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prisms

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[Diagram of experiment with prisms that led Newton to conclude light is a mixture of differently refrangible rays; with surrounding text]

[Diagram of experiment with prisms that led Newton to conclude light i...

Illus. and text in: A letter ... containing his new theory about light and colors / Isaac Newton. In Royal Society of London. Philosophical Transactions, vol. 6, Feb. 1672. Published in: The tradition of scienc... More

[The machinery for making prisms at the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.

[The machinery for making prisms at the Imperial Gunpowder Factory] / ...

Title translated from album caption. Captioned in Ottoman Turkish and French. No. 48. Photograph taken by the Imperial School of Engineering Photography Unit. (Source: Imperial self-portrait: The Ottoman Empir... More

[The machinery for making prisms at the Imperial Gunpowder Factory] / the photograph studio of the Imperial School of Engineering.

[The machinery for making prisms at the Imperial Gunpowder Factory] / ...

Title translated from album caption. Captioned in Ottoman Turkish and French. No. 49. Photograph taken by the Imperial School of Engineering Photography Unit. (Source: Imperial self-portrait: The Ottoman Empir... More