Tag - water

Science

Why do we sweat?

Sweat is produced by dedicated sweat glands, and is a mechanism used primarily by the body to reduce its internal temperature. There are two types of sweat...

Tech

How do kettles boil water?

The electric kettle works thanks to two design breakthroughs achieved in Britain in the Twenties and Thirties. The fi rst is the immersed heating resistor, the...

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