Eclipse of 1664 (British Library 1875.d.4)"Whosoever desyres to see the Sun eclipsed without hurting their eyes: Let them beholde the shadow therof in a vessel, wherin oyle is put: Where, they may beholde and see it without daunger. For a fatty...
How to Watch an Eclipse Safely, 1579 and 1658
tháng 8 20, 2017
16th century, 17th century, astronomy, eclipse, fatty humors
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