Finally you found a page dedicated to Explaining Architecture. To cross a river, you place a single log across it and invent the log bridge (林木桥). But long logs are hard to find, so you cleverly join two shorter ones. Shave half off each end, carve a raised tenon on one side and a recessed mortise on the other, locking them together so they can't s
Medieval builders used iron clamps and molten lead to lock massive stone blocks together, creating hidden connections that strengthened the most critical parts of Gothic cathedrals. They also embedded long iron bars inside the masonry, tying different parts of the cathedral together. To install these reinforcements, craftsmen first carved slots int
Whoever invented the tricon drill bit was truly a genius. A single drill bit with three rolling cones can easily bore dozens of meters deep into the ground. The cones are covered with extremely hard metal teeth designed to attack rock. The moment the bit starts spinning, these teeth crush and shatter rock as the bit rotates at high speed. Hundreds
Long ago, to join steel plates, workers would drill a hole in the metal, hammer in a red-hot rivet, and pound it into place. As the rivet cooled and contracted, it pulled the plates tightly together. But the more the plates vibrated, the looser the rivets became over time. People started wondering, could steel plates be joined without rivets at all
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