Vacuum gap between glass walls e GPS (satellite navigation): o que têm em comum

1. Passo 1. Vacuum gap between glass walls — faz parte de — Vaso de Dewar. It does not conduct heat.
2. Passo 2. Vaso de Dewar — evoluiu para — Vacuum flask. A household Dewar flask.
3. Passo 3. Vacuum flask — tem como parte — Mirror. The silvering reflects heat radiation.
4. Passo 4. Mirror — faz parte de — Interferometer. Mirrors.
5. Passo 5. Interferometer — inspirou — Theory of relativity. The Michelson–Morley experiment found no ether.
6. Passo 6. Theory of relativity — é utilizado em — GPS (satellite navigation). Corrections for the relativistic slowing of clocks.

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