Планкийн тогтмол: Засвар хоорондын ялгаа
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Шинэ хуудас: thumb|right|A commemoration plaque for [[Max Planck on his discovery of Planck's constant, in front of [[Hum... |
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Мөр 7:
[[Category:Түүхий]]
[[Category:Физик]]
[[en:Planck constant]]
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