› added 5 years ago

170

TIL the Appalachian Mountains span three countries—the United States, Canada, and France

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KrlJ TIL despite being worth an estimated $8.3 billion there is no public record of Steve Jobs giving money to charity. He declined to participate in the Giving Pledge founded by Warren Buffett and Bill Gates
7kkr TIL that a team of Danish comedians went to North Korea to mock them, using the cover of being Danish a culture exchange group and they got away with it and made a movie.
5Yp4r TIL about Katie Bouman, a computer scientist who at the age of 29 led the development of an algorithm for imaging black holes known as Continuous High-resolution Image Reconstruction using Patch priors (CHIRP). In April 2019 the first ever image of a black hole was acquired.
loQMr TIL: The US has had the largest economy in the world since 1871. Accounting for just 5% of the worlds population, the US represents 23.6% of the worlds GDP, China has grown to 15.5% and third place Japan at 5.7%
W7jLN TIL the cracking sound created by a bullwhip is a sonic boom, the sound created when an object moves faster than the speed of sound. The whip is most likely to be the first faster-than-sound manmade item.