axoaxonic (axoaxonic) wrote in linguaphiles,
axoaxonic
axoaxonic
linguaphiles

What's it called?

I've seen plenty of children's rulers and product packaging with images that seem to change a bit as the surface is rotated toward and away from the viewer. The images are printed on different sides of tiny raised plastic ridges or pyramids to acheive this effect. Does anyone know what this is called? I can't even figure out the right terms to google!

Examples: My nephew has a ruler with lion cubs on it; as you rotate the ruler, the cubs' legs seem to walk forward. I also just got a card in the mail for the new Hugh Jackman movie. Viewed straight on, he's bare-chested :), but from slightly above or below, he's wearing a shirt and jacket.
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  • UDDER and WATER

    To the memory of Vladislav Illich-Svitych. This is just to bring attention to something very ‘Nostratic’ (far beyond ‘Indo-European’ languages —…

  • Three one-hundredths of a second

    (Somewhat prompted by watching the Olympics.) Why is that silly redundancy there in "three one-hundredths of a second"? Nobody says "two one-thirds…

  • EUROPA, etymology

    "... Agenor, king of the Phoenician city of Sidon, had a beautiful daughter Europa, literally (in Greek) the "wide-eyed". In fact, of course, not…