Bøger af J. Wm. McGowan
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989,95 kr. The first instruments to expand the observational range of the human eye were simple optical systems, designed in the case of microscopes and telescopes to magnify the image.
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- 989,95 kr.
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573,95 kr. The first instruments to expand the observational range of the human eye were simple optical systems, designed in the case of microscopes and telescopes to magnify the image.
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- 573,95 kr.
