Abstract
I READ Dr. Loewenstein's letter1 with the above title with great interest and began by repeating the tests which he describes. I took a bright nickel three penny piece (1944) and polished it; I took also a very dull one which was minted during 1937. I placed them on a black background and at once saw, as Dr. Loewenstein states, that the older one appeared the larger.
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Nature, 155, 672 (1945).
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HARTRIDGE, H. An Illusion of Size. Nature 156, 118 (1945). https://doi.org/10.1038/156118b0
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DOI: https://doi.org/10.1038/156118b0
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