Mention414149

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so:text The quantity of force which can be brought into action in the whole of Nature is unchangeable, and can neither be increased nor diminished. (en)
so:isPartOf https://en.wikiquote.org/wiki/Hermann_von_Helmholtz
so:description Popular Lectures on Scientific Subjects (1881) (en)
qkg:hasContext qkg:Context203766
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qkg:Quotation391917 qkg:hasMention
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