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cieloromero1
20.11.2020 •
Chemistry
If I put 1 pound (454 grams) on my porch steps, how many atoms are on there?
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Ответ:
Arguably, even a flashlight bulb is luminous, because it turns electricity (electrical energy) into light and shines it toward us. ... Photo: Luminous doesn't mean "glows in the dark": it means an object is giving off light it produces itself. Strictly speaking, that means the Sun (1) is luminous but the Moon (2) is not.