A teen in Michigan built a working nuclear reactor. He taught himself how to build it as a weekend hobby project in his basement from ages 15-17 for $3500.
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Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
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Chunosuke Matsuyama, a Japanese Seaman, sent a message in a bottle in 1784 that his ship had wrecked. It washed up in 1935 in the village where he was born.
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The highest speed ever achieved on a bicycle was 167.04 mph by Fred Rompelberg in 1995.
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