Bøger af J. Wm. McGowan
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1.015,95 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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- 1.015,95 kr.
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576,95 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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- 576,95 kr.