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Galileo's theories of observations, 'Il Saggiatore' (1623)

Galileo's theories of observations, 'Il Saggiatore' (1623)

C046/0704

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25.7 MB (2.3 MB compressed)

2531 x 3543 pixels

21.3 x 30.0 cm ⏐ 8.4 x 11.8 in (300dpi)

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Credit

LIBRARY OF CONGRESS, RARE BOOK AND SPECIAL COLLECTIONS DIVISION / SCIENCE PHOTO LIBRARY LIBRARY OF CONGRESS, RARE BOOK AND SPECIAL COLLECTIONS DIVISION / SCIENCE PHOTO LIBRARY

Caption

Galileo's theories of observations from 'Il Saggiatore' (1623, 'The Assayer'). This work by Italian astronomer Galileo Galilei (1564-1642), was about comets and contained treatises on natural philosophy and mathematics. The illustration on this page shows the optics of a human eye observing a candle flame, with the accompanying text talking about observations made of stars using a telescope.

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