:03 AM  

whizbangthedirtfarmer: If you're unfamiliar with the schedule, or a relative n00b at the subway, how would you know for certain which direction to run before the train appears?


The signals at track level for the arriving train should indicate which way it coming from. If you can see any green or yellow lights, walk in that direction.
 
2012-12-05 11:01:47 AM  

fruitloop: I had no idea a head had that much blood in it. It's like a tomato.


It's a well known fact that the human body contains approximately 18 gallons of highly watery blood under intense pressure.

I just hope Jon iz teh kewl brought a big enough boat to troll all those fish back to shore with.
 
2012-12-05 11:02:46 AM  

Rakishi: Jon iz teh kewl: If 660 volts is enough to kill a person what the fark are cops doing with 1000000 volt tasters

Sigh, in the future I recommend you learn to google something before running your mouth off. It's the amps that kills you not the volts.The volts just make it easier to overcome your skin's resistance. A 9v battery can kill you, and has resulted in a darwin award in fact, if you managed to get direct blood contact on both hands.


i KNOW that. i'm just pointing out the fact that the person writing this article is a douchebag for saying something is DANGEROUS because it is a few hundred VOLTS.
 
2012-12-05 11:02:58 AM  

nburghmatt: BronyMedic: Guys, I've been doing some digging, and I found live video of this poor man's death. I warn you, it's NSFW and totally graphic, he literally gets gibbed by the train.

Graphic Train Station Security Footage

the cover of the newspaper upset me a little. no thanks.


He was joking, the video was a scene from the Suicide Club movie. Not real.
 
2012-12-05 11:03:39 AM  
If the dude who pushed him onto the tracks had instead attacked him mma style then it would have been OK to farkers because there is no good reason for a concerned citizen to randomly walk up and confront someone who is up to no good. Those sorts of people deserve a good beat down.
 
2012-12-05 11:03:54 AM  

ha-ha-guy: You'd think that would be standard everywhere.


Major parts of the NYC subway system are over 100 years old. It would be extremely expensive in capital and in lost station usage to retrofit all stations with such recesses under the platforms. The system only experiences a track-related fatality about once every two weeks, so clearly it's not worth the cost.

/besides, they would immediately become sleeping quarters for homeless
 
2012-12-05 11:03:54 AM  

ha-ha-guy: whizbangthedirtfarmer: If you're unfamiliar with the schedule, or a relative n00b at the subway, how would you know for certain which direction to run before the train appears?

The signals at track level for the arriving train should indicate which way it coming from. If you can see any green or yellow lights, walk run as fast as your short, stubby legs will take you in that direction.

 
2012-12-05 11:06:33 AM  

Jon iz teh kewl: Comic Book Guy: Jon iz teh kewl: If the platform appears flush with the approaching train, you could take shelter in the space between the two sets of train tracks. This is a dangerous choice, though, because you'd have to traverse the third rail, which carries 660 volts of electricity, more than enough to kill a person. A final option is to simply lie flat - there may be enough clearance for the train to pass over you.

If 660 volts is enough to kill a person what the fark are cops doing with 1000000 volt tasters

It's not the volts, it's the amps that kill. 660 volts with a shiatload of amps to power the onboard motors will turn you into KFC pretty quickly. 50,000V at .5 amps or whatever is enough to start involuntary muscle spasms and generally piss you off, but not (usually, there are exceptions and everyone's physiology is different) enough to kill you.

i'm perfectly aware it's the "mills that kill". the problem is what does that have to do with electricity?? wind energy??



Well played, looks like you got plenty of bites. Give yourself a bro-five.
 
2012-12-05 11:06:45 AM  
NYC subway's actually do have some safety mechanisms on most tracks. There are recesses on the walls of many stations that you can lean against to get out of the way of a train. In the center tracks there's also spaces to stand. These aren't accidental, they are intentional.

Worth noting however they were made 80 years ago... for skinny people. You fatties are going to get dragged.
 
2012-12-05 11:07:17 AM  

indarwinsshadow: Comic Book Guy: Jon iz teh kewl: If the platform appears flush with the approaching train, you could take shelter in the space between the two sets of train tracks. This is a dangerous choice, though, because you'd have to traverse the third rail, which carries 660 volts of electricity, more than enough to kill a person. A final option is to simply lie flat - there may be enough clearance for the train to pass over you.

If 660 volts is enough to kill a person what the fark are cops doing with 1000000 volt tasters

It's not the volts, it's the amps that kill. 660 volts with a shiatload of amps to power the onboard motors will turn you into KFC pretty quickly. 50,000V at .5 amps or whatever is enough to start involuntary muscle spasms and generally piss you off, but not (usually, there are exceptions and everyone's physiology is different) enough to kill you.

.5 is above 500 milliamps. Way above the threshold to kill you. It hurts at .01


I fail at the maths, you're right.
 
2012-12-05 11:11:03 AM  

DIGITALgimpus: There are recesses on the walls of many stations that you can lean against to get out of the way of a train. In the center tracks there's also spaces to stand. These aren't accidental, they are intentional.


