Can't you use an umbrella under high-voltage power lines on a rainy day?

How big is the universe? Where is its edge? What lies beyond it?

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Yemen is the first country to be destroyed by drugs, even children are not spared. How tragic is it?

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How to draw a circle?

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They say diamonds are forever, but they can be burned and broken.

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How to lay a qualified asphalt road? #Science #Unzip #Paving #Knowledge

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When MC upgrades, it becomes more scientific, and the maximum level is beyond my imagination # Minec

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I advise you to quit porn (enlarging testicles)

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Spoon/fork: If I had known this was a bad factory

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High Voltage Toys 9

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Damn, Am I Seeing Sound Now?

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Gear latch process principle

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High voltage toys 2

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Why is steel colored after cutting? #Science #Unzip #Metalworking #CoolKnowledge

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Electromagnetic experiment

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Speed bumps!! A mechanical marvel men can't resist~

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Hanabi❤️Use her belly to catch a 0.92-ton iron ball, and each like will increase the initial speed b

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What kind of wisdom did the ancients have to design such a sophisticated mechanism?

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I watched "Matthew the Physical Magician" in one sitting and practiced physical skills to the extrem

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Convex lens experiment

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Relaxing video: Skilled workers at a satisfying job site~

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