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TIL the call of the paradise riflebird is “yaaaaasssss”.

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4kRyJ TIL the screw thread is believed to have been invented around 400 BCE, by Archytas of Tarentum, a Greek philosopher sometimes called “the father of mechanics.” The general principle of the screw was applied early on, in cities like Pompeii, to extract olive oil and grape juice
Wkp0X TIL jellyfish will almost disappear if left out in the sun. Because they're 98% water, they mostly evaporate into thin air
84wZ TIL living near coal-fired power stations exposes people to higher radiation doses than living near nuclear plants
PY4yE TIL That under Saddam's Iraq the Christian Minority was treated no worse equally to the Muslim population and only killed when against Saddam (The Assyrians) In fact Tariq Aziz an Iraqi-Christian even became a close advisor to Saddam.
jwkR TIL that an extinct bird called Rodrigues Solitaire had strange knob-like balls on its wings. These balls were used by the bird as a deadly weapon to defend territory and its mate, and made a noise like thunder in the distance