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(WFAA Fort Worth)   Truck carrying liquid nitrogen overturns and crashes in Dallas. Driver gets out, resumes looking for Sarah Connor   (wfaa.com) divider line 94
    More: Scary, chemical tanker, fire trucks  
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6145 clicks; posted to Main » on 15 Jul 2013 at 8:25 PM (40 weeks ago)   |  Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»



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2013-07-15 07:06:57 PM
Ooh. That's just cold.
 
2013-07-15 07:18:16 PM
And my company is in the news again.

Don't stand down wind of it and watch your feet, you should be fine.  Sonofabiatch.  Damn drivers always messing with the safety scorecard.
 
2013-07-15 08:27:09 PM
www.gonemovies.com

/obscure?
 
2013-07-15 08:29:17 PM
I still like Terminator 2, but not so much since people kept asking, "Why didn't Skynet just send the Terminators to kill Sarah Connor when she was a kid, or kill her parents?
 
2013-07-15 08:36:48 PM
well done subby
 
2013-07-15 08:38:14 PM
Mentioned this to my chemist better-half, and all she said was "That's expensive."
 
2013-07-15 08:41:30 PM

skinink: I still like Terminator 2, but not so much since people kept asking, "Why didn't Skynet just send the Terminators to kill Sarah Connor when she was a kid, or kill her parents?


Skynet did not know which Sarah Connor was the mother of John Connor. It therefore could not have known where Ms. Connor lived during her childhood, nor would it be aware of the identity of her parents.
 
2013-07-15 08:44:33 PM
That was always a favorite trick question of mine when I was teaching HAZMAT response to volunteer firefighters and other people that may come into contact with transportation accidents. How to handle the liquid Nitrogen spill with a broken valve that could not be operated to shut off the leak.

/Stay away from it and let it go. Nitrogen is 78% of our atmosphere and will just freeze the ground is the correct answer. Nothing complex required.
 
2013-07-15 08:47:05 PM
Right now I hope Ms Connor gets hit by a satellite and dies of radiation poisoning.
 
2013-07-15 08:47:26 PM

Dimensio: skinink: I still like Terminator 2, but not so much since people kept asking, "Why didn't Skynet just send the Terminators to kill Sarah Connor when she was a kid, or kill her parents?

Skynet did not know which Sarah Connor was the mother of John Connor. It therefore could not have known where Ms. Connor lived during her childhood, nor would it be aware of the identity of her parents.


Yeah, there were no publicly available records in the 80's
 
2013-07-15 08:47:35 PM
Anybody got any warts they want to freeze off?
 
2013-07-15 08:47:54 PM

buzzcut73: That was always a favorite trick question of mine when I was teaching HAZMAT response to volunteer firefighters and other people that may come into contact with transportation accidents. How to handle the liquid Nitrogen spill with a broken valve that could not be operated to shut off the leak.

/Stay away from it and let it go. Nitrogen is 78% of our atmosphere and will just freeze the ground is the correct answer. Nothing complex required.


If it's out in the open, I suppose there's not much chance of asphyxiation? Or is there, if someone gets too close?
 
2013-07-15 08:48:30 PM
Compressed liquid nitrogen. Interesting, since liquids aren't compressible. it was liquid nitrogen, which is stored under pressure. But the liquid itself is not compressed.
 
2013-07-15 08:48:57 PM

Kyosuke: Mentioned this to my chemist better-half, and all she said was "That's expensive."


Huh?  The only price I've ever heard said it was roughly (or cheaper) than milk.  HAZMAT is also a non issue since ,as buzzcut73 noted, N2 already makes up most of our atmosphere and will quickly boil away anyway.  Just keep everybody away from the low-O2 zone and wait.
 
2013-07-15 08:51:39 PM

chitownmike: Dimensio: skinink: I still like Terminator 2, but not so much since people kept asking, "Why didn't Skynet just send the Terminators to kill Sarah Connor when she was a kid, or kill her parents?

Skynet did not know which Sarah Connor was the mother of John Connor. It therefore could not have known where Ms. Connor lived during her childhood, nor would it be aware of the identity of her parents.

Yeah, there were no publicly available records in the 80's


Yup. This was all explained by Reese in the first movie.
 
2013-07-15 08:53:54 PM
HE'LL KILL US ALL!
 
2013-07-15 08:54:11 PM

calbert: [www.gonemovies.com image 800x340]

/obscure?


i.imgur.com
 
2013-07-15 08:55:48 PM

Greek: Compressed liquid nitrogen. Interesting, since liquids aren't compressible. it was liquid nitrogen, which is stored under pressure. But the liquid itself is not compressed.


