There is a common experience in a large domed building, which is standing underneath and being unable to work out what is holding it up.
That reaction is appropriate. A…
The whole subject is pressure rather than force. The same push applied through a smaller area produces a higher pressure, and a cutting edge exists to make that area as…
The whole subject rests on a single exchange: turn something slower and you turn it harder, in precise proportion. Nothing is gained and nothing is free. Here are fourteen consequences.…
There is a category of biological material that outperforms engineered equivalents, and the interesting question is usually not the material but the manufacturing.
Silk is the clearest example. The properties…
The question to ask at any bridge is where the force goes. Straight down, outward against the banks, up into a tower, or along a chain of triangles - and…
There is a widely held picture of how concrete works, and almost every part of it is inverted.
The picture is that wet concrete is a thick paste which dries…