F3350

Prisms Long Caption: Three plain glass prisms in wooden box with sliding lid. These prisms are likely to have been bought by William Herschel or possibly made by either William or his brother Alexander, while William was carrying out experiments on the nature and temperature of light. Credit line: © National Maritime Museum, Greenwich, London Object: AST0901 Artist: unknown Date: circa 1800 Medium: glass; wood Size: 38 mm x 133 mm x 38 mm Click here to buy a bespoke print of this image.