› added 3 weeks ago

5

TIL Fire doesn't actually ignite materials, it just makes them reach their self combustion temperature

Read more science.howstuffworks.com

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7rLrX TIL: The demand for Star Wars merchandise was so unexpected that none of the action figures were ready for Xmas 1977, forcing the manufacturer to instead release an empty cardboard box as a display diorama for the upcoming toys. The boxes now sell for $4,000 to $8,000 each on the collector's market.
N7obQ TIL Scientists track solar cycles by counting sunspots. A high-powered telescope might show 10 or 20 and a powerful observatory may see 50 to 100, so there is a formula for the official sunspot number, R=k (10g+s)
GyO1 TIL Bald Eagles’ nests are enormous. One nest in Florida was found to be 6.1 m (20 ft) deep, 2.9 meters (9.5 ft) across, and to weigh 3 short tons (2.7 metric tons).
WLZN TIL Cher is the only artist to have a Billboard number one hit in each of the past 6 decades
A7Q4 TIL Presidential Memo’s suggest FDR did lure Japan into attacking the USA