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1 jan 1890 ano - Reflectors were recognized

Descrição:

40 inches was close to the maximum feasible aperture for refracting telescopes. If telescopes with significantly larger apertures were to be built, they would have to be reflecting telescopes.

Adicionado na linha do tempo:

Technology timeline of astronomy

ByHunter
13 fev 2020
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0
204

Data:

1 jan 1890 ano
Agora
~ 135 years ago
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