They're designed to be used by trained track workers doing maintenance work, to allow trains to travel through at very low speeds without having to completely evacuate the tunnels.

It's better than nothing if you're a layperson and a train is coming into a station at normal speed, but it still doesn't offer guaranteed survival.
 
2012-12-05 11:12:22 AM  

poot_rootbeer: ha-ha-guy: You'd think that would be standard everywhere.

Major parts of the NYC subway system are over 100 years old. It would be extremely expensive in capital and in lost station usage to retrofit all stations with such recesses under the platforms. The system only experiences a track-related fatality about once every two weeks, so clearly it's not worth the cost.

/besides, they would immediately become sleeping quarters for homeless


As stations get retrofitted/go through the general maintenance you could take them out of service during off peak hours to put a few alcoves in under the platform though. They don't have to be sleeping human size, make them big enough someone could go cower in them in a near fetal position. That way only homeless midgets will use them for sleep.

Just toss in some LED lighting to mark the alcove and paint "cower here" in the alcove.
 
2012-12-05 11:12:53 AM  

Jon iz teh kewl: i KNOW that. i'm just pointing out the fact that the person writing this article is a douchebag for saying something is DANGEROUS because it is a few hundred VOLTS.


Fair point although I'd say it makes sense from a readability point of view here since it's an implied comparison against other high amp sources (including car batteries). The alternative is to mentions that it's both high voltage and high current which seems pointlessly pedantic in this case to me.
 
2012-12-05 11:13:12 AM  
Why do the trains come into the stations going so fast that they can't stop is someone has fallen onto the tracks? Do they really think that someone's impatience in needing to get where they're going is more important that a life?
 
2012-12-05 11:13:15 AM  
They need to get those mariachi bands out of the subway.
 
2012-12-05 11:15:13 AM  

occamswrist: If the dude who pushed him onto the tracks had instead attacked him mma Gangnam style then it would have been OK to farkers because there is no good reason for a concerned citizen to randomly walk up and confront someone who is up to no good. Those sorts of people deserve a good beat down.


/the only style I now accept
 
2012-12-05 11:15:34 AM  

Rakishi: Jon iz teh kewl: i KNOW that. i'm just pointing out the fact that the person writing this article is a douchebag for saying something is DANGEROUS because it is a few hundred VOLTS.

Fair point although I'd say it makes sense from a readability point of view here since it's an implied comparison against other high amp sources (including car batteries). The alternative is to mentions that it's both high voltage and high current which seems pointlessly pedantic in this case to me.


so is swallowing a 9 volt battery as effective as cyanide?
 
2012-12-05 11:17:58 AM  

Jon iz teh kewl: so is swallowing a 9 volt battery as effective as cyanide?


No, but it will kill you.

www.learningradiology.com

ars.els-cdn.com
 
2012-12-05 11:20:17 AM  

BronyMedic: Guys, I've been doing some digging, and I found live video of this poor man's death. I warn you, it's NSFW and totally graphic, he literally gets gibbed by the train.

Graphic Train Station Security Footage


Er, that's OK, I'm good...
 
2012-12-05 11:21:31 AM  

BronyMedic: Jon iz teh kewl: so is swallowing a 9 volt battery as effective as cyanide?

No, but it will kill you.

[www.learningradiology.com image 650x759]

[ars.els-cdn.com image 527x314]


i'm only counting 6 volts
 
2012-12-05 11:22:09 AM  

Frankenstorm: occamswrist: If the dude who pushed him onto the tracks had instead attacked him mma Gangnam style then it would have been OK to farkers because there is no good reason for a concerned citizen to randomly walk up and confront someone who is up to no good. Those sorts of people deserve a good beat down.

/the only style I now accept


In a couple days I just might call you on that. I'll try to remember to link to what I'm pretty sure will end up on YouTube...
 
2012-12-05 11:24:25 AM  

Cloudchaser Sakonige the Red Wolf: Why do the trains come into the stations going so fast that they can't stop is someone has fallen onto the tracks? Do they really think that someone's impatience in needing to get where they're going is more important that a life?



A R32 NY Subway car has a mass of 36,260 kilograms. A train of four of them weighs in at 145,040 kilograms. The subway system would have to creep into a station not to have the momentum to squish someone.
 
2012-12-05 11:29:52 AM  

whizbangthedirtfarmer: If you're unfamiliar with the schedule, or a relative n00b at the subway, how would you know for certain which direction to run before the train appears?


Run away from the light. Unless you just experienced severe pain. Then run towards the light.
 
2012-12-05 11:31:45 AM  
the best way to not get hit by the train is to stand firm, thump your staff on the ground and say "YOU SHALL NOT PASS!"
 
2012-12-05 11:32:58 AM  

Cloudchaser Sakonige the Red Wolf: Why do the trains come into the stations going so fast that they can't stop is someone has fallen onto the tracks? Do they really think that someone's impatience in needing to get where they're going is more important that a life?


