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(Yahoo)   Your driverless car, with your kids inside, is rolling backwards into traffic. Do you A) open the door and pull the emergency brake, B) run down to stop traffic before the car gets hit, or C) lay down behind your car "like a speed-bump" to stop it?   (gma.yahoo.com) divider line 95
    More: Scary, driverless car, shoulder dislocation, leg fracture, physical therapy, traffic  
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7010 clicks; posted to Main » on 18 Mar 2014 at 10:24 PM (44 weeks ago)   |  Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»



95 Comments   (+0 »)
   
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2014-03-18 11:31:48 PM  
If anyone's curious, if you ever  have to stop a wheeled vehicle from the direction in which its rolling (obviously if you have a choice,  don't) the optimal point to apply force is parallel to the ground at the vehicle's vertical center of mass.  In the case of a car, that means a bit above the bumper, for practical reasons grabbing the bumper or jsut throwing your shoulder against the tail-gate will give you the best stopping power.

Literally the  worst leverage you can get in terms of trying to stop the vehicle is to try to obstruct the wheels from the bottom.  Sure, it's what you do when you stop a car with blocks, but a car is  specifically designed to roll over things once it's moving so nine times in ten it'll just roll over whatever you put there.

// Grew up in a place where having to push around or stop your truck/car with muscle power was a fairly frequent occurrence.
 
2014-03-18 11:32:51 PM  

Jim_Callahan: If anyone's curious, if you ever  have to stop a wheeled vehicle from the direction in which its rolling (obviously if you have a choice,  don't) the optimal point to apply force is parallel to the ground at the vehicle's vertical center of mass.  In the case of a car, that means a bit above the bumper, for practical reasons grabbing the bumper or jsut throwing your shoulder against the tail-gate will give you the best stopping power.

Literally the  worst leverage you can get in terms of trying to stop the vehicle is to try to obstruct the wheels from the bottom.  Sure, it's what you do when you stop a car with blocks, but a car is  specifically designed to roll over things once it's moving so nine times in ten it'll just roll over whatever you put there.

// Grew up in a place where having to push around or stop your truck/car with muscle power was a fairly frequent occurrence.
/// Amish Country BTW

 
2014-03-18 11:36:17 PM  

Warthog: My buddy washed out of Navy flight school when he was sitting in his trainer on the deck of the training carrier, and the plane next to him started rolling forward. He thought he was rolling backwards, off the edge of the deck. He said eject, eject, eject, and pulled the handle. The helo had to fish him out of the Gulf of Mexico. Flight career: over. He became a radar officer in the back of an E2C, did the minimum, and left the Navy the first day he could.


That could be a great story if told us about the part between pulling the lever and him being fished out and dropped the last sentence. We can do the left the navy quickly math ourselves.
 
2014-03-18 11:39:39 PM  
Farkin' Google cars will be the death of us all.
 
2014-03-18 11:52:11 PM  

bborchar: No parking brake?

/I always use mine
//always


Well that's just stupid.  You would never get the car to move.

/never
 
2014-03-18 11:56:10 PM  
i feel like there are better ways to do things.
 
2014-03-18 11:58:09 PM  
There is nothing altruistic about a parent saving their off spring, it is selfishness that they wish to save the (often genetic) progeny.
 
2014-03-18 11:58:19 PM  

C18H27NO3: Did it work?


Evidently not. She got run OVER.
 
2014-03-18 11:59:55 PM  
I was going to pass this article by but then I wondered: Did it work?

Turns out it did.
 
2014-03-19 12:01:32 AM  

trappedspirit: bborchar: No parking brake?

/I always use mine
//always

Well that's just stupid.  You would never get the car to move.

/never


oh it moves, but the burning smell is atrocious.
 
2014-03-19 12:02:01 AM  

kitsuneymg: LordOfThePings: "I said make sure my daughter's got out of the car safely."

You want me to make sure the "got out of the car safely" belonging to your daughter does what? C'mon, this is an emergency!

You haven't noticed people using contractions for "X has"? I know it ain't what they taught in school, but perhaps ya should learn yourself about dialects and that there vernacular.


No. I have not noticed that. It is some form of hick-speak?

Where would I need to visit to experience such a charming dialect?
 
