‘Today I Learned’: 40 Curious Things People Didn’t Learn At School (New Pics)

TIL when NASA used electronic computers for the first time - to calculate John Glenn's orbit around Earth - officials called on Katherine Johnson to verify the computer's numbers; Glenn had asked for her specifically and had refused to fly unless Johnson verified the calculations.

TIL Joseph Bazalgette, the man who designed London's sewers in the 1860's, said 'Well, we're only going to do this once and there's always the unforeseen' and doubled the pipe diameter. If he had not done this, it would have overflowed in the 1960's (its still in use today).

TIL Lithuania withdrew from the 1992 Olympics due to the lack of money after the fall of the USSR. The Grateful Dead agreed to fund transportation costs for the basketball team along with Grateful Dead designs for the team's jerseys and shorts. They went on to win the Bronze.

TIL A Scottish woman was sentenced to death by hanging around 1721. Maggie Dickson was hung, declared dead, put in a wooden coffin and carted off. She woke up en route to the churchyard, the law said her sentence had been carried out and she lived another 40 years known as 'Half-hangit Maggie'.

TIL that Majel Barrett, the voice of the Starfleet computer on Star Trek, recorded an entire library of phonetic sounds before she died which allowed her voice to be used as the computer for future generations.

TIL about the Danish Protest Pig. In the early 20th century, Danes living under Prussian rule were banned from displaying the Danish flag. To protest this, they bred pigs with a red and white color pattern similar to their flag. The breed is now called "Danish Protest Pig".

TIL Nicaraguan Sign Language is a sign language that spontaneously developed among deaf children in Nicaragua in the 1980s. It is of particular interest to linguists because it is believed to be to be an example of the birth of a new language, unrelated to any other.

TIL of Diego, a tortoise whose high libido helped save his species. He & E5 (another male) brought the population from 15 to 2,000, and now the species is considered self-sufficient. After 80 years in captivity, Diego is now retired in the Galápagos, where he'll spend the rest of his life having sex.

TIL: Firefighters use wetting agents to make water wetter. The chemicals reduce the surface tension of plain water so it’s easier to spread and soak into objects, which is why it’s known as “wet water.”

TIL on the set of Blade: Trinity, Jessica Biel was supposed to fire an arrow directly at the camera, so the camera was surrounded by Plexiglass except for a 2" x 2" square in front of the camera lens. Biel managed to shoot the arrow through the hole and destroy the $300,000 camera.

TIL Tomohiro Nishikado, creator of Space Invaders, made the entire game himself. Not only was he its designer, programmer, artist, and sound mixer, but he also engineered the game’s microcomputer from scratch.

TIL that at a 1976 Amsterdam chess tournament, Soviet grandmaster Viktor Korchnoi politely asked an English competitor how to spell the words "political asylum." He then went straight to a police station and announced that he wished to defect.

TIL of a brawl involving 50 congressmen on the US House floor in 1858. It ended when someone knocked off a man's wig and the man accidentally put it back on backwards, causing both sides to laugh and stop fighting.

TIL Noninvasive spinal stimulation enables paralyzed people to regain use of hands. A team of scientists reports that six people with severe spinal cord injuries — three of them completely paralyzed — have regained use of their hands and fingers.

TIL a professional security tester named Jayson E. Street, was once hired to attempt to compromise the computers and networks of a bank in Beirut. He succeeded in the compromise and found several exploits, but was soon shocked to discover he had just robbed/hacked the wrong bank.

TIL That a man in horse-drawn carriage was kicked out of KFC drive-through. He then went to a McDonalds and was served a Big Mac without anyone questioning his method of transport.

TIL when pursued, kangaroos will lure the chaser to bodies of water. So they can hold their pursuer under and drown them.

TIL in 1865, Charles Dickens was traveling home from France when his train derailed while crossing a bridge, and his car was left dangling from the tracks. He helped save stranded passengers and then climbed back into the dangling car to find a manuscript he was supposed to send to his publishers.

TIL the idea of black holes was first proposed in 1783 by John Michell, calling them "dark stars" and proposing a method to detect them by looking for star systems that showed the gravitational effects of two stars, but only one star was visible, which is indeed how scientists look for them today.

TIL of Frederick McKinley Jones - an orphaned black American who, in the 1930s when racial segregation was the norm, invented the first successful automatic refrigeration system for trucks. This lead to the development of supermarkets and better combat-zone medical supply.