The Archimedes screw, an ancient Greek invention for lifting water. Learn about its origins, how it works, and its modern ...
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The history of cat domesticationDiscover the history of our feline friends, and learn about the debate over whether cats are really "domesticated" at all.
As for wood, the amount burned for energy today is greater than at any time in history. Overall, burning wood supplies the ...
As emotive as the subject may be, Rot moves beyond sentiment, ideology and the false comforts of denial and denunciation.
It was the best of times, it was the worst of times.” Charles Dicken’s prescient assessment of the French Revolution fits the ...
We traveled to Africa to visit Algeria, where we saw the Sahara Desert, drank foamy tea, ate bread and experienced the change ...
The area’s natural harbor, protected by its naturally-formed peninsula, offered a safe haven for Greek ships. It helped trade ... a crucial colony for the grain trade of the time. It connected the ...
From 6000 BC, the Chinese harvested salt crystals from Lake Yungchen which partially dried in the summer sun. Many other ...
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