An instrument comprising four lightweight metal vanes, black on one side and white on the other, mounted on a spindle inside a partially evacuated…
单词 | θ75881 |
释义 | the world > matter > physics > mechanics > dynamics > thermodynamics > [noun] > instrument illustrating principle (3) radiometer1875 An instrument comprising four lightweight metal vanes, black on one side and white on the other, mounted on a spindle inside a partially evacuated… Crookes radiometer1884 Used attributively or in the possessive to designate phenomena observed and apparatus invented by Crookes. Crookes space n. also Crookes dark space… Subcategories:— use of (1) |
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