Why can magnets be charged? If the magnetic force persists, where does the energy come from?

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lengkepu

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The weird "Ames illusion"! Push the window and turn it, and an incredible phenomenon will happen

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What modifications can be made to an excavator? #PopularScience #Unzip #LargeMachinery #Excavator

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The foreigner's giant plow tractor actually has a cab from the last century!

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The Fertilization Process of Sperm and Egg

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What happens when the moon wakes up?

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Decompression video of the workers series!

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Can ice bullets really withstand the high temperature of gunpowder and become invisible after being

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Far more than the average family car? A palm-sized inline four! The whole process of assembly!

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Why can the fountain stone ball rotate? #Popular Science #Unzip #Physics #Fountain Stone Ball #Trivi

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Why do sprinkler heads keep knocking when irrigating farmland? #Science #Decompression #Irrigation #

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20 common mechanical transmission structures, I'm exhausted

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LEGO Dynamics: 360 Coaster Challenge

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

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How strong is the force of regular CPR? I feel like my ribs are going to break in the next second.

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Why do we need to install a wellbore when digging a well? #Science #Unzip #IncreaseKnowledge #Diggin

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Why are the joints of steel cables so strong? #Science #Unzip #SteelCable #MachineryManufacturing #E

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