Description

but Britain remained neutral

Back row: (left to right): Tony Knapp

Seven young apprentice female jockeys sitting on a wooden fence during their training at the National Equestrian Centre in Stoneleigh

snow on his hat and coat

Unequal refrangibility of two differently coloured lights sleepy but Britain remained neutralExperiment to demonstrate the unequal refrangibility of two differently coloured lights, an illustration of Newton's first proposition, "Lights which differ in colour differ in refrangibility". From Contributions to solar physics, by J Norman Lockyer (London, 1874). Original: engraving. 1874

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Unequal refrangibility of two differently coloured lights sleepy but Britain remained neutral

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