![]() Hardtmuth Company introduced its new brand of pencils, the Koh-I-Noor, named after the famous diamond. Only the royal family was allowed to wear the color which eventually became a symbol of happiness, wisdom, and glory. Because of this, the color yellow has long been connected to royalty. The Yellow Emperor, also known as the “Yellow God,” is the third of ancient China’s mythical emperors. So, the sole of your sneaker is made up of just one molecule. ( source) 8 When rubber is vulcanized, all the molecules become connected through sulfur and turn into one giant molecule. Dubner, bad breath wasn’t considered such a catastrophe until then. According to the book Freakonomics by Steven D. They pitched it as a cure for “chronic halitosis,” a medical term that most people were unfamiliar with, and the advertising was directed mostly at young women and men. Though Lambert began promoting the product for oral care in 1895, it wasn’t until the 1920s following aggressive marketing campaigns that it became famous as a mouthwash. He hoped to promote it as a general germicide and collaborated with pharmacist Jordan Wheat Lambert who started the Lambert Pharmaceutical Company to manufacture it.Īt first, Listerine was sold a cure for gonorrhea and a floor cleaner. Louis, developed a formula which he named “Listerine” in honor of Lister. Following that, Joseph Lawrence, a doctor from St. In 1865, an English doctor named Joseph Lister demonstrated that using carbolic acid on surgical dressings reduced the chances of infection significantly. Image Source: Britta Gustafson/Flickr, The Ladies’ Home Journal/Wikimedia Commons This is why doughnuts became associated with the police as the shops were a perfect place to take a break, grab a snack, or even fill out paperwork during the night shift. ( source) 6 In the 1950s, doughnut shops were among the only few eateries open late into the night. They managed to take the X-ray of one of the postdoc’s fingers on a dental X-ray film. It was first observed by Soviet scientists in 1953, and the generation of X-rays was further studied in 2008 by a team of researchers at the University of California, Los Angeles, led by physicist Seth Putterman. The same thing happens when a pressure-sensitive tape such as Scotch tape is pulled away from the roll in a vacuum. Diamonds also fluoresce blue or red sometimes when rubbed, ground, or sawed, and minerals like quartz emit light when rubbed together. This optical phenomenon is known as “triboluminescence.” It can be observed when you bite on a Wint-O-Green LifeSavers candy in the dark as the wintergreen oil, which is fluorescent, converts ultraviolet light into blue light. When ripped, scratched, or crushed, some materials generate light as the chemical bonds break and the electrical charges are separated and reunified. The Eldredge knot or Trinity knot, which the mathematician himself uses every day, requires the same number of winding moves. Instead of eight winding moves, Vejdemo-Johansson chose 11 moves. He became interested in this tie-knotting business after watching a YouTube tutorial on replicating the intricate, exotic-looking knot worn by the Merovingian as shown in The Matrix Reloaded film. Later, another mathematician, Mikael Vejdemo-Johansson from the KTH Royal Institute of Technology, Stockholm, Sweden, put the number at 177,147. They also put a limit on the number of winding moves at eight. However, they made the calculations under two main assumptions – that you would only tuck at the end of all the folding, and that all knots would be covered by a flat stretch of the tie fabric. In 1999, two mathematicians, Thomas Fink and Yong Mao from the University of Cambridge, calculated the number of knots that can be used for men’s neckties was 85. Image Source: Irelocus, Bumpinthenight42, Irelocus, Irelocus/Wikimedia Commons ( 1, 2) 2 Barcode scanners don’t scan the black lines in the barcode. Crayola has issued a statement that they do not recommend it as crayons were not tested or approved for such use. Some DIY-ers even use them as pigment for making candles. The paper wrapped around the crayon works as a wick, and it can burn for around 15 minutes. Several DIY bloggers a few years ago began writing about how they can be used as a candle when you don’t have one. Modern crayons are made of paraffin wax and pigment. Crayons are believed to have their origins in the European practice of mixing charcoal and oil to make cylindrical-shaped pieces that could be held in the hand. The earliest concept of crayon dates back to a thousand years ago when artists would combine pigment with beeswax and burn it to fix an image in place, a technique known as “encaustic painting.” This method was widely used by Egyptians, Romans, Greeks, and even some indigenous people of the Philippines.
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