Kids must stay away from water during summer vacation.

This plane can actually fly back on its own!

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Water really can freeze in an instant ❄️.

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Using the principle of similar triangles to measure tree height

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This is a bit outrageous.

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If you don’t understand math and science, everything feels like magic.

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This is just unbelievable—can anyone explain it?

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Make a Rainbow Rain at Home

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So this is how wireless charging really works.

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This time I finally understood...

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The tissue paper burned yet remained completely intact.

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Looks like we can save the money for buying speakers.

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The leaf-vein bookmarks my kid made look pretty good, don’t you think?

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Why didn’t I think of these?

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Why is the water black at night?

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You can even see such a beautiful rainbow at night!

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You literally wasted a whole glass of water!

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I’ve honestly never seen anything like it in my life.

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Turning like this for a lifetime still doesn’t seem to make it fall off.

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Sounds kind of reasonable.

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Today, nothing seems to go right.

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