Jason Lewis has completed a round-the-world trip, traveling by his own muscle power only. It took him over 13 years, due to injuries and incredible misadventures.

A long-lost text by the ancient Greek mathematician Archimedes shows that he had begun to discover the principles of calculus. This discovery puts the beginnings of calculus 2,000 years earlier than we thought.

The new Sony Bravia Playdoh bunnies ad is out. There are some questions about where the original idea came from.

Could you pass eighth grade science? Yes, I can. I even got an A!

The ten worst presentation moments. Imagine speaking to a roomful of strangers you want to impress, and your requested PowerPoint is interpreted as an electrical outlet, or your shoes are superglued to the carpet.

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