Measuring the amount of lead (Pb) consumed when drinking from lead crystal glassware. Is it safe? ~science chemistry Video 37:32, published Jul 6 2023 5 votes
Multi-layer reactive foil: no fuel, no oxygen, tons of heat ~science chemistry physics Video 6:08 9 votes
Demo and teardown of an X-ray fluorescence gun (measures chemical composition) ~engineering Video 22:48 5 votes
Electron microscope animation: Carbon nanotubes pulled into thread ~science chemistry Video 8:07 8 votes