Why can a broach cut through a gear so smoothly? #PopularScience #Unzip #Broaching #Machining #CoolK

Why is sand used in sand casting black? #Science #Unzip #Casting #Machining #Cool Knowledge

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Why can a flame gun refurbish plastic?

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Why is glass humanity’s greatest invention? #ScienceCommunication #Glass #Science #LearnSomethingNew

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A fellow enthusiast from Anhui sent a piece of DC53 tool steel, asking Master Yu to forge a slicing

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“My imperial excavator bucket has finally been shipped!”

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How are such precise molds made?

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Why is there always a worker crouching in the most dangerous spot next to the piling rig?

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How are mooring ropes secured? #Science #Unzip #MooringRopes #Ship

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LNG carriers: Why do ships always give way when they spot one? #Ships #LNGCarrier #Shipping

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

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The wisdom of the working people is to change the direction of force to move heavy objects. #Science

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

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Why do we need to cut a slant on the tree when felling it?

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Do you know how glass marbles are made?

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19th-century German craftsmanship. The principle of the Reuleaux triangle—still haven’t figured it o

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Why do we add a layer of metal between the hammer head and the wooden handle? #Science #StressRelief

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Why can a hatchet easily chop down a tree as thick as a bowl? #Science #Relief #Hatchet #Logging #Tr

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Men’s Speed Bump – Skilled Worker Series

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Why does the bearing emit "hot air" when installing it? This is the interference fit installation me

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How scary is it to land a plane in a gusty wind? #Science #Relief #Aircrash #Knowledge

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