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The first optical telescope was built in the Netherlands around 1608. Galileo improved the design and used it to discover Jupiter's moons and study the Moon's surface.

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The idea in context

The first optical telescope appeared in the Netherlands around 1608. Galileo improved it and turned it skyward — and what he saw ended the idea that Earth sat at the centre.

Türkçe

Aynı kart, başka bir dilde.

İlk optik teleskop yaklaşık 1608'de Hollanda'da yapıldı. Galileo tasarımı geliştirdi ve Jüpiter'in uydularını keşfetmek ile Ay'ın yüzeyini incelemek için kullandı.

İlk optik teleskop, 1608 dolaylarında Hollanda'da ortaya çıktı. Galileo onu geliştirdi ve göğe çevirdi — gördükleri, Dünya'nın merkezde durduğu fikrini sona erdirdi.

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Background reading: Galileo GalileiAttribution and context are revised when stronger evidence appears. Corrections are welcome through the editorial page.
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