Many centuries before the invention of airconditioning, the Japanese had found a way to sleep peacefully on sweltering summer nights. When other people would be tossing and turning, because of the heat, they would put their arms around their”bamboo wives”. A long cylinder of bamboo basketwork. This simple device allowed air to pass around the sleeper’s body, guaranteeing a good night’s rest.
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Have you ever heard of this device?
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Yes
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No
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