In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
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A Swiss man replaced his car's broken heater with a fully functional wood burning stove.
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Mico headphones read your brainwaves and select music based on your state of mind.
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A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
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