› added 5 years ago

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TIL that many of the velociraptor sounds in Jurassic Park were actually distorted recordings of tortoises mating

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via reddit.com

4XkMJ TIL that water towers provide water pressure based on their height and don’t just hold water.
LWLV TIL an art group designed and released 3D printing models for interconnecting Lego, K'Nex, Duplo, Lincoln Logs and more, allowing any piece to join to any other.
4kkZN TIL: no one has accurately measured the speed of light (C) in one direction
69g4X TIL abou Fritz Haber, a Jewish German chemist who discovered the mass synthesis of Ammonia as fertilizer. He later aided Germany in WW1 by discovering Nitrogen explosives, weaponized Chlorine gas and early versions of Zyklone gas.
epkoJ TIL fine particles of dust can explode and rapidly combust, even innocuous objects like flour or corn starch, due to the very large surface area of dust relative to its mass. One incident at a "color party" throwing colored corn starch resulted in 15 dead and 498 suffering from burns.