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Videos

3:33
What’s the principle behind electromagnetic guns? Can they replace rockets for launching satellites?
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2:44
How do aircraft take off from and land on an aircraft carrier? An animated explanation of the princi
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3:34
The sea is so deep—how on earth were the bridge piers of this cross-sea bridge constructed? When it
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2:44
What’s an “earworm”? Why are we always obsessively stuck with catchy tunes?
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2:47
How can we measure the Earth's mass? Cavendish brought out his torsion balance, and an intriguing ph
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2:27
The amazing "dynamic sculpture," powered by mechanical principles and natural wind, moves non-stop!
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3:15
What is the principle behind car engines? What are the functions of cylinder count and turbocharging
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2:37
What is a "traction beam"? Place a ping-pong ball on a vibrating wave surface, and an interesting ph
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3:09
What is the principle behind an airplane taking off? A 300-ton passenger jet makes an impressive tak
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2:29
What’s the principle behind MRI? How do CT and MRI differ? You’ll learn something new after watching
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3:33
Having survived four major earthquakes over 800 years, why does the "Leaning Tower of Pisa" lean but
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1:32
What is the fastest curve? When three small balls are pushed down from the same height, an interesti
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3:30
The temperature in space is -270.4℃, so why does the space station need to increase heat dissipation
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3:09
How does a 100-meter tower crane, taller than buildings, get taller? Years of confusion finally clea
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3:36
The sea surface is turbulent—how does the drilling platform stay stable? Is it supported by pillars
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2:18
What's the secret behind "1+1"? What exactly is the famous Goldbach Conjecture trying to guess?
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2:41
Can snapping your fingers also be a celestial-level skill? One hand can snap over 300 times in a min
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2:40
Why is there such a big difference between airplane and car seat belts, even though they serve the s
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4:05
What is Hyperloop? Its top speed could reach 4,000 kilometers per hour—do you know how it works?
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3:09
What is Zeno's Paradox? You might never finish watching this video! The mind-bending Dichotomy Parad
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