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The philosopher of science Daniel Dennett once lamented that his peers didn’t take engineering seriously enough. “There are excellent philosophers of physics, philosophers of biology ...

The SR-71 Mach 3 spy plane is built of titanium, with titanium nuts and bolts. The sockets also have to be made from titanium, because the nickel in standard sockets corrodes the titanium bolts.

Rusty nuts and bolts, discarded links of sturdy metal chains – where most people see junk, Ray Egger sees art. His projects started with wood scraps. When he retired after more than three ...