u/FluffyAd6520

hello everyone!

whenever I do research regarding the last moments of the reactor before the explosion, I always see the same 3 theories. The hydrogen theory (been disproved many times). The second steam explosion theory (the sudden influx of water that surged into the bottom of the core caused a second much larger explosion, my personal favourite). And the nuclear theory, that the excursion somehow had enough energy to cause a nuclear “fissile” and that obliterated the core. My question is, why do so many people (and experts alike) believe this one over the steam one? Is there any evidence suggesting one over the other? Thanks!

(also I apologize for any grammatical errors, English is not my first language so any recommendations are appreciated!)

Hello everyone! I am currently trying to make a cloud chamber without using dry ice. The reason is because where I live dry ice is fairly expensive so I’m working without it. I’ve tried many times and had several… interesting failures but I can’t get the vapour to super saturate. I’ve tried all sorts of different dimensions for my chamber and the closest I’ve got is alcohol condensing on the bottom (at least I think it’s condensed on the bottom) but no vapour. Any tips?

hello everyone! sorry if this is a dumb question but I’m fairly new to the “hobby” side of nuclear science and wanted to see how legal it was to obtain radioactive sources. can I remove the A241 from smoke detectors? I want a small alpha source to test my new Geiger counter.

Thank you! sorry if this is a stupid question.