› added 7 years ago

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TIL the deadliest fire in US history, the Peshtigo Fire is largely forgotten because it happened on the same day as the Great Chicago Fire.

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via reddit.com

nWKad TIL Humans can create rain by adding silver iodide, potassium iodide, and dry ice to clouds. It's called cloud seeding and it's been around since 1946.
XN8R TIL that a famous study – showing that people supposedly do better on “trick” questions when printed in a blurry font, which makes them concentrate – was debunked as an artifact of small sample size. (The study was cited in Nobel-Prize-winner Daniel Kahneman’s book “Thinking Fast and Slow.”)
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