2014-03-19 12:03:23 AM  
www.burningclam.com
 
2014-03-19 12:05:56 AM  

SomethingToDo: There's a kind of sympathetic magic which gets reinforced by cinema and by the folklore of a certain popular western European distaff of Judaism that says that sacrifice == salvation. Reality says taking care in the first place and not multiplying the body count through your actions, no matter how selfless, is way better.


Isn't rationalizing that using a fat man to stop the car the right answer?
www.jillianditner.com
 
2014-03-19 12:08:02 AM  
A few years back an old lady (in her 70's I think) who worked for meals on wheels, was run over and killed by her own car making a delivery to someone in my apartment complex.  No one else was in the car, and it was a small parking lot.  She should have let it roll.  :(
 
2014-03-19 12:08:26 AM  
Where's Greater Chimdale County Man when you need him?
 
2014-03-19 12:14:42 AM  
I'm surprised that no place in the article does it tell the audience that YOU SHOULD NEVER GET IN FRONT OF A ROLLING VEHICLE.

/Actually not surprised
 
2014-03-19 12:15:39 AM  
It's good to see a parent trying to protect their kids at all costs.

Yes, there were better ways to do it but few people can think in a panic and she did the first/simplest thing she could think of.

I mean, it's not like she ate their eyes or bit off their noses or something.
 
2014-03-19 12:21:45 AM  

HairBolus: using a fat man to stop the car


Nah, the fat man;s family would sue.
 
2014-03-19 12:23:46 AM  

filter: kitsuneymg: LordOfThePings: "I said make sure my daughter's got out of the car safely."

You want me to make sure the "got out of the car safely" belonging to your daughter does what? C'mon, this is an emergency!

You haven't noticed people using contractions for "X has"? I know it ain't what they taught in school, but perhaps ya should learn yourself about dialects and that there vernacular.

No. I have not noticed that. It is some form of hick-speak?

Where would I need to visit to experience such a charming dialect?


Anywhere proper English is spoken will suffice.

http://en.wikipedia.org/wiki/Wikipedia:List_of_English_contractions
 
2014-03-19 12:24:01 AM  
D: Update your insurance.
 
2014-03-19 12:30:13 AM  

kitsuneymg: LordOfThePings: "I said make sure my daughter's got out of the car safely."

You want me to make sure the "got out of the car safely" belonging to your daughter does what? C'mon, this is an emergency!

You haven't noticed people using contractions for "X has"? I know it ain't what they taught in school, but perhaps ya should learn yourself about dialects and that there vernacular.


I'm sure he's seen it before, but it's probably been a while.

Is "got" an acceptable abbreviation of "gotten" in that context though?
 
2014-03-19 12:34:39 AM  

SomethingToDo: There's a kind of sympathetic magic which gets reinforced by cinema and by the folklore of a certain popular western European distaff of Judaism that says that sacrifice == salvation. Reality says taking care in the first place and not multiplying the body count through your actions, no matter how selfless, is way better.


There's a famous quote from a countess in Italy who, when her son was placed on a catapult and the attackers told her to open her castle to them, she lifted her skirt and said something like "Throw the boy, I've got the oven to bake another." She won that battle and the subsequent war. Got her kid back alive, too.

It's probably not true, per se, but it's a good story that reinforces the point that you shouldn't throw your own life away going full Maude Flanders. Temper rescue efforts with sanity.
 
2014-03-19 12:41:52 AM  
if you need to move a car you can't quite push, grab one of the wheels with both hands & turn it hard.
if the wheel is 2ft in dia [most are larger & you apply 200-300 lbs of turning force along the outside of tire,
you are generating enough torque to move the car smartly,
200lbs 1 ft from center = 200ft lbs torque.
you can stop a slowly rolling car that way too.
fat people can just lay down ...
 
2014-03-19 01:12:21 AM  

doyner: "We've seen something like this before," he said. "It is an unfortunate accident and somehow her car wasn't in gear."

Not in gear (presume it's a stick shift) and no parking brake.  Uuuum, was the "DUMBASS" tag in the ICU or something?


Probably an automatic left running in reverse like inattentive idiots are wont to do.
 
