diumenge, 3 de març de 2013

Self-flowing flask (Robert Boyle ; 1627 - 1691)

The larger weight on the left forces water down and around the narrow neck where the weight is less, and then it flows out the orifice at the top to replenish the water in the flask.
It doesn't work with water, apple juice or milk.
It works with coke and with beer.

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