yes the color coding for the departments is brilliant.
reminds me when I worked at the Soviet Republic of UAB. to a lay person the University of Alabama at Birmingham.
Back when you could smoke in the hospital, all of these people smoking had bright blue scrubs on. Imagine my surprise when I learned that they were Respiratory Therapy?
the people that saw the worst effects of smoking were SMOKING!!! blew my mind.
later on after marrying a cancer control specialist I learned from her just how addictive nicotine was. so glad I never started smoking.
He had to have piped in some kind of gas. pouring gasoline down there wouldn’t have been able to become a vapor that easy I wouldn’t think.
I suspect oxyacetalene.
Well Ahem…
I would have to agree with that.
having had limited experience with oxy/acetylene balloons in my past.
and dynamite waterproof fuse too. you have to have that.
I cannot imagine doing that though. and with the dogs out there? I guess there isn’t a second video of this guy because he offed himself, on his second go round.
we had a neighbor with large concrete ham radio antenna bases in their back yard about 4. well 1 was particularly large and near the house. turns out she had a friend with some C4 laying around his house. well let’s just say it was a REALLY loud explosion and concrete bits rained down all over for a bit. really messed up the house. too.
dude, a jackhammer back then was 8 bucks a day to rent.
he missed that memo.
If you haven’t seen it I suspect you might like the slightly unhinged Finns over at beyond the press… Here’s one of their earlier videos:
[Fair warning, some curse words in these videos]
Their production values have gotten much better since then. Really you can’t go wrong with them:
that is my experience.
you up the O2 and it will crack your skull. more acetylene and huge fireball.
so much easier using latex balloons and fuses. 
They did another with a weather balloon. It’s mental.
HOLY CRAP.
that would be MENTAL
I’d have said propane. Acetylene is much lighter than propane and more likely to evaporate before sinking in that much. As a jeweler, I used acetylene for that reason–if I had a leak it would rise and disperse rather than pooling in a low corner, waiting to get lit off.
In a jewelry shop I worked, we did use oxy-propane, but the tanks for propane were specially reinforced against leaks and explosion.
With oxy-acetylene, it’s the oxy[gen] that makes it so powerful, but it won’t go off like that on its own. Propane needs oxy for best results, but getting into crevices is its strength.
Working with glass and torches in furnace or lampworking one has to use propane as acetylene will not burn completely and muddy up the glass. Propane air works in soda-lime glass but for borosilicate “laboratory” glass the higher temps needed means you have to go to oxi-propane.
Interestingly, I used straight [propane (how did I make such a stupid error!?!] acetylene to torch-fire enamels. I got pretty good colors, but they were just a thin film on the metal.
Flame was always underneath the enamel, which was set up on a tripod.
Very interesting! That is certainly not a place for acetylene. Enamels are high lead, and any sort of reduction heating will get you particles of lead which will not be pretty.
Lead glass also generally melts at lower temps than soda-lime glass.
These were the unleaded enamels from Thompson Enamels. They weren’t as brilliant as the leaded ones, but they met my needs.
Two for one here. Two videos of large groups of people doing things that seem insanely difficult.
An astounding drum line routine:
And Russian-folk-dancing-inspired ballet:
Pretty amazing what people can do when they get together and work hard.
As ham radio operators say, “don’t let the smoke out of the box.”