hist-brewing: Hydrometers

[Eric George]

allotta at earthlink.net wrote:

>>OxladeMac at aol.com wrote:
>>> Anyone know about when hydrometers were invented?
>>
>>Mid 1800's?????????

>I recall seeing mention that it more like 3000 BC.

The *priciple* of buoyancy was discovered by Archimedes around this time,
but I don't think it was used for any practical purposes at the time.

Eric George


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