Maybe the trains should just never travel faster than 5mph.

Of course, that will turn a 30-minute commute into a 2-hour one, and multiply that by 5 million riders per day and you're wasting two thousand man-years of time every day, the equivalent of twenty-five lifetimes. So as long as train accidents are killing more than 25 people per day, we'd come out ahead.
 
2012-12-05 11:33:52 AM  

Englebert Slaptyback: If you were to fall and hit the ground at 30, 20, or 10mph you would at least get the wind knocked out of you. Now imagine trying to find a handhold and maintain a grip on the front of a train at that precise moment.


In pure theory, if you can manage to jump onto the train, subject yourself to less than 7 kN of force (since the pelvis breaks around 7 kN according to teh Googles), fly off the train and take less than 7 kN on the landing (and then the train stops before it runs off you) you'd be okay.

The reality is you likely get run the fark over. That said getting squished between the platform and the train is always the worse in that the momentum of the train will have a lot of time to act on you (and you're caught between metal and concrete). Trying for the ladders, safety alcoves, hoping the train has the ground clearance to pass over your prone form, etc, are all the best bet. However if the shiat hits the fan and you have no other option, the trying to grab the train is better than the platform squish.
 
2012-12-05 11:35:22 AM  

ha-ha-guy: Just toss in some LED lighting to mark the alcove and paint "cower here" in the alcove.


Sign would need to be multi-lingual. Do you think the text will be large enough to read easily if it's in English, Spanish, French, German, Chinese, and Korean?
 
2012-12-05 11:37:49 AM  

Jon iz teh kewl: BronyMedic: Jon iz teh kewl: so is swallowing a 9 volt battery as effective as cyanide?

No, but it will kill you.

[www.learningradiology.com image 650x759]

[ars.els-cdn.com image 527x314]

i'm only counting 6 volts


1.25V - 1.65V depending on the material. None of those are in series.
 
2012-12-05 11:39:01 AM  

poot_rootbeer: ha-ha-guy: Just toss in some LED lighting to mark the alcove and paint "cower here" in the alcove.

Sign would need to be multi-lingual. Do you think the text will be large enough to read easily if it's in English, Spanish, French, German, Chinese, and Korean?


I'm sure you could convey it with a picture just like every airline in the world does with their safety brochures. Plus you could have a graphic on the platform (or elsewhere in the station, in the train cars, etc) that conveys the existence and purpose of these niches.
 
2012-12-05 11:43:32 AM  
I doubt anyone could run far or fast while negotiating the ties and other assorted crap that lies on the floor of the tunnel.

If no one was willing to help pull him up his best option was to step over the rail and wait between the columns.
 
2012-12-05 11:47:23 AM  

bulldg4life: Ok, so, why haven't they designed lower profile subway trains that don't require such high platforms.

Too much retrofitting to decades old subway stations?


Same reason why they don't have automatic brakes. People would wander around on the tracks and cause problems.

Seriously, that's why. The only thing that keeps thugs from wandering onto the tracks is that it's so obviously fatal.
 
2012-12-05 11:47:26 AM  

Petey4335: Jon iz teh kewl: BronyMedic: Jon iz teh kewl: so is swallowing a 9 volt battery as effective as cyanide?

No, but it will kill you.

[www.learningradiology.com image 650x759]

[ars.els-cdn.com image 527x314]

i'm only counting 6 volts

1.25V - 1.65V depending on the material. None of those are in series.


they don't NEED to be in series. the hydroelectric fluid in the stomach provides super conduction.
 
2012-12-05 11:49:39 AM  

doczoidberg: The key is to stand firm, and confront the train.
If you don't stand up for yourself, the train will never respect you.


If only he'd had a gun he would be alive. He could have stood his ground and the train would have either fled or died. (Or the guy he was fighting with that pushed him, either way.)
 
2012-12-05 11:50:53 AM  

doczoidberg: The key is to stand firm, and confront the train.
If you don't stand up for yourself, the train will never respect you.



I don't know why, but this comment is making me laugh.
 
2012-12-05 11:52:09 AM  
I guess it might vary by humidity, but at that voltage, how far can the third rail arc? I've long wondered how feasible it is to step over it, to stand between the ceiling support columns between the tracks. However, I see in TFA that a redditor who says he's a conductor advises against that (and cautions that the third rail's cover can't be relied on to support human weight).
 
2012-12-05 11:55:19 AM  

doczoidberg: The key is to stand firm, and confront the train.
If you don't stand up for yourself, the train will never respect you.


Lol.
 
2012-12-05 11:58:50 AM  
Yeah, the platform is too high for most people to vault back on. Run away from the train is your best option. Usually there are two sets of tracks as well. Run to the set of tracks where the train isn't.

Although in a ffew panicked 10-20 seconds, many people may make the wrong choice....
 
2012-12-05 11:59:19 AM  

gittlebass: the best way to not get hit by the train is to stand firm, thump your staff on the ground and say "YOU SHALL NOT PASS!"


