› added 5 years ago

67

TIL turtles are not INSIDE their shell, they ARE their shell!

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e0eLL TIL Gold is almost twice as dense as Lead. Even though a molecule of lead weighs more than a molecule of gold, gold molecules are smaller, and the density of gold (19.3g/cc) is almost twice that of lead (11.3g/cc)
od98 TIL that Angkor used far greater amounts of stone than all the Egyptian pyramids combined, and occupied an area greater than Paris. Unlike the Egyptian pyramids, which used stone quarried from only 0.5 km (0.3 mi) away, the entire city of Angkor was built with stone quarried over 35km (22 mi) away
R7yNw TIL that Agatha Christie wrote the final Hercule Poirot book "Curtain" in the 1940s, fearing she might die during the blitz and leave the book series without a proper ending. She kept writing more books after that, and once she decided she was done "Curtain" was finally published in 1975.
d8RdB TIL lake Baikal has a surface area slightly larger that the state of Maryland, yet it’s depth and volume is so great it could cover the moon is 2 feet of water.
LQEJ0 TIL that The development of the first eyeglasses took place in northern Italy in the second half of the 13th century