How black is the blackest substance in the world? Can you imagine that it can make objects invisible

Incredible "tubeless siphon", liquid can climb up the wall of the cup by itself, do you know the pri

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Front: Let me see what we built today? After: 6

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What happens when a leech encounters a piece of fatty liver?

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How about feeding live leeches to nepenthes? Can you digest it?

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Slime Experiment!

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A leech vs 10 Periplaneta americana: A bloody battle!

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When I was cleaning up my study, I found an unopened box of watercolor paints.

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Fire and ice

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[Science] Magnify the tip of the pen N times!

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The moment the liquid aluminum was poured in, the ant nest immediately burst into flames! smoke ever

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Converting water into hydrogen is so easy - How to make a simple hydrogen generator!!!

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【Painting】Painting of Six Rapunzels

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Good guy, there will be no need to build bridges in the future.

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Teacher, let me show you

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Mix glass powder together to write? I am amazed by it again!

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Red-hot iron ball vs sand

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Is this material reliable for roofing?

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[Seriously research] How hard are the eyes of the golden ship?

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Is this the so-called teacher's kindness? ?

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Tile paving as a waterproof material, have you ever seen this kind of material?

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