Sure, that sounds good, but then the train grabs you with its whip and pulls you down into the abyss.

Which in New York is apparently full of pink mood slime.
 
2012-12-05 12:00:24 PM  
I doubt this guy if he had known about any track recess or place he could have ducked the train, or anybody else, would have had the capacity to get out of the way of the train after they had been pushed on the track. Anybody that gets pushed on to the track is probably going to be dazed for a few minutes, it is a pretty good fall, and not have their bearings. So just about all of us in the same situation as this guy probably would have ended up dead also.
 
2012-12-05 12:05:42 PM  

poot_rootbeer: Cloudchaser Sakonige the Red Wolf: Why do the trains come into the stations going so fast that they can't stop is someone has fallen onto the tracks? Do they really think that someone's impatience in needing to get where they're going is more important that a life?

Maybe the trains should just never travel faster than 5mph.

Of course, that will turn a 30-minute commute into a 2-hour one, and multiply that by 5 million riders per day and you're wasting two thousand man-years of time every day, the equivalent of twenty-five lifetimes. So as long as train accidents are killing more than 25 people per day, we'd come out ahead.



2.bp.blogspot.com

Looking at it that way, Jimmy Carter was WAAY worse than Hitler and Stalin combined.
 
2012-12-05 12:07:05 PM  

Amos Quito: Looking at it that way, Jimmy Carter was WAAY worse than Hitler and Stalin combined.


Well given Michigan has been "70 mph on the signs, but in reality your ass needs to be doing 80 mph or face merciless tailgating", we're basically the federal highway version of Auschwitz.
 
2012-12-05 12:13:56 PM  

TWX: Jon iz teh kewl: If the platform appears flush with the approaching train, you could take shelter in the space between the two sets of train tracks. This is a dangerous choice, though, because you'd have to traverse the third rail, which carries 660 volts of electricity, more than enough to kill a person. A final option is to simply lie flat - there may be enough clearance for the train to pass over you.

If 660 volts is enough to kill a person what the fark are cops doing with 1000000 volt tasters

It's the total energy that kills you, not the volts. Voltage just happens to be a bigger number than amps, which is more impressive. If they wanted to convert everything into Watts that'd be a much, much bigger number.

/watts = volts x amps


Incorrect. Amperage is what kills you. Going from memory, as little as 50 mA can kill you. Something like 100 mA means you stop breathing and your heart can't beat. Extreme low voltage DOES mean that you don't conduct (current = 0, in that case), but after you get above that threshold, it's current that kills.

Also incorrect: watts = volts x amps.
You are correct ONLY for DC. For AC, watts is the real component of Volts 8 Amps and VARS is the imaginary component. This is what "power factor" means. Its the ratio of watts to volt-amperes.

Additionally, for AC systems: Power(average) = Volts(peak) * Amps(peak) * 0.5
 
2012-12-05 12:21:41 PM  

kumanoki: Train platforms in Japan are built with recesses underneath the platforms that you can get in if you fall or get pushed onto the tracks.


Most modern train platforms have this. Not sure why ny subways do not. Not a huge construction project and would save lives.
 
2012-12-05 12:37:02 PM  

ongbok: I doubt this guy if he had known about any track recess or place he could have ducked the train, or anybody else, would have had the capacity to get out of the way of the train after they had been pushed on the track. Anybody that gets pushed on to the track is probably going to be dazed for a few minutes, it is a pretty good fall, and not have their bearings. So just about all of us in the same situation as this guy probably would have ended up dead also.


yep. Shocking enough to be minding your own business and find yourself pushed down onto the tracks. I doubt many people would have the presence of mind to save themselves after they've picked themselves up, thought, OH FARK, and then realized that a train is coming too, and they only have a few seconds to save themselves.
 
2012-12-05 12:45:09 PM  

whizbangthedirtfarmer: how would you know for certain which direction to run before the train appears?


Unless you're at a terminal station (WTC for the E, Times Square for the 7 etc), trains usually come from your left when you're standing on the platform facing the tracks (there may be a few exceptions). When in doubt head to the nearest green/red signal.

/before reading this, my first instinct would also probably be to try to climb right back to the platform
 
2012-12-05 12:51:51 PM  

damageddude: trains usually come from your left when you're standing on the platform facing the tracks (there may be a few exceptions).


Depends on if you're in a station that has center platforms or side platforms. Or, in a number of cases, stacked platforms.

Also whether you're on an express or local track.
 
2012-12-05 12:58:03 PM  

damageddude: whizbangthedirtfarmer: how would you know for certain which direction to run before the train appears?

Unless you're at a terminal station (WTC for the E, Times Square for the 7 etc), trains usually come from your left when you're standing on the platform facing the tracks (there may be a few exceptions). When in doubt head to the nearest green/red signal.

/before reading this, my first instinct would also probably be to try to climb right back to the platform


Here's the thing, though: what if you're a tourist? There's little chance that you would know which direction the train is coming from, and at what time (though the distant rumbling will help that process). I'm thinking about all of my trips on the DC Metro. Depending on which stop I'm on, and the time of day, the train could really be coming from either direction (except for the outskirts). I have also had two conflicting responses: one that says run toward the red light, the other saying run away from it.
 
