Record

RefNoAP/66/17/2
LevelItem
TitleUnpublished diagram, 'Diagrammatic representation of the apparatus employed in the experiments' by Edmund Johnson Spitta
CreatorSpitta; Edmund Johnson (1853-1921); British astronomer
Date1889
DescriptionA plan of the equipment used in Spitta's experiments on the sine law of Malus. A lamp shines through a slit attached to a collimator, directed towards a double image prism in front of a screen. Behind the prism are a photometer, a large Nicol's prism, a corrected lens in front of a small diaphragm, two prismatic glasses and a wooden support 'carrying the paper screen for the projection of the images.'

Subject: Optics / Scientific apparatus and equipment
Extent1p
FormatDiagram
Typescript
PhysicalDescriptionInk on paper
AccessStatusOpen
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