We have no meanings for "evacuated glass" in our records yet.
1 It's not clear if his new radiometer - an evacuated glass bulb with a very sensitive weather vane inside-actuallydetected Philip.
2 We make the-thing, in an evacuated glass tube, but as they are cheap, it is not an expensive procedure.
3 His interests, however, were varied, and he decided In 1860 to make an electric light using a carbon filament inside an evacuated glass chamber.
4 Named after its inventor, you know who, the Crookes tube consisted of an evacuated glass bulb with two metal plates inside at either end.
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