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The Ig Nobel Prize clock with a leap-second hand. (© Power News)
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The 10 trillion Zimbabwe dollar note that Higashiyama received as prize money. (© Power News)
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Higashiyama demonstrating between-the-legs viewing. (© Power News)
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The vertical and horizontal bars are of the same length, but the horizontal-vertical illusion makes the vertical bar look 1.4 times longer.
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Between-the-legs viewing at Amanohashidate. (🄫 Pixta)
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The Ig Nobel Prize certificate presented to Higashiyama. (Courtesy of Higashiyama Atsuki)
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Professor Emeritus Higashiyama Atsuki. (© Power News)