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Roundel for use in optical experiments Size:XL: 80 x 80cm Campbell (second from the left)

SKU 60501592399
4.8
Roundel for use in optical experiments Size:XL: 80 x 80cm Campbell (second from the left)
Roundel for use in optical experiments Size:XL: 80 x 80cm Campbell (second from the left)
Roundel for use in optical experiments Size:XL: 80 x 80cm Campbell (second from the left)
Roundel for use in optical experiments Size:XL: 80 x 80cm Campbell (second from the left)
Description

Campbell (second from the left)

1959 MGA Twin Cam

Original is oil on panel 70x35

( Mr Punch)

Roundel for use in optical experiments Size:XL: 80 x 80cm Campbell (second from the left)Plate 9 figure 2 from the paper "New experiments on the ocular spectra of light and colours", by Robert Waring Darwin, Philosophical Transactions of the Royal Society, vol. 76 (1786), pp. 313 348. Roundel intended for use in exploring colour perception. In the written experiment circular pieces of silk are overlaid in the sequence blue (outer), yellow, pink, green and indigo (inner) with a central spot. "look steadily for a minute on this central

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