Discovered independently by German mathematicians August Möbius and Johann Listing in 1858, the Möbius strip is a continuous one-sided surface formed by rotating one end of a rectangular strip 180° and attaching it to the other end. If cut down the center, instead of two new strips, only one long one is produced. Because these strips effectively double surface area, they have practical applications as conveyor belts, continuous-loop recording tapes, and ribbons used in what kind of machines?
In every gesture dignity and love.
Back in the day
In 1931, American aviator Wiley Post flew around the world with navigator Harold Gatty in 8 days, 15 hours, and 51 minutes, breaking the previous record of 21 days. They published an account of their trip in Around the World in Eight Days. Two years later, Post became the first person to fly around the world alone, a feat he completed in just 7 days and 19 hours. Post died in 1935 when his plane crashed in Alaska with what famous entertainer on board?
Born on a day like today
Waksman was a Russian-American biochemist and microbiologist whose study of organic substances and their decomposition led to the discovery of the antibiotic streptomycin. His four decades of research at Rutgers University in New Jersey led to the discovery of more than a dozen "antibiotics," a term for antibacterial microbial metabolites he coined in 1941. In 1952, he was awarded the Nobel Prize in Physiology or Medicine for his discovery of streptomycin and its value in treating what disease?