Making a bridge out of grass
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That’s why it sounds like you’re inside an engine!
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Esparto grass can be used to make amazingly strong things!
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Grafting branches onto a tree
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How they filmed Keanu's fall in John Wick 3
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The difference between a California sea lion and a seal
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How submarines submerge and surface (1955)
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Peeling a log into veneers. Plywood results when they are press-glued together
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What happens to a germ when it enters the human body.
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How an AK-47 works
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In mathematics, the sieve of Eratosthenes is an ancient algorithm for finding all prime numbers up to any given limit.
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Brachistochrone curve. Fastest route for a ball.
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Ackerman steering.
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A demonstration of subtractive color mixing with a CMY cube. Opposing sides are colored with cyan, magenta or yellow film, when white light passes through two sides of differing colors both wavelengths are subtracted resulting in either red, green or blue.
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An interesting example of reinforcement learning
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How to obtain 4L using only 5L and 3L jars
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Typical parts of a railroad track
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Sewing machine
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How a sewing machine works
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Building with non recyclable plastic
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Difference between 10fps, 20fps, 30fps and 60fps
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Ground level view of changing tides
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Combination lock's mechanism
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Putting physics to good use
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How to brain surgery (tumor removal).
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1 radian = 57.2 degrees
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How Manholes Get Removed
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Comparing the size of common microorganisms under the microscope
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In the RDE combustion process, a detonation wave builds its own pressure rather than losing pressure as occurs in conventional compressor-equipped turbine engines.
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Candle flames are actually hollow
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