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 distance from Tokyo to Kanagawa (1.98 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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28 times bigger than Yamanote Line between Tokyo-Shimbashi .
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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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729 times bigger than Boeing 777-300 .
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8,770 times bigger than world record of pole vault .
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67,312 times bigger than Japanese sword .
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897,500 times bigger than body length of the bean hummingbird (smallest bird in existence) .
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7,066,929 times bigger than diameter of bullet .
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107,700,000 times bigger than diameter of ovum .
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897,500,000 times bigger than sperm .
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4,142,307,692 times bigger than diameter of nylon fiber .
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53,850,000,000 times bigger than diameter of the largest virus .
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1,538,571,428,571 times bigger than diameter of bacterial flagella .
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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 Ehime (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 Fukuoka (9.02 to be exact).
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34 times smaller than distance from Sao Paulo to Buenos Aires .
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45 times smaller than distance from Hokkaido to Okinawa .
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62 times smaller than distance from Sao Paulo to Santiago .
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92 times smaller than distance from Cape Town to Nairobi .
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445 times smaller than altitude of GPS satellite .
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5,858 times smaller than distance that light travels in 1 second .
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28,835 times smaller than diameter of the Sun .
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864,132 times smaller than distance that light travels in 1 minute .
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4,057,565 times smaller than distance to the Sun .
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75,382,333 times smaller than diameter of Saturn .
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306,267,567 times smaller than diameter of Pluto .
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6,886,901,704 times smaller than distance that light travels in a day .
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830,368,688,886 times smaller than diameter of Pleiades .
