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Radiometer containing a double set of vanes

Radiometer containing a double set of vanes

1876-1895
Crookes' radiometer with four aluminium vanes coated on one side with clear mica (No. 4)

Crookes' radiometer with four aluminium vanes coated on one side with clear mica (No. 4)

1878
Crookes' Radiometer, 1872-1879

Crookes' Radiometer, 1872-1879

1872-1879
Crookes' Radiometer, 1872-1879

Crookes' Radiometer, 1872-1879

1872-1879
Crookes' Radiometer, 1872-1879

Crookes' Radiometer, 1872-1879

1872-1879
Crookes' Radiometer, 1877

Crookes' Radiometer, 1877

1877
Crookes' Radiometer, 1872-1879

Crookes' Radiometer, 1872-1879

1872-1879
Crookes' Radiometer, 1872-1879

Crookes' Radiometer, 1872-1879

1872-1879
Crookes' Radiometer, 1877

Crookes' Radiometer, 1877

1877
Crookes' Radiometer, 1872-1879

Crookes' Radiometer, 1872-1879

1872-1879
Crookes' Radiometer, 1872-1879

Crookes' Radiometer, 1872-1879

1872-1879
Crookes' Radiometer, 1878

Crookes' Radiometer, 1878

1878
Crookes' Radiometer, 1872-1879

Crookes' Radiometer, 1872-1879

1872-1879
Crookes' Radiometer, 1876

Crookes' Radiometer, 1876

1876
Crookes' Radiometer, 1872-1879

Crookes' Radiometer, 1872-1879

1872-1879
Radiometer used to illustrate Sir William Crookes' researches on the radiation of heat in high vacua: pith-ball balance in air (the balls are attracted if a flame is brought near), 1872-79.

Crookes' Radiometer, 1872-79

1872-1879
Radiometer used to illustrate Sir William Crookes' researches on the radiation of heat in high vacua: radiometer with semi-cylindrical vanes, 1872-79.

Crookes' Radiometer, 1872-1879

1872-1879
Crookes' type radiometer, with single, semi-cylindrical aluminium vanes (No. 20), London, England, 1876-1895 (see note).

Crookes' Radiometer, 1876-1895

1876-1895