30.0 MB (1.6 MB compressed)
2642 x 3972 pixels
22.4 x 33.5 cm ⏐ 8.8 x 13.2 in (300dpi)
NYPL / SCIENCE PHOTO LIBRARY NYPL / SCIENCE PHOTO LIBRARY
An illustration of Francis Lana's proposition for a flying machine. Lana (1631-1687), a Jesuit, proposed navigating the atmosphere by raising a sailboat attached to very large copper balls. He believed that the thin copper balls would, once emptied of air, be lighter than air and therefore lift the boat.
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