There's a regenerative candle that creates a new candle as it melts.
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A man called Dean Karnazes ran 350 miles in 80 hours with no sleep, ran a marathon in the South Pole in -25 °C temperatures without snowshoes, and ran 50 marathons in 50 states in 50 days.
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Scientists lit a cave of natural gas on fire in 1971 expecting it to only burn for a few days; it still burns to this day. It has been nicknamed "The Door to Hell".
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A man with locked-in syndrome, named Jean-Dominique Bauby, wrote an entire book by blinking his left eyelid.
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When the 2013 government shutdown threatened the closing down of a national program giving medical attention and meals to children, John D. Arnold donated $10 million of his own money to keep it afloat.
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Korean Okhwan Yoon left behind a profitable business to cycle the world in aid of world peace. For over 9 years, he has biked across 192 countries on six continents, and has survived 6 car accidents, malaria, extreme temperatures, robbery, and kidnapping.
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Steven Callahan spent 76 days at sea while he drifted 1,800 perilous miles across the Atlantic in a rubber raft, battling starvation, thirst, sharks and storms. He later became the technical adviser for the acclaimed movie Life Of Pi.
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