Bath bombs’ primary ingredients are a weak acid and a bicarbonate base. These are unreactive when dry, but react vigorously when dissolved in water to produce their characteristic fizzing over a period of several minute carbon dioxide bubbles on bathers’ skin gives a tickling sensation some find pleasant.
On September 18th, 1980, Americans
came very close to nuclear disaster.
During maintenance on a Titan II missile
in an Arkansas silo, an airman dropped
a wrench, which plummeted 70 feet and
punctured the missile, spraying rocket
fuel everywhere. The incident was
quickly covered up, but had the bomb
exploded, millions would have been
killed or irradiated. Source