2014-03-19 01:17:15 AM  

JSTACAT: if you need to move a car you can't quite push, grab one of the wheels with both hands & turn it hard.
if the wheel is 2ft in dia [most are larger & you apply 200-300 lbs of turning force along the outside of tire,
you are generating enough torque to move the car smartly,
200lbs 1 ft from center = 200ft lbs torque.
you can stop a slowly rolling car that way too.
fat people can just lay down ...


You get the same mechanical advantage by applying force to anywhere on the car since that force goes through the wheels.
 
2014-03-19 01:27:42 AM  

That Guy Jeff: Jesus christ, and she just got out of a shelter.


In related news, there are now shelters for people too stupid to live, and they're letting people out of them.
 
2014-03-19 01:50:02 AM  
Not really a speed bump, more like a wheel chink......or is it wheel chock?
 
2014-03-19 02:04:41 AM  

kitsuneymg: LordOfThePings: "I said make sure my daughter's got out of the car safely."

You want me to make sure the "got out of the car safely" belonging to your daughter does what? C'mon, this is an emergency!

You haven't noticed people using contractions for "X has"? I know it ain't what they taught in school, but perhaps ya should learn yourself about dialects and that there vernacular.


You're right. She probably only cares about one of her daughters.
 
2014-03-19 02:51:22 AM  

Warthog: My buddy washed out of Navy flight school when he was sitting in his trainer on the deck of the training carrier, and the plane next to him started rolling forward. He thought he was rolling backwards, off the edge of the deck. He said eject, eject, eject, and pulled the handle. The helo had to fish him out of the Gulf of Mexico. Flight career: over. He became a radar officer in the back of an E2C, did the minimum, and left the Navy the first day he could.


Holy shiat, lol.  I'm betting that that story has been told about 5o thousand times by now.
 
2014-03-19 02:54:13 AM  

Confusean: Not really a speed bump, more like a wheel chink......or is it wheel chock?


dod-a-chock?
 
2014-03-19 03:53:58 AM  
Mock if you will.
When babies are in danger, a parent's cave-person brain takes over, alighting on the first solution it finds that is guaranteed to work.
It may be a very stupid solution in hindsight, but cave-person brains don't think about what happens after the baby is saved.
Lucky thing for baby too, as often enough, hemming and hawing in cave-person world is fatal.

I once destroyed a screen door that dared to jam closed in between me and my 3-year-old.
Sweetie was like, "Why didn't you just use a screwdriver and remove the panel instead of breaking it?"
I was like, "Didn't think of that. You weren't there."
 
2014-03-19 06:20:18 AM  
"I don't consider myself a hero," she said. "I am just a mother."

/I dont consider you a hero either, more like an idiot. First, you don't know how to park a car, and second, why not get behind the wheel and put on the brakes? laying down under the car so it runs you over is retardation.
 
2014-03-19 06:46:00 AM  
She sounds fat.

/dnrfta
 
2014-03-19 07:10:55 AM  
A Lawrence, Mass., woman says she saved the lives of her twin daughters after she used herself as a "speed bump" to stop her car from rolling into traffic.


I don't believe this.   I literally don't believe this.  I suspect that everything would have been all right if the car had kept rolling...
 
2014-03-19 07:59:53 AM  
"My neighbor jumped in and he asked what I wanted them to do," she said. "I said make sure my daughter's got out of the car safely."


Not , oh I don't know, 'stop the farking car'?

And who was the dumbass neighbor that needed to ask what to do?
 
2014-03-19 08:20:52 AM  
Think I have used my parking break
/and each time forgot to release it
 
2014-03-19 08:25:18 AM  

MythDragon: "My neighbor jumped in and he asked what I wanted them to do," she said. "I said make sure my daughter's got out of the car safely."


Not , oh I don't know, 'stop the farking car'?

And who was the dumbass neighbor that needed to ask what to do?



Possibly that meant "Are you still behind the rear tires or am I going to run you over again if I try to pull the car forward?"

/dnrtfa
 
2014-03-19 08:37:01 AM  

Lars The Canadian Viking: You get the same mechanical advantage by applying force to anywhere on the car since that force goes through the wheels.


No. If you push forward on the top of a wheel, it travels forward twice as far as the rest of the car (as it's passing through the apex point). At that point you are applying twice as much forward force as you would be if you were pushing on the body.

