In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
13
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
The Savannah is the largest domestic cat breed. It resembles a small leopard and behaves like a dog. They can grow up to 40 lbs, have an eight foot vertical jump, and can be trained to walk on a leash and play fetch.
17
There is a growing sport in Berlin and London called Chess Boxing. Players alternate between a round of chess and a round of boxing until one is declared winner either by checkmate, KO, or technical stoppage.
8
In Japan, watermelons are grown into the shape of a square so they are easier to stack and transport.
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