Does anyone know where I can get samples of elements (especially sodium) - grocery store cheap, and not necessarily pure?
Also, where can I get liquid nitrogen (or any other liquid around or lower than that temperature)?
EDIT: Does anybody know of a game like TPT, but realistic?
United Nuclear has a nice selection. Not sure if they'll be a stable source because it looks like it's starting to run short on many elements.
Also for the liquid nitrogen, depending on where you live you might need a license and training course on the usage of it. Usually AirGas has those types of gases and such. The canister however will cost $100+ for rental.
Thanks, those are great sites (especially the first one).
I know that you could find magnesium in the camping section of places like Walmart. The radioactive element americium can be found inside most smoke detectors. As for sodium, I'm not sure where one could buy cheap sodium, as the places that I have seen, such as United Nuclear, charge hazmat fees to ship it.