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aug 31, 1821 - Гельмгольц

Description:

Внес вклад в развитие акустики и медицины, химии и физики. Так например, он открыл закон сохранения энергии, построил модель уха, изобрел офтальмоскоп.

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By Ефим
2 Dec 2018
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Date:

aug 31, 1821
Now
~ 205 years ago

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