Where a unique combination of strong currents and geography meet, maelstroms, enormous and powerful areas of swirling water, dangerous currents and whirlpools, can be found across the globe. Although many form (and die) in a relatively short period of time in response to catastrophic events (like a tsunami), others have existed for centuries. Asia Naruto Found in the strait between […]
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Karla asks: Why do graduates wear caps and gowns? Also, why do we throw our caps in the air when we graduate? Inquiring minds want to know!!! Wearing academic robes is a tradition that dates back to at least the 12th century, around the time when the first universities were being founded in Europe. During this time, most scholars were […]
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In Venezuela’s northwest state of Zulia, where the Catatumbo River empties into the southwest corner of Lake Maracaibo, a spectacular light show can be seen most nights of the year. Known alternately as the Catatumbo lightning, river of fire in the sky, Beacon of Maracaibo, everlasting lightning, the Lighthouse of Catatumbo and Relámpago del Catatumbo, this fixed lightning storm has […]
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Carl asks: What happens if you are sleep walking and you kill someone? Anyone who has ever tried to reason with a sleepwalker knows they can seem to be awake, yet have bizarre and irrational behaviors. Stubborn during the best of episodes, and inconsolable, unreasonable and intense in the worst, it is not hard to imagine these walking dreamers acting […]
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Stefan asks: Why do we still have pubic and armpit hair when we lost most of the rest of the hair on our bodies? What purpose does it serve? It’s a biological mystery that has perplexed humanity through the ages – especially in recent times when so many of us go to such great lengths to remove it. What useful […]
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On August 15, 1977, in Delaware, Ohio, SETI researchers from the Ohio State University detected a 72 second radio signal originating from somewhere around the constellation of Sagittarius. Because of the signal’s location, frequency and unique signature, it was quickly dubbed the “Wow!” signal, and since its discovery, speculation has run rampant that it was a message from an extra-terrestrial […]
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Have you ever been in a dark place, say a movie theatre or a room with all the blinds close, and walked outside into the daylight when, all of a sudden, you begin to sneeze uncontrollably? You had no runny nose or desire to sneeze prior to this exposure to sunlight, but you just can’t help that big achoo? If […]
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This is a weekly wrap of our Daily Knowledge Newsletter. You can get that newsletter for free here. Hobbs and His Lock Picks: The Great Lock Controversy of 1851 In April 1851, Alfred C. Hobbs boarded the steamship Washington bound for Southampton, England. His official duty was to sell the New York City-based company Day and Newell’s newest product – […]
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After just about six months since launching, our Daily Knowledge Podcast has reached 2 million downloads. Thanks for listening! If you have any feedback for us on it, we’re always interested. If you haven’t checked it out, you can listen to the podcast episodes here online, or subscriber via iTunes here, or simply use this xml link to subscribe via […]
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The man who served as the voice of Walt Disney’s iconic Mickey mouse for over 30 years, Wayne Allwine, was married to the woman who voices Minnie Mouse, Russi Taylor. Who knew, right? The two were married for nearly two decades until Wayne Allwine passed away in 2009 due to complications from diabetes. He was only 62. It wasn’t until […]
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On December 21, 1898, Marie and Pierre Curie discovered the radioactive element radium (in the form of radium chloride), extracting it from uraninite. They first removed the uranium from the uraninite sample and then found that the remaining matter was still radioactive, so investigated further. Along with the barium in the remaining substance, they also detected spectral lines that were […]
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America’s Independence Day is celebrated across the country with fireworks, hot weather, pool parties, and barbecues. For the thousands that gather on Coney Island in America’s largest metropolitan, New York City, July Fourth is commemorated with another annual tradition – the Nathan’s Hot Dog Eating Contest. Beginning in 1916, the Hot Dog Eating Contest has become the “de facto Olympics” […]
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mgh23 asks: Why is toilet paper always white? Toilet paper is an odd thing. Despite the fact that we often rub it against one of the most sensitive parts of our bodies on a daily basis, very little thought is ever given to where it came from or how it’s made. (On that note, it might surprise you to learn […]
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Fatima asks: How do 3D printers work? Originally built on the same technology as an ink jet printer, the basic process behind 3D printing is so easy to understand, replicate and implement, today it is used to manufacture everything from toys to body parts. Multiple Layers Fundamentally, 3D printing involves building an object by putting down successive layers of materials, […]
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James asks: Why does it hurt so much when you step on legos with bare feet? Right up there with how the gun on the original Duck Hunt game worked, why it hurts so much to step on a Lego brick is one of the questions we’re asked the most, so it’s high time we answered it. As anyone who’s […]
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Jeff asks: Is it true that wine vinegar is just wine with acetobacter added? Yep, but the process from start to finish is a little more complicated than just that. More than Just Wine Vinegar can be made from any of a variety of carbohydrates: “Fruits, such as apples, grapes, berries, melons and coconuts have been turned into vinegar. Natural […]
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In April 1851, Alfred C. Hobbs boarded the steamship Washington bound for Southampton, England. His official duty was to sell the New York City-based company Day and Newell’s newest product – the parautopic lock – at a trade show – London’s Great Exhibition. But Hobbs had something a bit more nefarious up his sleeve, or rather in the small trunk […]
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This is a weekly wrap of our Daily Knowledge Newsletter. You can get that newsletter for free here. What Causes Dark Circles Under Your Eyes? It is often claimed that periorbital dark circles are caused by tiredness or working too hard or even just staying up late. While this can be true, the truth is that your genes play a […]
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