Cadmium will let you choose among a range of orange-ish hues, but it’s some pretty awful news if you contract the “cadmium blues.”
Before we talk about one big gun, let’s discuss 1,500 years of military technology.
Like argon, today’s noble gas coincidentally features prominently in science fiction — albeit in name only. But krypton also takes a place in the science factual story of international weights and measures.
Meet one of the periodic table’s lesser-known liquid metals — and beware some dangerous competition from a few felonious element collectors.