Archimedes estimated the value of pi with a polygon in a circle in a polygon. He made the diameter of the circle to 1, so the circumference was pi. With the circle's diameter, he found the perimeters of the polygons. Therefore, the value of pi (the circle's circumference) is in between them.
27. 'Brinicle' is a super concentrated sea salt that falls from forming sea ice sheets. The falling salt has a much lower freezing point than water so it instantly freezes all water it touches and kills any living thing it touches.
28. During the start of Operation Good Hope in 1994, United States military forces were supposed to land on the beaches of Mogadishu under the cover of darkness, to provide immediate relief for the refugees of the Rwandan genocide. Instead, they were met by CNN who was covering the landing live on television.
29. Two weeks before the Castle Gate Mine disaster of 1924 that killed 171 men, the Utah Fuel Company laid off many of the miners without dependents during a shortage of coal sales. As a result, 114 of the men killed in the disaster were married men and left behind 415 widows and children without fathers.
30. John F. Kennedy, 2 months before his presidency, was almost assassinated by a man named Richard Paul Pavlick who planned on driving a dynamite-laden car into JFK’s car. He didn’t go through with his plan because he saw Jacqueline and the couple's two small children bid goodbye to Kennedy, which changed his mind.
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15 Most Controversial & Costly Blunders in History
While imprisoned for murdering 7 people in Australia, Ivan Milat "The Backpacker Killer" cut off his little finger with a plastic knife in 2011 in order to send it by mail to the High Court of Australia.
32. Michael Jackson worked with Stephen King to create a short film called ‘Ghosts.’ It set the world record for the longest music video at 40 minutes and centered around Michael Jackson as a rich recluse in a town where the adults try to run him out and he ends up being saved by children.
33. The term Peanut Gallery came from Vaudeville days when the audience in cheapest and rowdiest seats in the theater often ate peanuts and sometimes threw them at the performers.
34. Most vodkas in the US are pretty much the same, with no distinctive character, aroma, taste, or color.
35. 17th-century Italian biologist Francesco Redi found that tortoise's brains are so small and irrelevant that when he surgically removed them, they could continue to live for up to six months. When he entirely decapitated one, it still lived for 23 days.
36HNLMS Abraham Crijnssen
The Dutch naval ship HNLMS Abraham Crijnssen was ordered to return to Australia after a Japanese ambush during World War 2. To avoid another ambush, the crew camouflaged the ship with jungle foliage to disguise it as a small island and it traveled only at night. It was the only ship of its class to successfully arrive.
37. There is a satellite named STRaND-1 in orbit that is operated by two computers: one is the classic CubeSat computer and second is a Google Nexus One smartphone running the Android operating system.
38. Salem Poor was a slave who purchased his freedom and fought in the Battle of Bunker Hill. His actions earned him the praise of 14 officers who called him “a brave and gallant soldier.”
39. Stephen Fry was under criminal investigation in 2017 for blasphemy, for his comments made on the show 'The Meaning of Life.'
40. There are 18 different forms of ice, that have completely different structures from one another, and occur at very different temperatures and pressures than "regular" ice.
Prince Philip, the husband of Queen Elizabeth, was born into both the Danish and Greek Royal Families and is the oldest ever male member of the British Royal Family at the age of 96. He retired from royal duties last year after completing 22,219 solo engagements since 1952.
42. Operation Flagship was a sting operation that sent out free Washington Redskins tickets to wanted fugitives and resulted in more than 100 arrests with Marshalls wearing Redskins and Chicken costumes.
43. Atheist churches exist and they're styled after Mega Churches in the United States. Located in places like Dublin, Sydney, and New York, they are places for Atheists to replicate the Church experience.
44. In 2000, Coca-Cola launched a campaign against water called H2NO, in which the program taught waiters how to use "suggestive selling techniques" to offer a variety of alternative beverages when diners asked for water.
45. The word ‘grenade’ comes from the French word for pomegranate whose outer appearance and seeds resemble a grenade and its fragments.