Category Archives: Articles

Why Nuclear Bombs Create Mushroom Clouds

Susan K. asks: Why do nuclear bombs make mushroom clouds? This phenomenon all comes down to a little something called the Rayleigh-Taylor instability, and by extension, convection. I’ll begin with the somewhat longer, but less geeky explanation before descending once again into extreme nerdery. It all starts with an explosion that creates a Pyrocumulus Cloud. This ball of burning hot […]

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FACT OR FICTION?: A Young Bill Murray Was Arrested for Carrying 10 Pounds of Marijuana

Among those who use recreational drugs, Bill Murray is something of an icon, having played several pot-smoking characters over the years, including the cannabis-loving sea captain Steve Zissou from The Life Aquatic with Steve Zissou, and noted drug user Hunter S. Thompson in Where the Buffalo Roam. So, was Bill Murray actually arrested for transporting Mary Jane, or was this story just […]

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Native Americans Were Not Introduced to Alcohol by Europeans

It is a sad truth that Native Americans suffer from alcoholism at rates far higher than those of other ethnic groups. While many causes likely contribute to this problem, some of those most commonly espoused, including lack of prior exposure to alcohol and genetic predisposition, are oft-repeated misconceptions. In fact, well before Europeans began to colonize the Americas, Native Americans […]

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Weekly Wrap: Volume 13

This is a weekly wrap of our Daily Knowledge Newsletter. You can get that newsletter for free here. Tang was Not Invented for the Space Program In fact, Tang was actually invented by chemist and occasional playwright William A. Mitchell in 1957 while he was working for General Foods. General Foods introduced Tang to the public in powder form in […]

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Leviathan Files: The Sperm Whale

Immense, stretching up to nearly 70 feet long and weighing over 50 tons, the sperm whale is the seventh largest animal, and the largest with teeth, in the world. Prized for centuries because of its oil and the almost supernatural ambergris it creates, the sperm whale today remains vulnerable. And although we have hunted and studied this leviathan for well […]

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Doctors Aren’t Bound by the Hippocratic Oath

Myth: Doctors are bound by the Hippocratic Oath. A binding agreement, as much a social contract as Social Security or Medicare, the traditional Hippocratic Oath holds those who swear to it to a strict code of professional and personal conduct. Contrary to popular belief, though, most doctors never take this oath, and, actually, most of us are probably glad they […]

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How Did the Cold War Start and End?

Jay asks: When/How did the Cold War start and finish? The Cold War was the geopolitical, ideological, and economic struggle between two world superpowers, the USA and the USSR, that started in 1947 at the end of the Second World War and lasted until the dissolution of the Soviet Union on December 26, 1991. The Cold War was marked by continuous rivalry between […]

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The Legend of the Poe Toaster

On an autumn evening, October third to be exact, in 1849, a middle-aged Edgar Allan Poe was found wandering the streets of Baltimore, Maryland in a delusional, hysterical state. Unkempt, dirty, with “vacant eyes” and in someone else’s clothes, the writer was admitted to Washington College Hospital unable to explain what had happened to him. At five am on October […]

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Why School Buses Are Yellow and Why They Don’t Typically Have Seatbelts

Today I found out why school buses are yellow. An estimated twenty-six million students in the United States alone are transported to school every school day via bus—over half the student population in the country. While school buses in countries outside of North America usually look like any other buses, North American school buses are distinctive for their yellow colour. […]

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