2012-12-05 01:02:52 PM  

SirTanon: Epic comment from below the article:

"Another way to prepare is to build up your body's resistance to electricity, so you do not have to worry about the third rail. It is kind of like a building up a tolerance for poison by ingesting a little bit at a time. I started years ago shocking myself with small amounts of electricity and then just building up the amps and voltage. This is often what murderers did in the old days, in order to avoid death by the electric chair.

You build up a tolerance quite quickly. Another ancillary benefit is that it seems to have a natural calming effect on the nerves. I suspect I could probably tolerate the third rail, now. Fortunately, I live in a city without a subway, so I don't have to worry about it. But if I go to the big city, I know I will be prepared. "



That only works with iocane powder.
 
2012-12-05 01:13:01 PM  

poot_rootbeer: kumanoki: Train platforms in Japan are built with recesses underneath the platforms that you can get in if you fall or get pushed onto the tracks.

A bonus of this design is that the remains of the people who suicide themselves by jumping in front of trains can simply be shoved into the recess, allowing the full shinkansen service schedule to be maintained until the nighttime garbage collection train makes its rounds.

There are also sluices to collect the blood and viscera so that it can later be pressed into surimi, or "imitation crab stick".


I see Mr Wiggin of Ironside and Malone is still up to his usual level of excellence.
 
2012-12-05 01:13:58 PM  

Cloudchaser Sakonige the Red Wolf: Do they really think that someone's impatience in needing to get where they're going is more important that a life?


Visit NYC for 2 hours and you'll know the answer to that is "yes."
 
2012-12-05 01:26:31 PM  
we need to outlaw all trains... these things are more dangerous than guns!

lh3.googleusercontent.com
 
2012-12-05 01:27:55 PM  

poot_rootbeer: Also whether you're on an express or local track.


I knew I was forgetting something. Maybe the best advice if you end up on the NYC subway tracks is to look for the lit signal on your track and run towards it. At worse you get a little extra time for the train to stop.
 
2012-12-05 01:37:47 PM  
This seems like a problem with simple technological fixes.

1. Big Button on pedestal near platform every 50 feet: PUSH BUTTON IF PERSON IS ON TRACKS

2. Surveillance cameras covering the entire length of the station track bed, connected to a motion-sensing computer that knows when trains are entering station. Nothing should ever be moving around on the tracks when a train is not in station, during normal operations.

,

Either one of these triggers yellow flashing warning lights at entrance to station and 500 meters out in both directions, so the driver knows to slow down and come into the station slowly, watching for anything on tracks.

3. Method for a train driver to reset the warning system from the train after entering station, if all-clear.
 
2012-12-05 01:44:00 PM  
gawker sure is milking this story
 
2012-12-05 01:48:43 PM  

Isildur: I guess it might vary by humidity, but at that voltage, how far can the third rail arc? I've long wondered how feasible it is to step over it, to stand between the ceiling support columns between the tracks. However, I see in TFA that a redditor who says he's a conductor advises against that (and cautions that the third rail's cover can't be relied on to support human weight).


At atmospheric pressure (temperature and humidity are second-order terms), air breaks down at about 2000V per millimeter. So that 660V rail -- assuming you know that's what the voltage is -- is not going to reach out and whack you. I agree with redditor that it is by far best never to try to step over one, there are too many other things that could go wrong. But if the alternative is being hit by a train... step the fark over the rail. It is not some sort of sci-fi curtain of death.  And nowhere as dangerous as a downed multi-kV powerline... which will reach out and whack you.
 
2012-12-05 02:02:18 PM  

whizbangthedirtfarmer: Here's the thing, though: what if you're a tourist? There's little chance that you would know which direction the train is coming from, and at what time (though the distant rumbling will help that process). I'm thinking about all of my trips on the DC Metro. Depending on which stop I'm on, and the time of day, the train could really be coming from either direction (except for the outskirts). I have also had two conflicting responses: one that says run toward the red light, the other saying run away from it.


I don't know where the mysterious "third rail" is either.
 
2012-12-05 02:03:55 PM  

Fooby: This seems like a problem with simple technological fixes.

1. Big Button on pedestal near platform every 50 feet: PUSH BUTTON IF PERSON IS ON TRACKS

2. Surveillance cameras covering the entire length of the station track bed, connected to a motion-sensing computer that knows when trains are entering station. Nothing should ever be moving around on the tracks when a train is not in station, during normal operations.

,

Either one of these triggers yellow flashing warning lights at entrance to station and 500 meters out in both directions, so the driver knows to slow down and come into the station slowly, watching for anything on tracks.

3. Method for a train driver to reset the warning system from the train after entering station, if all-clear.



My father just retired after 34 years as a subway operator and I've picked up way more than enough to address your points.

