› added 5 years ago

68

TIL That the Ancient Romans sent expeditions into Sub-Saharan Africa in search of gold and spices.

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LkMwZ TIL that the brain doesn't firmly distinguish between physical pain and intense emotional pain. So the same brain networks that are activated when you're burned by hot coffee also light up when you think about an ex who dumped you.
L7Zv TIL the Opportunity rover is still gathering scientific observations and reporting back to Earth after being on Mars for 12 years - nearly 50 times its designed lifespan
jNn7a TIL that the gravity on the ISS is almost the same as it is on Earth. Satellites orbit by constantly freefalling around the Earth, and freefall causes weightlessness.
D1RpP TIL that in 1998, after analyzing the United States' real estate cycle, Georgist economist Fred Foldvary correctly predicted that there would be a recession-causing crash in the housing market in 2008.
9wQxB TIL about the Chinese "Fuxing high-speed train" which is among the world's fastest at 350 km/h (217 mph)