Hooke's microscope with condenser for concentrating light: left to right above are his Barometer, Refractometer for measuring refractive power of liquids, and lens-grinding machine. From Robert Hooke 'Micrographia' London 1665. Engraving.

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Hooke's microscope with condenser for concentrating light: left to right above are his Barometer, Refractometer for measuring refractive power of liquids, and lens-grinding machine. From Robert Hooke 'Micrographia' London 1665. Engraving.

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Photo credit: © World History Archive / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 1665., archival, archive, barometer, british, concentrating, condenser, english, engraving., historical, history, hooke, instruments, left, lens-grinding, light, light:, liquids, london, machine., measuring, micrographia, microscope, power, refractive, refractometer, robert, scientific