1) People are assholes. Aside from pranksters you are going to have people push the button to delay a train.Ever see people rush a subway and prop the door open so they can get on rather than wait for the next train? That triggers a safety switch that prevents the train from moving until a driver or other employee manually resets the switch and is the #1 cause of train delays.

2) Already exists and is standard operating procedure worldwide.

There is already a set of traffic lights to inform the operators of conditions ahead and how to proceed.

3) Also exists.
 
2012-12-05 02:04:13 PM  

EddyKilowatt


At atmospheric pressure (temperature and humidity are second-order terms), air breaks down at about 2000V per millimeter. So that 660V rail -- assuming you know that's what the voltage is -- is not going to reach out and whack you. I agree with redditor that it is by far best never to try to step over one, there are too many other things that could go wrong. But if the alternative is being hit by a train... step the fark over the rail. It is not some sort of sci-fi curtain of death. And nowhere as dangerous as a downed multi-kV powerline... which will reach out and whack you.


Oh right, like we're going to take electricity safety advice from someone named EddyKilowatt.


:-)
 
2012-12-05 02:04:22 PM  

Amos Quito: kumanoki: Train platforms in Japan are built with recesses underneath the platforms that you can get in if you fall or get pushed onto the tracks.


[www.thepanamadigest.com image 475x340]

Which is good, because those Japanese can be pushy.


"They used to call me Pusher..."
/Hated it that he was grenaded at the end.
//Was funny seeing all the jerries drop to give a clear shot at the guilty one.
///Should be enough hints for anybody.
 
2012-12-05 02:11:45 PM  

Englebert Slaptyback:


Oh right, like we're going to take electricity safety advice from someone named EddyKilowatt.


:-)


blogs.ocweekly.com

You must be thinking of my cousin.
 
2012-12-05 02:13:12 PM  

spentmiles: I was on the platform waiting for the same train as this guy. You can be sure that he wasn't smiling.

He was fighting for his life, probably thinking about his little daughter or son waiting by the door for him to get home that evening. Or how he'd been working really hard lately, dedicating himself to his recovery, and how it was all starting to pay off. Or what his wife would like for Christmas.

Looking into his face was like looking through a rip in the very fabric of reality. Underneath our thoughts and emotions is the primal energy that flees insecurity and death with every ounce of its power. I haven't been able to get the spiralling look in his eyes, like hypnotic circles, out of my mind.

I really wish that I could've grabbed him and pulled him up, but it all just looked so surreal in the viewfinder of my iPhone.


you never disappoint.
 
2012-12-05 02:35:14 PM  
Not terribly familiar with subways since I only rode one once, but why do the trains not come to a stop before the entrance way and then slowly roll into the station? (kind of how roller coasters work)
 
2012-12-05 02:48:40 PM  

OhioUGrad: Not terribly familiar with subways since I only rode one once, but why do the trains not come to a stop before the entrance way and then slowly roll into the station? (kind of how roller coasters work)


You could do that if you wanted an even slower transit system. On the whole there aren't that many injuries or deaths with subways when you consider how many people use them on a daily basis. A better idea would be if people would just stop crowding the platform and stand back from the tracks. Every subway I've ridden has a line clearly painted that you are supposed to wait behind while waiting for the train to stop and the people on the train to exit.
 
2012-12-05 02:52:28 PM  

whizbangthedirtfarmer: If you're unfamiliar with the schedule, or a relative n00b at the subway, how would you know for certain which direction to run before the train appears?


In much (all? New York Farkers, help me out) of the NYC system, it's refreshingly simple; the trains follow the drive-on-the-right-side rule, like the cars on the streets above. If you're standing on an outer platform, the trains will come from your left and exit to your right.
 
2012-12-05 03:14:27 PM  

cryinoutloud: whizbangthedirtfarmer: Here's the thing, though: what if you're a tourist? There's little chance that you would know which direction the train is coming from, and at what time (though the distant rumbling will help that process). I'm thinking about all of my trips on the DC Metro. Depending on which stop I'm on, and the time of day, the train could really be coming from either direction (except for the outskirts). I have also had two conflicting responses: one that says run toward the red light, the other saying run away from it.

I don't know where the mysterious "third rail" is either.


Lesson learned: if you fall onto the tracks in any city other than NYC, you're basically completely screwed.
 
2012-12-05 03:15:42 PM  

Maul555: we need to outlaw all trains... these things are more dangerous than guns!

[lh3.googleusercontent.com image 512x350]


Quite the opposite, every home in America needs 10 of them. Also, the super fast bullet trains are for hunting and engineering practice, nothing more.
 
2012-12-05 03:22:44 PM  

OhioUGrad: Not terribly familiar with subways since I only rode one once, but why do the trains not come to a stop before the entrance way and then slowly roll into the station? (kind of how roller coasters work)


A subway train is many times the length (not to mention mass) of a roller coaster. Inching its way into the station would take much more time. Additionally, extra stops and starts waste a significant amount of power. (Currently only the 2, 4, 5, 6, L, and N train have electrically regenerative brakes. I think other trains still manage to recover some energy through the fact that stations were sometimes deliberately placed on a rise compared to the midpoints between stations, to let gravity assist trains during the acceleration and then let them store up potential energy as they slow down and rise during the approach to the next station. )

As terrible as this is, it's a relatively rare event, when you consider that literally millions of people ride the subway each day. You would probably save more lives, at less expense, by once a month employing a nurse at each express station to set up a booth and provide free blood pressure checkups.
 
