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23

TIL that increasing the wind speed by 2x increases the wind power available by 8x

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oga8 TIL Cliché comes from the sound made when plates with commonly used words or phrases were fitted into a printing press. These plates were called stereotypes.
6ELMW TIL there are 4.7 million dog bites in the US each year, and 800,000 of those bites result in medical care. That means a dog bites 1 out of every 69 people.
KOBD9 TIL of "fruit walls". Used before greenhouses, fruit walls stored the heat from the sun and released it at night which created a microclimate that could increase the surrounding temperature by more than 10°C (18°F).
ADxWa TIL of the Mingun Bell, the heaviest functioning bell in the world until 2000.
9YlYB TIL that some poison dart frogs secrete a painkiller called epibatidine. Epibatidine is 200x more potent than morphine and is nonaddictive, but has a therapeutic dose that is dangerously close to its lethal dose