You're thinking of water. That's only true for water.
 
2013-07-15 08:56:04 PM

yet_another_wumpus: Kyosuke: Mentioned this to my chemist better-half, and all she said was "That's expensive."

Huh?  The only price I've ever heard said it was roughly (or cheaper) than milk.  HAZMAT is also a non issue since ,as buzzcut73 noted, N2 already makes up most of our atmosphere and will quickly boil away anyway.  Just keep everybody away from the low-O2 zone and wait.


Liquid nitrogen is cheaper. It's helium that can get farking expensive and is facing a supply crisis.
 
2013-07-15 08:59:11 PM
Driver was inweencibol!
 
2013-07-15 08:59:41 PM

yet_another_wumpus: Kyosuke: Mentioned this to my chemist better-half, and all she said was "That's expensive."

Huh?  The only price I've ever heard said it was roughly (or cheaper) than milk.  HAZMAT is also a non issue since ,as buzzcut73 noted, N2 already makes up most of our atmosphere and will quickly boil away anyway.  Just keep everybody away from the low-O2 zone and wait.


She says this tanker probably had (if full) about $25k worth on board. I knew the hazmat wasn't a concern.
 
2013-07-15 09:00:28 PM
I wonder if this event will cause N2 pollution, triggering global cooling, and the catastrophic advent of another snowball earth episode.
 
2013-07-15 09:00:41 PM

Greek: Compressed liquid nitrogen. Interesting, since liquids aren't compressible. it was liquid nitrogen, which is stored under pressure. But the liquid itself is not compressed.


Liquid Nitrogen, Oxygen, and Argon are frequently pumped though. Mainly through centrifugal pumps but reciprocating pumps are also used.  I suspect since the last time one of our trailers were involved in an accident the local news stated it was highly flammable argon that reporters might not be the smrtest.
 
2013-07-15 09:02:14 PM

yet_another_wumpus: Kyosuke: Mentioned this to my chemist better-half, and all she said was "That's expensive."

Huh?  The only price I've ever heard said it was roughly (or cheaper) than milk.  HAZMAT is also a non issue since ,as buzzcut73 noted, N2 already makes up most of our atmosphere and will quickly boil away anyway.  Just keep everybody away from the low-O2 zone and wait.


Well, the expense is in the heavy-duty wrecker bills, the diesel spill mitigation, and what kinds of repairs are needed to the trailer. Oh, yeah, and if the fire department bills at an hourly rate for the engine companies and hazmat team, as well as the State DOT.

History of air separation (WARNING 3.3 MB pdf) No word on the cost of producing the individual gasses and cryogenic liquids from air.
 
2013-07-15 09:04:38 PM

Kyosuke: yet_another_wumpus: Kyosuke: Mentioned this to my chemist better-half, and all she said was "That's expensive."

Huh?  The only price I've ever heard said it was roughly (or cheaper) than milk.  HAZMAT is also a non issue since ,as buzzcut73 noted, N2 already makes up most of our atmosphere and will quickly boil away anyway.  Just keep everybody away from the low-O2 zone and wait.

She says this tanker probably had (if full) about $25k worth on board. I knew the hazmat wasn't a concern.


No where near 25k.  Depending on the customer the cost will vary but 25k for nitrogen is outrageous.  It's the easiest of the gases to liquify.
 
2013-07-15 09:05:03 PM
Good news, everyone! So much for global warming!
 
2013-07-15 09:05:25 PM

Unobtanium: yet_another_wumpus: Kyosuke: Mentioned this to my chemist better-half, and all she said was "That's expensive."

Huh?  The only price I've ever heard said it was roughly (or cheaper) than milk.  HAZMAT is also a non issue since ,as buzzcut73 noted, N2 already makes up most of our atmosphere and will quickly boil away anyway.  Just keep everybody away from the low-O2 zone and wait.

Well, the expense is in the heavy-duty wrecker bills, the diesel spill mitigation, and what kinds of repairs are needed to the trailer. Oh, yeah, and if the fire department bills at an hourly rate for the engine companies and hazmat team, as well as the State DOT.

History of air separation (WARNING 3.3 MB pdf) No word on the cost of producing the individual gasses and cryogenic liquids from air.


Agreed, the cost of damage to the trailer, Hzmat, and others will easily go over 25k.
 