2012-12-05 03:28:12 PM  

RTOGUY: Fooby: This seems like a problem with simple technological fixes.

1. Big Button on pedestal near platform every 50 feet: PUSH BUTTON IF PERSON IS ON TRACKS

1) People are assholes. Aside from pranksters you are going to have people push the button to delay a train.Ever see people rush a subway and prop the door open so they can get on rather than wait for the next train? That triggers a safety switch that prevents the train from moving until a driver or other employee manually resets the switch and is the #1 cause of train delays.


Fine, then put them down where the track is. I certainly wouldn't jump down there and try and push a button near the track under the assumption that the Union POS actually wired the farking thing right or that some rat hadn't chewed a hole in the line somewhere. I know I know there are people Darwin enough to do it but at least you wouldn't have THAT big of an issue with it
 
2012-12-05 03:33:07 PM  

cryinoutloud: I don't know where the mysterious "third rail" is either.


It's located outside the other two tracks (meaning, not between them), and looks different because the wheels don't run on it, so it's not load-bearing. The train just just has an electrical contact projecting from its side that runs along the rail. Most, if not all subway systems put the third rail on the opposite side of the tracks inside stations, so if someone goes down to track level, they don't have to cross it to climb back onto the platform.

This pic isn't NYC, but it gives an idea what I'm talking about. The third rail is the noticeably different one.

www.trackoff.org
 
2012-12-05 03:58:19 PM  

kitsuneymg: Incorrect. Amperage is what kills you. Going from memory, as little as 50 mA can kill you. Something like 100 mA means you stop breathing and your heart can't beat. Extreme low voltage DOES mean that you don't conduct (current = 0, in that case), but after you get above that threshold, it's current that kills.

Also incorrect: watts = volts x amps.
You are correct ONLY for DC. For AC, watts is the real component of Volts 8 Amps and VARS is the imaginary component. This is what "power factor" means. Its the ratio of watts to volt-amperes.


Maybe you can explain something for me. My grasp of electrical physics is pretty basic - how does the whole "it's not the volts that kill, it's the amps" thing mesh with Ohm's Law, exactly?

By which I mean, Third Rail shock Vs. Taser shock. I=V/R

Both shocks are being delivered to a person, so let's just say the R value for a person is X.

So for the third rail, I = 600/X
And for the taser, I = 50000/X

So what am I missing that makes the taser, in fact, mostly harmless, and the third rail an instaBBQ?

Is it an AC Vs. DC thing or something?
 
2012-12-05 05:32:23 PM  

Mega Steve: cgraves67: All right, big smiles everyone. On the count of three say "ChooChoo!"

[24.media.tumblr.com image 500x377]


That... that train wants to eat my soul, doesn't it?
 
2012-12-05 05:32:57 PM  
The Insane Clown Posse called to remind us that no one really knows how Ohm's formula works and that it's really a big farking miracle..
 
2012-12-05 05:34:29 PM  

China White Tea: kitsuneymg: Incorrect. Amperage is what kills you. Going from memory, as little as 50 mA can kill you. Something like 100 mA means you stop breathing and your heart can't beat. Extreme low voltage DOES mean that you don't conduct (current = 0, in that case), but after you get above that threshold, it's current that kills.

Also incorrect: watts = volts x amps.
You are correct ONLY for DC. For AC, watts is the real component of Volts 8 Amps and VARS is the imaginary component. This is what "power factor" means. Its the ratio of watts to volt-amperes.

Maybe you can explain something for me. My grasp of electrical physics is pretty basic - how does the whole "it's not the volts that kill, it's the amps" thing mesh with Ohm's Law, exactly?

By which I mean, Third Rail shock Vs. Taser shock. I=V/R

Both shocks are being delivered to a person, so let's just say the R value for a person is X.

So for the third rail, I = 600/X
And for the taser, I = 50000/X

So what am I missing that makes the taser, in fact, mostly harmless, and the third rail an instaBBQ?

Is it an AC Vs. DC thing or something?


mmm BBQ pulled pork
*droools*

cdn.blogs.babble.com
 
2012-12-05 06:49:50 PM  

suziequzie: Mega Steve: cgraves67: All right, big smiles everyone. On the count of three say "ChooChoo!"

[24.media.tumblr.com image 500x377]

That... that train wants to eat my soul, doesn't it?


Maybe. This one DEFINITELY does:

www.conservativecommune.com
 
2012-12-05 07:17:20 PM  

ha-ha-guy: whizbangthedirtfarmer: If you're unfamiliar with the schedule, or a relative n00b at the subway, how would you know for certain which direction to run before the train appears?

