The length of Seikan tunnel (the 2nd longest tunnel in the world) is ...
The length of 1 Seikan tunnel (the 2nd longest tunnel in the world) is 53.85 kilometers. That is ...
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2 times bigger than Mt. Olympus on Mars (the highest mountain in the solar system) (1.99 to be exact).
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5 times bigger than depth of Mariana trench (4.94 to be exact).
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6 times bigger than Mt. Everest (6.09 to be exact).
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55 times bigger than Angel fall (the highest waterfall in the world) .
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83 times bigger than Warsaw radio tower .
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979 times bigger than leaning tower of Pisa .
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4,488 times bigger than wingspan of quetzalcoatlus (the largest flying animal in history) .
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96,161 times bigger than length of a crow .
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735,656 times bigger than diameter of baseball ball .
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7,066,929 times bigger than diameter of bullet .
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53,850,000 times bigger than length of lice .
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897,500,000 times bigger than sperm .
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8,975,000,000 times bigger than diameter of B. anthracis spore .
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76,928,571,429 times bigger than red light wavelength .
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538,500,000,000 times bigger than diameter of chromosome .
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2 times smaller than distance from Osaka to Tokushima (2.08 to be exact).
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3 times smaller than distance from Osaka to Fukui (3.08 to be exact).
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5 times smaller than distance from Osaka to Toyama (5.02 to be exact).
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6 times smaller than distance from osaka to Nagano (6.03 to be exact).
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7 times smaller than distance from Osaka to Yamaguchi (6.99 to be exact).
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8 times smaller than distance from Osaka to Chiba (8.01 to be exact).
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9 times smaller than distance from Osaka to Ibaraki (8.97 to be exact).
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29 times smaller than distance from Tokyo to Okinawa .
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37 times smaller than distance from Sao Paulo to Buenos Aires .
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54 times smaller than distance from Sao Paulo to Santiago .
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88 times smaller than distance from Cape Town to Nairobi .
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99 times smaller than distance from Tokyo to Singapore .
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864 times smaller than equator .
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94,399 times smaller than diameter of the Sun .
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750,595 times smaller than distance that light travels in 1 minute .
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9,644,015 times smaller than distance to the Sun .
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34,332,573 times smaller than diameter of Saturn .
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225,353,715 times smaller than diameter of Pluto .
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9,274,376,294 times smaller than distance that light travels in a day .
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920,481,890,644 times smaller than diameter of Pleiades .
