We’ll trace the history of the most important caesium-based technology all the way back to its original roots: a stick.
Today, we reach the last element on the periodic table — but only alphabetically speaking.
Let’s look past the bad reputation this element has to learn how it’s an essential part of an idyllic childhood.
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.