Boing Boing on MSN12d
This Victorian ghost book exposed spiritualist frauds with cool optical illusionsIn 1864, a peculiar book called "Spectropia" offered Victorian readers a scientific way to summon ghosts. As the Smithsonian reports, author J.H. Brown created this "toy book" to combat what he called ...
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Optical Illusion IQ Test: You Have 15 Seconds To Spot The Fish Hidden Inside The Room In The PictureYou have probably witnessed a wide variety of optical illusions by now ... In the picture, a dog and cat are present in the room where a fish is hiding. Can you identify the fish?
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