2013-07-15 09:06:45 PM

JacksonBryan: Kyosuke: yet_another_wumpus: Kyosuke: Mentioned this to my chemist better-half, and all she said was "That's expensive."

Huh?  The only price I've ever heard said it was roughly (or cheaper) than milk.  HAZMAT is also a non issue since ,as buzzcut73 noted, N2 already makes up most of our atmosphere and will quickly boil away anyway.  Just keep everybody away from the low-O2 zone and wait.

She says this tanker probably had (if full) about $25k worth on board. I knew the hazmat wasn't a concern.

No where near 25k.  Depending on the customer the cost will vary but 25k for nitrogen is outrageous.  It's the easiest of the gases to liquify.


Well, she generally deals with heavier stuff, so she was just guessing. I'll punish her later.
 
2013-07-15 09:07:12 PM

skinink: I still like Terminator 2, but not so much since people kept asking, "Why didn't Skynet just send the Terminators to kill Sarah Connor when she was a kid, or kill her parents?


Handwave it by saying most records were destroyed by the initial war and all they had to go by were college records (1984) and, I don't know, fragments of John's arrest record (1994).

Now, if you want an annoying question, if John was conceived in the middle of May, 1984, how the hell was he a ten year old in the middle of 1994?  They even list his DOB as being in 1985 in one of the police records shots.

/what day comes after "Twelfth... May... Thursday"?
 
2013-07-15 09:09:54 PM

Mister Peejay: skinink: I still like Terminator 2, but not so much since people kept asking, "Why didn't Skynet just send the Terminators to kill Sarah Connor when she was a kid, or kill her parents?

Handwave it by saying most records were destroyed by the initial war and all they had to go by were college records (1984) and, I don't know, fragments of John's arrest record (1994).

Now, if you want an annoying question, if John was conceived in the middle of May, 1984, how the hell was he a ten year old in the middle of 1994?  They even list his DOB as being in 1985 in one of the police records shots.

/what day comes after "Twelfth... May... Thursday"?


The 1990s called, it wants its paradox argument back.
 
2013-07-15 09:09:54 PM

Kyosuke: Well, she generally deals with heavier stuff, so she was just guessing. I'll punish her later.


No need to punish her.  It's not free to liquify nitrogen.
 
2013-07-15 09:10:18 PM
Headline's wrong, it should read John Conner.

/nitpick
 
2013-07-15 09:10:25 PM

chitownmike: Dimensio: skinink: I still like Terminator 2, but not so much since people kept asking, "Why didn't Skynet just send the Terminators to kill Sarah Connor when she was a kid, or kill her parents?

Skynet did not know which Sarah Connor was the mother of John Connor. It therefore could not have known where Ms. Connor lived during her childhood, nor would it be aware of the identity of her parents.

Yeah, there were no publicly available records in the 80's


You mean like phone books?
 
2013-07-15 09:13:29 PM
Brilliant headline, cheers for the laugh Subby!
 
2013-07-15 09:18:20 PM

shda5582: Headline's wrong, it should read John Conner.

/nitpick


Subby here  Yeah, I realized it after I hit the add link.  But, I went with the meme.
 
2013-07-15 09:20:43 PM
What I don't get is why do they keep transporting nitrogen? FFS it's farking everywhere!
 
2013-07-15 09:23:02 PM

skinink: I still like Terminator 2, but not so much since people kept asking, "Why didn't Skynet just send the Terminators to kill Sarah Connor when she was a kid, or kill her parents?


Because James Cameron is only slightly better than George Lucas at scriptwriting, and just as good at marketing.
 
2013-07-15 09:24:12 PM

JacksonBryan: Kyosuke: Well, she generally deals with heavier stuff, so she was just guessing. I'll punish her later.

No need to punish her.  It's not free to liquify nitrogen.


Do me a favor and don't tell her that until tomorrow.
 
2013-07-15 09:24:50 PM

traylor: What I don't get is why do they keep transporting nitrogen? FFS it's farking everywhere!


Yes, but electrically expensive to condense it to liquid for a number of places. People who condense things in bulk can make money on a lot of different liquid gasses that come out of the atmosphere, not just nitrogen, versus someone at a university lab who only needs the LN2
 
2013-07-15 09:24:55 PM

Jacob_Roberson: Greek: Compressed liquid nitrogen. Interesting, since liquids aren't compressible. it was liquid nitrogen, which is stored under pressure. But the liquid itself is not compressed.

You're thinking of water. That's only true for water.


No, you are wrong.
 
