Heliostatic mounting, hinge bracket with square pl

Made:
1795-1805

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Heliostatic mirror. (This was origially recieved from Prof. A.P. Herschel. It was decided in 1891 that the object was
Science Museum Group Collection
© The Board of Trustees of the Science Museum

1876-951: Glass prism, mounted at the end of brass tube, used by Sir William Herschel in experiments on the thermal
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Heliostatic mounting, hinge bracket with square plate with rotating aperture, mounted with oval, flat speculum mirror. Used by William Herschel in the first investigations of the solar spectrum beyond the visible region, when he discovered infrared radiation (See note)

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Details

Category:
Optics
Object Number:
1876-566
Materials:
brass (copper, zinc alloy), bronze (copper, tin alloy), copper (alloy), iron, speculum metal, wood (unidentified)
credit:
Mr. J. Herschel-Shorland.
status:
Permanent collection

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