1Blue LED Lights
The 2014 Nobel Prize in physics was awarded to the three men who invented the blue LED. Until their discovery in the 90s, white LED lights couldn't be produced.
2. In 1927, a school board treasurer in the Bath Township in Michigan got angry over a property tax increase and spent most of the year sneaking hundreds of pounds of dynamite and pyrotol into the new school building. The resulting detonation at the first school bell killed 38 children. Earlier that day he killed his wife.
3. Pork butt is not the rear end of the pig. It's the shoulder. The pork shoulders were named after the barrels they used to be kept in, which were called butts.
4. The soundproofing of the new Rolls-Royce Ghost was so over-engineered that occupants in the car found the near-total silence disorienting, and some felt sick. Acoustic engineers had to go back and work on "harmonizing" various sounds in the car to add a continuous whisper.
5. After 5 Tamil chiefs defeated the Sri Lankan king Valagamba in 103 B.C., one of them became king but was eventually slain by another, who also became king before being slain by another, and so on until only one remained. Then Valagamba returned, slew the last one and took back his throne.
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6Kriegspiel
Kriegspiel is a chess variant where each player can see their pieces, but not those of their opponent. Players attempt to move on their turns and the umpire declares their attempts 'legal' or 'illegal.' If the move is illegal, the player tries again; if it is legal, that move stands.
7. NASA logo merchandise has been seeing growing demand since 2017 when luxury fashion brand Coach asked permission to use NASA's 1970s-designed, retro red logotype for its collection and then approval requests doubled. NASA doesn't make a cent off merchandise bearing its name.
8. Most US commercial radio stations east of the Mississippi river start with the letter 'W' and west start with the letter 'K.' By law, these call signs must be announced at every top of the hour.
9. During the construction of the Golden Gate Bridge an earthquake struck it in 1935. A dozen workers were trapped on top of one of the towers, swaying 16 feet back and forth, while their coworkers were throwing up on the deck.
10. Potassium's main role in the body is to help maintain normal levels of fluid inside our cells whereas sodium maintains normal fluid levels outside of cells. Potassium also helps muscles to contract and supports normal blood pressure.
11Mud Dauber Wasps
Mud Dauber Wasps reproduce by building tubular nests out of mud, then going out and gathering spiders by paralyzing them then sealing them inside the nest with an egg. The offspring will then consume the paralyzed spiders when it hatches.
12. The consumption of soil in sub-Saharan Africa is common, primarily among pregnant women (ranging from 30% to 80% depending on the country). The soil is mostly air-dried, but can also be baked, smoked, salted, or mixed with herbs or water and the soil from termite mounds isn't sour.
13. Beauty Parlour Stroke Syndrome is an extremely rare phenomenon that describes a stroke caused by having your hair washed over a basin at a salon. It is thought to be the result of reduced blood flow to the brain caused by the sustained distortion of the neck during the washing process.
14. Portraits of presidents were not depicted on the official currency of the USA until the beginning of the 20th century. The first dollars had the figures and faces of the characters of Greek and Roman mythology and even pictures with the participation of Native Americans appeared on the money.
15. When King William II organized a hunting trip in 1100, he was presented with six arrows. He took four for himself and handed the other two to Tirel, saying, "Bon archer, bonnes fleches." ("[To the] good archer, the good arrows.") It was the last time that William was seen alive.
16Prince Carl of Denmark
After the peaceful dissolution of Sweden-Norway, the Norwegian legislature asked Prince Carl of Denmark to become King of Norway. In 1905, he asked that the Norwegian people to vote on a proposal on whether to remain a monarchy. He was crowned King of Norway after 79.8% of voters approved the proposal.
17. Movies made in France can access a tax rebate (worth up to 40% of spend) if the movie passes a Cultural Test, which awards points if at least one main character is "of a nationality that cannot be determined". More points are given for sets being "symbolic of France."
18. The Royal Air Force and the United States Air Force dropped 3,316,000 magnesium incendiary bombs on Munich alone during World War 2. That’s about 4 bombs for every inhabitant.
19. Project plowshare was once a US program whose purpose was to find peaceful uses for nuclear weapons including excavating dig sites using nuclear weapons.
20. During the ‘Degenerate Era’ of the universe, the stars in our universe will run out of fuel, and the starry night sky we see today will no longer exist. Aging stars and stellar remnants will be too cold to support life. It is hypothesized to happen about 1 quintillion years after the Big Bang.
21Napoleon III's Paris Renovation
During the 19th century, Paris was characterized by tight winding streets and small thin buildings that Voltaire said were suitable for Goths. Under Napoleon III the city had massive renovations that widened the streets and created large apartment buildings.
22. A fluorocarbon called perfluorohexane has enough oxygen and carbon dioxide inside it with enough space between the molecules that animals submerged in the liquid can still breathe normally.
23. The official rules of Ping Pong allow the ball to touch your paddle hand, which includes all fingers and the hand area below the wrist. Players however are not allowed to touch the ball with a non-paddle hand for any reason.
24. ASCII is a character encoding standard for electronic communication. In 1968, president Lyndon B. Johnson mandated that all computers purchased by the United States Federal Government support ASCII. It remained the most common character encoding on the World Wide Web until 2007.
25. Alan Menken, the composer responsible for "Disney Renaissance" soundtracks like Little Mermaid, Aladdin, Beauty, and the Beast, etc. wrote a song exclusively for the Japanese Disney-Sea ride "Sinbad's Storybook Adventure" and it's only ever been officially released in Japanese.
