La cosa e la misura

‘A mass hangs from a spring’, ‘Light is pure energy’, ‘Electric charge flows through a conductor’. In each of these sentences the name of an object is substituted by the name of a physical quantity that describes it. We discuss whether such formulations are justified and show that the first sentence is not inadmissible, the second should absolutely be avoided and the third is indispensable.

Numero: Anno XLII - n.2 - aprile/giugno 2009

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