Medieval alchemists, despite their lust for gold, considered mercury the most potent and poetic substance in the universe. As a child, I would have agreed with them. Sam Kean agreealchemistchild Change image and share on social
Scientists have continued to tinker with different elements and have learned new ways to store and deliver energy. Sam Kean continuedeliverelement Change image and share on social
When it comes to the periodic table, the United States really blew its chance to make a name for itself. If you look over a map of all the elements named for cities, states, countries, and continents, it's not surprising that European locales dominate the map. Sam Kean blowchancecity share on social
The brain, which is plastic when young, must be exposed to certain sights early in life, or it will remain blind to those sights forever. Sam Kean blindbrainearly Change image and share on social
The price of diamonds can vary greatly depending on size, cut, color, and other factors, including whether they have a history. But because of the rarity of blue boron diamonds, they often fetch more money than gems of similar quality. Sam Kean blueboroncolor share on social
Scientists didn't discover the noble gas helium - the second most common element in the universe - on Earth until 1895. And they thought it existed in minute quantities only, until miners found a huge underground cache in Kansas in 1903. Sam Kean cachecommondiscover share on social
All human beings are, in fact, born with dozens of mutations their parents lacked, and a few of those mutations could well be lethal if we didn't have two copies of every gene, so one can pick up the slack if the other malfunctions. Sam Kean bearbeingcopy share on social
Unlike uranium, plutonium was created in an American lab in 1940, but scientists soon realized that it could produce even wilder chain reactions and even bigger explosions. In fact, fearing another country would create it, too, the American government went to great lengths to keep even the existence of plutonium a secret. Sam Kean americanbigchain share on social
America was probably Europe's equal scientifically by the end of World War I and certainly surpassed it after the chaos of World War II. Sam Kean americachaosend Change image and share on social
Most stars just fuse hydrogen into helium, but larger stars can fuse helium into other elements. Still larger stars, in turn, fuse those elements into slightly bigger ones, and so on. Sam Kean bigelementfuse Change image and share on social