› added 4 years ago

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TIL that it takes only 8-minutes for sunlight to reach the Earth, but can take up to 170,000 years for it to travel from the Sun's core to its surface. This is because the photons travel in a nonlinear path known as a random walk process - looks pretty similar to a convoluted zig zag.

Read more sunearthday.nasa.gov

via reddit.com

Z8yLB TIL that Sir Isaac Newton kept a detailed list of all the sins he committed up until the age of 19.
Brner TIL that Arizona, despite have triple-digit temperatures for six months of the year, is actually one of the most energy efficient States in the US; AZ ranks 45th out of 50 states for per-capita energy consumption (a combination of residential/commercial/industrial/transportation energy consumption).
awkOZ TIL: The "tradition" of spending several months salary on an engagement ring was a marketing campaign created by De Beers in the 1930's. Before WWII, only 10% of engagement rings contained diamonds. By the end of the 20th Century, 80% did.
Y77oB TIL about Delhi’s Sabharwal family has got the rare distinction of being the only family where every single member is a doctor for the past five generations.
4koXo TIL that despite stating multiple times that he didn't want to be nominated for President, Horatio Seymour was still nominated for President in 1868.