Sodium's explosive secrets revealed
nature.com
nature.com
Whenever I read stuff like I this, it saddens me just how much safety and common sense have eroded the spirit of scientific experimentation. These days, the most reactive chemical in a chemistry set is sodium bicarbonate.
I am of course not saying every kid that plays with sodium will become interested in science, just that perhaps this one wouldn't have, otherwise.
> Jungwirth’s colleague Philip Mason was determined to find out what was really going on — despite the hazards. In one run, he removed his face shield to blow out a small fire, only to have a piece of metal go off in his face, scratching his cheek.
I very, very strongly recommend reading Ignition!, it is truly awesome (it's the source for "Sand won't save you this time" and the book would be well worth its weight in rare metals if it were still possible to find the thing in any other form than a PDF)