One time I was welding on about an 8000 gal tank that had held very light aromatic fuels. It had a fiberglass/rubber liner that was in very poor condition and had absorbed many of the light components, and so the tank really could not be made safe to weld by simple cleaning. So I got a 50 gallon tank of liquid nitrogen to purge the tank. The day before I had added, a 6 inch 180 degree turn down on top of the tank which pointed to the ground and I then covered the flange with cardboard (mistake). I was repairing the tank on the other side of the turndown and adding some new fittings by welding them to the tank. What I did not realize while welding is that my cardboard had fallen off with the constant expansion of air within the tank because of heating from welding (my guess) along with the nitrogen purge. So anyway I was standing on a ten foot ladder and all of the sudden I heard something like a loud breath and then a jet engine sound. I stopped looked up for the jet flying overhead, didn’t see it so went back to work. About 30 seconds later I heard an extremely load breath, and then a huge roar, I immediately looked, and one of my coworkers had a look of terror. I immediately jumped down. That 180 degree turndown looked like a rocket engine and was incredible loud. It then stopped and cycled like this for about two minutes about four times. I figured later that the breath was air going in to the vessel on cool down and of course the engine sound was the inside of the tank burning after a fresh charge of oxygen. The cycling was caused by a fire within the tank that had somehow stayed lit maybe by red-hot slag.
The next time I used a real flange instead of cardboard.
I have an old Haynes Workshop Manual for a Volvo P1800 that is written in English, as opposed to American, which makes for some interesting differences. I understand how to air up the tyres, use a spanner, etc., but under the section for "Fuel System", there is one procedure which advises to "inspect the fuel tank for rust using a torch".
It took me a while to remember that torch==flashlight. Whew, that was close.
The more I read Jalopnik, the less I believe Darwin's survival of the fittest. Idiots street race and wind up killing innocent bystanders. Dumbasses take cars on 100+ mph test drives and kill uninvolved parties. How many more stories like this do we have to hear before we realize that Darwin was wrong. It's not "survival of the fittest". It's "survival of the dumbest so keep away from them or you might get dead".
I lament the dumbing down of humanity due to the offing of smart people who happen to be around the unfit survivors.
@engineerd: I do feel that we are witnessing the dawn of a real life Idiocracy... The idea behind that movie is what I kinda thought well before that movie was made. The dumb reproduce more and thus produce more stupid offspring. A good number of them do end up offing themselves, but all too often, not in great enough numbers, or not before planting the seed...
Non sequiteur: I was very disappointed by that movie. It had such potential unfulfilled.
Sometimes I refuse to believe that anyone is actually that stupid, but instead try to figure out a more likely scenario. Like she was trying to smoke some crack and didn't realize the gas can had been previously used for gasoline.
@Scandinavian Flick: Not entirely true - if the burns somehow made it impossible for this woman to reproduce (I couldn't imagine how) she's still eligible.
@Scandinavian Flick: I was relying on the elimination from procreation clause, but since it's ambiguous as to the extent of her injuries, i fell back to the honorable mention category, which allows for acts of stupidity which should have ended in reproductive impossibility, but failed.
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The next time I used a real flange instead of cardboard.
08/31/09
It took me a while to remember that torch==flashlight. Whew, that was close.
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Well.
Let's just hope she didn't reproduce.
Darwinism isn't quite dead. It's waiting to jump out of the bushes and getcha!
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I lament the dumbing down of humanity due to the offing of smart people who happen to be around the unfit survivors.
08/31/09
Non sequiteur: I was very disappointed by that movie. It had such potential unfulfilled.
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That's hawt
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heh, wonky eye...lulz
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Put on your ban boots, everyone!
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That said; clearly our education system has failed us... Not to mention the DMV, when somehow, geniuses like this are allowed driver's licenses.
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I ain't shallow, but a girl with no eyebrows is a bit of a turnoff.
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Half a brown bag?
Lights off on one side of the room?