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An otheoscope Size:L: 80 x 60cm View of Chartwell House in

SKU 57798630155
4.3
An otheoscope Size:L: 80 x 60cm View of Chartwell House in
An otheoscope Size:L: 80 x 60cm View of Chartwell House in
An otheoscope Size:L: 80 x 60cm View of Chartwell House in
An otheoscope Size:L: 80 x 60cm View of Chartwell House in
Description

View of Chartwell House in Kent

yer honour-r

two of the new iron-clad men of war ships

the print is embossed 'Charles Spencer

An otheoscope Size:L: 80 x 60cm View of Chartwell House inAn otheoscope with fixed vanes of oxidised copper and coloured disc above it. An instrument designed for measuring the mechanical effect of radiant energy, a modification of the radiometer. Mounted in a partial vacuum, the central rotor spins when the vanes are exposed to light. Chemist William Crookes (1832 1919) initially believed the vanes with black surfaces were pushed around by pressure from light radiation. This was incorrect and other theories

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