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Gold is one of Earth’s most valuable resources, with one kilogram regularly valued at over 55,000 US dollars. In 2020, Mali produced an estimated 71.2 tons of gold. But Mali only saw $850 million from gold in 2020, when that amount is worth billions, not to mention that the country likely produced much more than …
Tens of thousands of conehead termites are swarming in the Panamanian air. These 4 young hopefuls are brave— oh… I guess 3. Oh, wow, 2 in 1. Okay! This single determined termite is braving countless threats to participate in the only flight of her lifetime. She evades the onslaught of predators even as she lands, …
Coneheads, egg stacks and anteater attacks: The reign of a termite queen – Barbara L. Thorne 더 보기 »
On a daily basis, you spend between a third and half your waking hours daydreaming. That may sound like a huge waste of time, but scientists think it must have some purpose, or humans wouldn’t have evolved to do so much of it. So to figure out what’s going on here, let’s take a closer …
Friendships can hold an exceptional place in our life stories. What is it about these connections that make them so unique? Before we dive into the science, let’s first observe one in action. If I could somehow design a best friend, you know, put together all the ideal qualities of my perfect match, that person …
How friendship affects your brain – Shannon Odell TED-Ed 18.9M subscribers Subscribed 더 보기 »
In the wealthiest circles of Victorian England, bizarre fads ran rampant. But perhaps none was as strange as the tapeworm diet, in which dieters swallowed an unhatched tapeworm and let it grow inside them by consuming undigested meals. Obviously, this is an exceptionally dangerous and unhealthy way to manage your weight. However, while modern fad …
On February 7th, 1967, Homer Loutzenheuser flipped a switch in Nebraska and realized a dream more than five decades in the making. The power grids of the United States joined together, forming one interconnected machine stretching coast to coast. Today, the US power grid is the world’s largest machine. It contains more than 7,300 electricity-generating …
What does the world’s largest machine do? – Henry Richardson 더 보기 »
What is the smartest age? Perhaps a day of friendly competition will lead us to the answer. Tomorrow’s the annual Brain Clash— ten teams of two competing in a decathlon of mental challenges, trivia competitions, and puzzles. I’ve been training all year. I’ll need to pick the smartest, most capable teammate. I’ve narrowed down the …
You and your friend need to ace Friday’s exam to avoid summer classes, and after a week of studying, you both feel confident that you pulled it off. But when you get your grades back, they’re much lower than the two of you expected. You’re devastated. However, your friend doesn’t seem too bothered, and it’s …
Medieval Europe. Where unbathed, sword-wielding knights ate rotten meat, thought the Earth was flat, defended chastity-belt wearing maidens, and tortured their foes with grisly gadgets. Except… this is more fiction than fact. So, where do all the myths about the Middle Ages come from? And what were they actually like? The “Middle Ages” refers to …
6 myths about the Middle Ages that everyone believes – Stephanie Honchell Smith 더 보기 »
For thousands of years, native Takhi horses roamed the steppes of Central Asia. But by the late 1960s, they’d become extinct in the wild— the last herds struggling in meager habitats against hunters and competition from local livestock. Some small groups of Takhi survived in European zoos, but their extinction still seemed inevitable. To prevent …
The return of Mongolia’s “wild” horses – Nigel Rothfels 더 보기 »
