In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
13
Pierre Jaquet-Droz, a watchmaker, 240 years ago invented a robot that could write, and the parts could be interchanged to say whatever you want.
13
Holding hands with someone you love can alleviate physical pain as well as stress and fear.
26
Super Nintendo and Sega Genesis had an online multiplayer mode.
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Sweden is so good at recycling, it has run out of garbage and now must import garbage from Norway to fuel its energy programs.
20