The New Definition of a Kilogram

Konusu 'Bilim Haberleri' forumundadır ve Honore tarafından 18 Mayıs 2019 başlatılmıştır.

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  1. Honore

    Honore Yönetici

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    "corresponds to the mass of an exact number of particles — a very large number of particles... It is 1.4755214 times 10^40 photons (particles of light) of a particular wavelength, which is that of cesium atoms used in atomic clocks."
    http://news.mit.edu/2019/kilo-standard-change-0516

    The reason for the change: "Over its lifetime, that standard kilo is estimated to have lost about 50 micrograms. A better way was needed."

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