Ancient compasses were actually this simple…

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1 View PremiumApr 17, 2026

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shuigebuhuang

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1:14

Following this idea, it seems like the fish tank could be completely revamped.

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0:41

You can play with bubbles like this?

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1:01

Water really can freeze in an instant ❄️.

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21 Views

0:58

Is This How You Really Prevent Static in Winter?

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0:42

Sounds kind of reasonable.

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0:42

Make a Rainbow Rain at Home

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0:41

This rocket is pretty cool.

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0:48

Using the principle of similar triangles to measure tree height

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1:08

Talk about a surprise first thing in the morning!

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0:59

The tissue paper burned yet remained completely intact.

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1:45

After keeping fish for so long, I’ve never even noticed this…

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1:00

I spent ages trying to figure it out, but still couldn't understand.

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1:05

This is how airplanes actually take off.

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1:49

Your praise has left me speechless.

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0:41

Why didn’t I have this toy when I was a kid?

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2 Views

1:09

My son made me a waterspout that’s shaking the world!

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5 Views

0:35

Can you measure even when the sun sets?

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1:01

Cracking the Secret Behind Figure Skaters' Spins.

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0:40

No wonder the moon is sometimes crescent-shaped—this is the first time I’ve ever enjoyed the moonlig

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0:45

Can you really play it like this?

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