The world’s smallest book, “Teeny Ted from Turnip Town”, is 100×70 micrometers in size and requires a scanning electron microscope to read, as light beams are too large.
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Jupiter's magnetosphere is the largest single structure inside the Solar System. If you could see it with your eyes, it would appear larger than our full Moon.
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The world's tallest snowman was created in Bethel, Maine in 2008. It measured in at 122 feet / 1 inch and weighed 13,000,000 lbs.
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The largest breed of rabbit is the Flemish Giant.
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Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
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