The uranium was in a liquid form ("solution", FTA). Less likely to catch fire, easier to process, but also easier to mishandle in a way that would promote a nuclear reaction.
What causes the reaction is not pressure but neutrons. If the liquid is pooled up flat on the floor, most neutrons shoot out the top or bottom of the puddle. If that puddle is piled up in a bucket, or in the bottom of a glovebox (not the kind in your car, but the kind you reach into with lead-lined gloves) then more neutrons can hit more uranium and make more neutrons. Enough neutrons, and a blue flash results. Geometry matters.
Not sure why he threw the elevator shaft in there. Maybe there's a bucket at the bottom.
NRC has a big job keeping track of radiation sources and do a good job overall IMHO, but their feet still need to be held to the fire. See http://www.nrc.gov/reading-rm/doc-collections/even t-status/event/2007/20070302en.html for the nuclear errors reported in the US for one day this year. There are LOTS of licensed radiation sources out there, and many of them get lost/damaged/misused. Every day.
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I wouldn't want to get any SCO on my toilet.
The uranium was in a liquid form ("solution", FTA). Less likely to catch fire, easier to process, but also easier to mishandle in a way that would promote a nuclear reaction.
What causes the reaction is not pressure but neutrons. If the liquid is pooled up flat on the floor, most neutrons shoot out the top or bottom of the puddle. If that puddle is piled up in a bucket, or in the bottom of a glovebox (not the kind in your car, but the kind you reach into with lead-lined gloves) then more neutrons can hit more uranium and make more neutrons. Enough neutrons, and a blue flash results. Geometry matters.
Not sure why he threw the elevator shaft in there. Maybe there's a bucket at the bottom.
It's a Bento Box for dogs.
Open APIs are often good enough. Accurate, tested and unhacked up. The old ways.
NRC has a big job keeping track of radiation sources and do a good job overall IMHO, but their feet still need to be held to the fire. See http://www.nrc.gov/reading-rm/doc-collections/even t-status/event/2007/20070302en.html for the nuclear errors reported in the US for one day this year. There are LOTS of licensed radiation sources out there, and many of them get lost/damaged/misused. Every day.