For years conventional medicine has told us that high cholesterol levels contribute to heart disease, and as a result, doctors have instructed patients to keep cholesterol levels low – at nearly any cost. Recent scholarship, however, has demonstrated that this all-or-nothing approach to cholesterol and heart disease is short-sighted, and could result in some unintended adverse consequences. Facts Cholesterol (in […]
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During the early years of the Victorian era, an imposing figure dressed in black terrorized the English countryside almost unchallenged. According to eyewitness accounts, this specter had bulging, red eyes, pointy ears and razor-sharp metal claws. He would materialize to attack unsuspecting victims, and when townsfolk gave chase, easily outmaneuvered them by effortlessly jumping over high fences and hedgerows to […]
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Pirates murdered, pillaged, raped, stole, and generally made the lives of others who stood in their way terrible. But despite these facts, books and, more recently, Hollywood have glamorized the “swashbuckler on the high seas.” In the process, a lot of fiction has been attached to the pirate mythos. For example, the rumor that pirates commonly made people walk the plank […]
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Guy C. asks: I live in America and was just wondering how far below and above my land do I own? On paper, the concept of land ownership sounds very simple- you pay money and in return you’re given unfettered access to a predetermined amount of land. But how much of that land do you actually own? Do you own […]
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Moths, beetles and flies all get caught in spider webs, but you almost never see a spider unable to extricate herself from one. Here’s why. The Web When a spider makes an orb web, each line is actually comprised of at least two or more threads, and in fact, the supporting threads, radiating spokes and hub are all made from […]
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On May 18, 1926, Aimee Semple McPherson went for a swim in the Pacific Ocean at Venice Beach. An avid swimmer, Aimee loved to escape from her temple in Echo Park for a quick dip in the ocean. She was dropped off by her secretary, who then left to do errands. When the secretary returned, McPherson wasn’t on the beach […]
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David G. asks: Why do people yawn? Do other animals do this too? Babies, dogs, cats, birds, mice, rats and even snakes yawn, and some of us were even doing it in the womb. Although for thousands of years the reason has remained elusive, recent scholarship may have uncovered the truth as to why we yawn. Physiology of Yawning When […]
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Nathan K. asks: Why is Notre Dame’s slogan “Fighting Irish”? When the green and blue uniformed athletes of the University of Notre Dame run on to the field or court, their fans are rooting for the “Fighting Irish.” Represented by a small green leprechaun- hat tilted with his fists up, ready to fight- the athletic teams of this South Bend, […]
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This is a weekly wrap of our Daily Knowledge Newsletter. You can get that newsletter for free here. Why Does Chemotherapy Make Your Hair Fall Out? Most cells in the human body divide using a process called mitosis. This process has 5 phases (prophase, prometaphase, metaphase, anaphase, and telephase). It is preceded by interphase, and results in the cell dividing, […]
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Kerry asks: Who invented tequila? I was also wondering if they really put worms in it? Although tequila dates back only a few hundred years, people have long used the heart of the agave plant to make delicious, alcoholic beverages. Maguey (Agave) Cultivated from at least as early as 200 A.D. by the Zapotecs of the Oaxaca Valley of southern […]
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A neurobiological disorder that causes its sufferers to make uncontrolled sounds and movements, the symptoms of Tourette syndrome (not Tourette’s) can be so mild that many people who have the condition are not even aware of it. What is Tourette? Like many other psychological conditions, the syndrome is diagnosed after several symptoms have been observed, and they include: At least […]
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On August 23, 1994, Bill Drummond and Jimmy Cauty set fire to, and completely destroyed, £1 million. What makes the story even weirder is that nobody, not even the burners, seems to really know precisely why. The K Foundation Beginning in 1987, under several different names including The Justified Ancients of Mu Mu and The Timelords, Drummond and Cauty produced […]
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Sam asks: What makes snot yellow and green? Snot is an essential part of a healthy body (no, really), and its color and consistency can give you a lot of information about what’s going on in yours at any given time. What is mucus? Produced in the lining of the sinuses, nose, throat, mouth, lungs and even digestive tract, mucus […]
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Marcus asks: Why do songs get stuck in your head? Whether yours is “Call Me Maybe,” “Who Let the Dogs Out,” “Mickey,” or something equally infectious, at one time or another, you’ve probably had a fragment from a catchy (or obnoxious) tune stuck in your head. Where Do Sticky Songs Come From? Due to the involuntary nature of songs getting […]
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Julie H. asks: How do fingerprints form? I’d also like to know if you burn or remove the skin will they regenerate? Emerging on the buds of fingers while the fetus is still in the womb, the whorls, arches and loops on the ends of digits are said to be unique to each individual. Durable as well, even when fingerprints […]
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Despite ethnic, religious, regional and political differences, every now and then people are able to set aside disagreements, look to their common humanity, and make the world a better place. Perhaps one of the greatest and most inspiring examples of such global cooperation has been the eradication of smallpox. The Disease Caused by either of two related viruses, Variola major […]
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Today I found out about the presidents before the U.S. Constitution went into effect. Schools in the United States teach children from an early age that the first president of the United States was George Washington. But teachers often forget to mention a small, kind of important detail- George Washington was the first U.S. president under the current United States […]
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On January 27, 1964, then three-term Senator Margaret Chase Smith put the first crack in the “hardest, highest glass ceiling” when she announced her candidacy for the Republican nomination for President of the United States. Although she never really came close to winning it, Senator Smith’s presidential campaign helped dispel centuries of chauvinism and paved the way for female political […]
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