로열티 프리 Magdeburg Hemispheres By Otto Von Guericke, 1654, Published In 1877 프리미엄 스톡 벡터

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With the Magdeburg hemispheres Otto von Guericke (1602 – 1686) demonstrated in 1654 at the Imperial Diet in Regensburg, the effect of air pressure and proved the existence of the Earth's atmosphere. Wood engraving, published in 1877.