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.
Magnesium makes for quite a fireworks display, whether inside your body or out.