2013-07-15 09:28:47 PM

buzzcut73: That was always a favorite trick question of mine when I was teaching HAZMAT response to volunteer firefighters and other people that may come into contact with transportation accidents. How to handle the liquid Nitrogen spill with a broken valve that could not be operated to shut off the leak.

/Stay away from it and let it go. Nitrogen is 78% of our atmosphere and will just freeze the ground is the correct answer. Nothing complex required.


Small amounts of LN2 on the floor make a good broom.
Large amounts of LN2 on the floor will suffocate people.

Greek: Compressed liquid nitrogen. Interesting, since liquids aren't compressible. it was liquid nitrogen, which is stored under pressure. But the liquid itself is not compressed.


LN2 is stable at atmospheric pressure, as long as it's cold enough. No need to pressurize it. You can keep LN2 in an open styrofoam cup for hours on end as long as you don't disturb it much and the air flow around it is low.
 
2013-07-15 09:34:11 PM

Big Man On Campus: traylor: What I don't get is why do they keep transporting nitrogen? FFS it's farking everywhere!

Yes, but electrically expensive to condense it to liquid for a number of places. People who condense things in bulk can make money on a lot of different liquid gasses that come out of the atmosphere, not just nitrogen, versus someone at a university lab who only needs the LN2


This^

Most plants that make LIN in bulk also make LOX and LAr (liquid argon).
 
2013-07-15 09:34:38 PM
No COOL tag? NO
 
2013-07-15 09:35:21 PM

Big Man On Campus: traylor: What I don't get is why do they keep transporting nitrogen? FFS it's farking everywhere!

Yes, but electrically expensive to condense it to liquid for a number of places. People who condense things in bulk can make money on a lot of different liquid gasses that come out of the atmosphere, not just nitrogen, versus someone at a university lab who only needs the LN2


You must be fun at parties.
 
2013-07-15 09:38:16 PM
+1 Subby. Nice work.
 
2013-07-15 09:40:05 PM

Big Man On Campus: buzzcut73: That was always a favorite trick question of mine when I was teaching HAZMAT response to volunteer firefighters and other people that may come into contact with transportation accidents. How to handle the liquid Nitrogen spill with a broken valve that could not be operated to shut off the leak.

/Stay away from it and let it go. Nitrogen is 78% of our atmosphere and will just freeze the ground is the correct answer. Nothing complex required.

Small amounts of LN2 on the floor make a good broom.
Large amounts of LN2 on the floor will suffocate people.


It's pretty cool to spill a bit of LN2 on the floor and watch the dust flow away, sort of looks like the inverse of the heat shimmer on a highway in the summer.  It's not so cool when you do it a few too many times and the floor tiles start to pop loose.
 
2013-07-15 09:41:53 PM
ChicagoKev:

It's pretty cool to spill a bit of LN2 on the floor and watch the dust flow away, sort of looks like the inverse of the heat shimmer on a highway in the summer.  It's not so cool when you do it a few too many times and the floor tiles start to pop loose.

It's also fun to put some in a coke bottle and put the lid on...then stand back a bit.
 
2013-07-15 09:42:17 PM
Fun fact: liquid compresses. Just only a tiny bit. Sound travels through water. What carries it? Pressure waves.

Anyway, that's beside the point, which is that fluid that is only a fluid because of the pressure it's under is called compressed fluid anyway.
 
2013-07-15 09:45:10 PM

Rigger1955: Jacob_Roberson: Greek: Compressed liquid nitrogen. Interesting, since liquids aren't compressible. it was liquid nitrogen, which is stored under pressure. But the liquid itself is not compressed.

You're thinking of water. That's only true for water.

No, you are wrong.


Correct.  All liquids, including LIQUID Nitrogen and LIQUID water, do not compress.
 
2013-07-15 09:50:40 PM

rkiller1: Correct.  All liquids, including LIQUID Nitrogen and LIQUID water, do not compress.


Incorrect.

"Some liquids resist compression, while others can be compressed." [wikipedia] Note that even "resist compression" need not be absolute, though it doesn't say that explicitly.

"The bulk elastic properties of a material determine how much it will compress under a given amount of external pressure. ... [The bulk modulus] for water is 2.2x109 N/m2. A common statement is that water is an incompressible fluid. This is not strictly true, as indicated by its finite bulk modulus, but the amount of compression is very small. At the bottom of the Pacific Ocean at a depth of about 4000 meters, the pressure is about 4 x 107 N/m2. Even under this enormous pressure, the fractional volume compression is only about 1.8% and that for steel would be only about 0.025%." [hyperphysics]
 
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