The signals at track level for the arriving train should indicate which way it coming from. If you can see any green or yellow lights, walk in that direction.


What if I only see a red light? I stop, right?
 
2012-12-05 07:56:34 PM  

whizbangthedirtfarmer: cryinoutloud: whizbangthedirtfarmer: Here's the thing, though: what if you're a tourist? There's little chance that you would know which direction the train is coming from, and at what time (though the distant rumbling will help that process). I'm thinking about all of my trips on the DC Metro. Depending on which stop I'm on, and the time of day, the train could really be coming from either direction (except for the outskirts). I have also had two conflicting responses: one that says run toward the red light, the other saying run away from it.

I don't know where the mysterious "third rail" is either.

Lesson learned: if you fall onto the tracks in any city other than NYC, you're basically completely screwed.


img690.imageshack.us

The DC metro has a recess under every platform edge in every station (see page two), and the third rail is always on the opposite side of the track in regards to the platform in every station. So if you fall on the track in any DC metro station, throw your ass against the platform wall and lie straight. If it's an open-air station or two-track station, you might be able to jump to the other track, but you'll have to deal with the electrified rail.

If you know the rules, falling on the tracks on the DC metro is a helluva lot safer than NY. They built that safety platform on purpose.
 
2012-12-05 08:04:47 PM  

China White Tea: kitsuneymg: Incorrect. Amperage is what kills you. Going from memory, as little as 50 mA can kill you. Something like 100 mA means you stop breathing and your heart can't beat. Extreme low voltage DOES mean that you don't conduct (current = 0, in that case), but after you get above that threshold, it's current that kills.

Also incorrect: watts = volts x amps.
You are correct ONLY for DC. For AC, watts is the real component of Volts 8 Amps and VARS is the imaginary component. This is what "power factor" means. Its the ratio of watts to volt-amperes.

Maybe you can explain something for me. My grasp of electrical physics is pretty basic - how does the whole "it's not the volts that kill, it's the amps" thing mesh with Ohm's Law, exactly?

By which I mean, Third Rail shock Vs. Taser shock. I=V/R

Both shocks are being delivered to a person, so let's just say the R value for a person is X.

So for the third rail, I = 600/X
And for the taser, I = 50000/X

So what am I missing that makes the taser, in fact, mostly harmless, and the third rail an instaBBQ?

Is it an AC Vs. DC thing or something?


To grossly simplify the explanation, it's that you're thinking about two different X's.

X (the resistance of the circuit) is the resistance of the human + the resistance of the rest of the circuit. X_h + X_c, if you will.

The TASER has a very, very high X_c. The third rail has a low X_c.
 
2012-12-06 12:40:37 AM  

namtok_muu: spentmiles: I was on the platform waiting for the same train as this guy. You can be sure that he wasn't smiling.

He was fighting for his life, probably thinking about his little daughter or son waiting by the door for him to get home that evening. Or how he'd been working really hard lately, dedicating himself to his recovery, and how it was all starting to pay off. Or what his wife would like for Christmas.

Looking into his face was like looking through a rip in the very fabric of reality. Underneath our thoughts and emotions is the primal energy that flees insecurity and death with every ounce of its power. I haven't been able to get the spiralling look in his eyes, like hypnotic circles, out of my mind.

I really wish that I could've grabbed him and pulled him up, but it all just looked so surreal in the viewfinder of my iPhone.

you never disappoint.


Please, PocketNinja would have written something 10 times better than if he put no effort in at all.

Also, iPhones don't have viewfinders.
 
2012-12-06 05:00:04 AM  

Quick Fixer: China White Tea: kitsuneymg: Incorrect. Amperage is what kills you. Going from memory, as little as 50 mA can kill you. Something like 100 mA means you stop breathing and your heart can't beat. Extreme low voltage DOES mean that you don't conduct (current = 0, in that case), but after you get above that threshold, it's current that kills.

Also incorrect: watts = volts x amps.
You are correct ONLY for DC. For AC, watts is the real component of Volts 8 Amps and VARS is the imaginary component. This is what "power factor" means. Its the ratio of watts to volt-amperes.

Maybe you can explain something for me. My grasp of electrical physics is pretty basic - how does the whole "it's not the volts that kill, it's the amps" thing mesh with Ohm's Law, exactly?

By which I mean, Third Rail shock Vs. Taser shock. I=V/R

Both shocks are being delivered to a person, so let's just say the R value for a person is X.

So for the third rail, I = 600/X
And for the taser, I = 50000/X

So what am I missing that makes the taser, in fact, mostly harmless, and the third rail an instaBBQ?

Is it an AC Vs. DC thing or something?

To grossly simplify the explanation, it's that you're thinking about two different X's.

X (the resistance of the circuit) is the resistance of the human + the resistance of the rest of the circuit. X_h + X_c, if you will.

The TASER has a very, very high X_c. The third rail has a low X_c.


so the question is, can i cook a raw chicken with a taser? if u can maybe i should be a cop
 
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