In this episode, you’re going to learn how “9-1-1” was chosen for the emergency phone number in the U.S., as well as how the system was developed and continues to adapt to new technologies such as VoIP, cell phones, and texting. [TRANSCRIPT] Don’t miss future episodes of this podcast, subscribe here: iTunes | RSS/XML You can also find more episodes […]
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Simon E. asks: I was just wondering what a gamut is in the expression “run the gamut”? Meaning “the entire range,” the word gamut traces its origins to the Middle Ages and a system for designating musical notes. Around the turn of the second millennium, Guido of Arezzo, a medieval monk, developed a system of solmization, i.e., designating musical notes […]
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Making zombies of ants, Swiss cheese of snails and Sherpas of sheep and cows, the lancet liver fluke proves that you don’t need to be big to be powerful. Growing up to 10 mm by 2.5 mm (0.5 x 0.1 inches), Dicrocoelium dendriticum is a parasitic flatworm (also known as a trematode) that begins life as eggs living in the […]
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This Day In History: May 5, 1945 On May 5, 1945, Reverend Archie Mitchell and his pregnant wife Elsie had driven up to Gearhart Mountain with five of their Sunday school pupils (aged 11-14) to enjoy a picnic lunch. They encountered a road closure due to construction in Bly, Oregon. Elsie and the kids got out of the vehicle to […]
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In this episode, you’re going to learn about how Heinz got their “57” attached to their products as well as a lot of interesting stuff about the origin of the company and the Long Depression, which was previously known as the Great Depression before its name was usurped by a later, more famous depression. You’re also going to learn exactly […]
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Karla S. asks: What does it mean when a show gets syndicated? Selling the right to broadcast a television or radio program to independent stations, syndication has enabled the modern system of 24/7 broadcasting by providing producers of content with a consistent revenue stream, and stations with enough programming to satisfy their eager audiences. There are a variety of syndication […]
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Marcus asks: Where did the words flotsum and jetsum come from? Bumping into a rock or a reef, war, swamped by rough weather or high waves, pilot error or pirates, there are a variety of ways a ship can sink. After it does, depending on whether it floated out on its own, was thrown overboard or sank to Davy Jones […]
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The following is an article from Uncle John’s Bathroom Reader Eureka Moment On September 10, 1984, geneticist Alec Jeffreys, 34, was working in his lab at the University of Leicester, in central England. More precisely, he was in the lab’s darkroom, studying an X-ray that had been soaking in a developing tank over the weekend. The X-ray was the result […]
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This Day In History: May 4, 1970 Tin soldiers and Nixon coming, We’re finally on our own. This summer I hear the drumming, Four dead in Ohio – Neil Young “Ohio” By May of 1970, protests against the Vietnam War were popping up with increasing frequency all over the United States, and especially on college campuses. The recent revelation that […]
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This is a weekly wrap of our popular Daily Knowledge Newsletter. You can get that newsletter for free here. The Truth About the Surprisingly Recent Invention of the Tea Bag, and the Women Who Really Invented It Legend says that brewing tea dates back to around 2737 BC, when tea leaves fell into water being boiled for Emperor Shennong of […]
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In this episode, you’re going to learn about the origin of a very interesting “law” on the internet about the humorous best way to get an answer on the web, as well as what this has to do with Wikipedia. [TRANSCRIPT] Don’t miss future episodes of this podcast, subscribe here: iTunes | RSS/XML You can also find more episodes by […]
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Unknown to most, thousands of times each day we momentarily lose sight of the world around us. Known as saccadic masking, it is a function of the brain protecting us from suffering through blurred images that would otherwise be produced when our eyes move or shift. A saccade is a rapid eye movement between the places where the eye rests […]
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Ubiquitous in many classrooms since the 19th century, chalk and chalkboards are familiar to most of us. White, powdery and prone to sticking to those surfaces where it is put (and just as easy to wipe away), chalk and its accompanying board are excellent instructional aids. Notably, however, most chalk today isn’t technically chalk at all, but gypsum. Chalk and […]
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