The incredible Buffon needle throw: throwing a needle randomly on paper can actually calculate "π"!

What is the "Super Mirror"? 12,000 mirrors and 20,000 tons of molten salt can generate electricity e

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What is the principle behind submarines? What's the difference between nuclear and conventional subm

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Thermal Fusion–Based Rust-Proof Locking Cap, DIY Oil Guide Nozzle, Bottle Cap to Grip Conversion, Du

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Small Tips for Sewer Pipe Dredging, Repair, and Connection

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Let’s take a look at those amazing jobs.

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The mesmerizing farm machinery of the "human speed bump"

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A few useful life hacks

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A tool men can’t refuse

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The astonishing work site of skilled workers

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I gave you a chance—you just wouldn’t leave. #WebDramaBlazingAttraction

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The astonishing work of skilled workers

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Minecraft Transformation 10: How to make a bookshelf? I make the case from a mathematical and physical point of view

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No nonsense: How terrifying is sex addiction?

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The Most Tragic Machine in History

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The Connection Between π and e

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Three people drink three buckets of water in three days; how much water do π people drink in e days?

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Tinker Bell's math learning CD clip

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Complaints about Advanced mathematics

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Become My Shikigami

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The king of sliding is "banana peel". Scientists stepped on the banana peel 60 times to conduct an e

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