You can also think of the tire as a class 2 lever. The fulcrum is at the ground, the "load" is centered at the axle, and your force is applied to the top of the tire as the handle. The handle is 2x as far from the fulcrum as the load, so your force to the load is doubled.
 
2014-03-19 09:00:49 AM  

doyner: "We've seen something like this before," he said. "It is an unfortunate accident and somehow her car wasn't in gear."

Not in gear (presume it's a stick shift) and no parking brake.  Uuuum, was the "DUMBASS" tag in the ICU or something?


I drove a stick shift when I delivered pizzas.  I went to one house that the driveway was so steep, I had to shut it down, leave it in gear, set the parking brake and still had to make the drop off really quick because the truck was still slowly rolling towards the customers' cars.  When I got there, I knew my parking brake wasn't very good, so I shut it off and put it in gear.  As I got out, the truck moved in short movements with kachunk sounds as the weight of the truck was forcing the gears to move, so I picked a gear that moved the slowest and hurried the drop off.  They had a leveled part of the driveway near the house but was taken up by guests' cars.

Barnacles!: "SO close........"

[i98.photobucket.com image 631x300]


I can't agree with you on this one.  Her decisions may not have been the best ideas to any reasonable thinker, her actions were out protecting her daughters.  Darwin would've still lost because the girls would've lived anyways.
 
2014-03-19 09:06:30 AM  

Hermione_Granger: I was going to pass this article by but then I wondered: Did it work?

Turns out it did.


I thought the same question but being an Accord, she could've easily grabbed the car and pushed back.  I had it happen once when I had to push my first truck out of a ditch.  It was a Ram50, which weighed a little more than her car, and I had to chase it down before it rolled into the ditch on the other side.  It sucked getting stuck on a dirt road with no one around and without cellphone signal, but I survived without injury.
 
2014-03-19 09:23:12 AM  

Confusean: Not really a speed bump, more like a wheel chink......or is it wheel chock?


The injury became serious because the car was on a slope.
 
2014-03-19 11:34:15 AM  

untaken_name: filter: kitsuneymg: LordOfThePings: "I said make sure my daughter's got out of the car safely."

You want me to make sure the "got out of the car safely" belonging to your daughter does what? C'mon, this is an emergency!

You haven't noticed people using contractions for "X has"? I know it ain't what they taught in school, but perhaps ya should learn yourself about dialects and that there vernacular.

No. I have not noticed that. It is some form of hick-speak?

Where would I need to visit to experience such a charming dialect?

Anywhere proper English is spoken will suffice.

http://en.wikipedia.org/wiki/Wikipedia:List_of_English_contractions


Yes, because saying "make sure my daughter has got out of of the car safely" makes perfect sense, you stupid farking hillbilly.
 
2014-03-19 11:39:50 AM  

filter: kitsuneymg: LordOfThePings: "I said make sure my daughter's got out of the car safely."

You want me to make sure the "got out of the car safely" belonging to your daughter does what? C'mon, this is an emergency!

You haven't noticed people using contractions for "X has"? I know it ain't what they taught in school, but perhaps ya should learn yourself about dialects and that there vernacular.

No. I have not noticed that. It is some form of hick-speak?

Where would I need to visit to experience such a charming dialect?


Any place with a high drop-out rate compared to their graduation rate.
 
2014-03-19 11:42:33 AM  

untaken_name: filter: kitsuneymg: LordOfThePings: "I said make sure my daughter's got out of the car safely."

You want me to make sure the "got out of the car safely" belonging to your daughter does what? C'mon, this is an emergency!

You haven't noticed people using contractions for "X has"? I know it ain't what they taught in school, but perhaps ya should learn yourself about dialects and that there vernacular.

No. I have not noticed that. It is some form of hick-speak?

Where would I need to visit to experience such a charming dialect?

Anywhere proper English is spoken will suffice.

http://en.wikipedia.org/wiki/Wikipedia:List_of_English_contractions


It was clearly meant to be the plural form of the word daughter, not a contraction. Someone just doesn't know how to properly use an apostrophe.
 
2014-03-19 12:27:58 PM  
Am I the only one who thinks she just got ran over?   I dont' think she "tried to be a speed bump" at all... I think she tried to stop it, got ran over, then made up the story to try to save face of being ran over by her own car.

Kudos to her for trying to stop it though... but I suspect she just didn't put it in park or apply the brake.
 
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