在外“围炉”的第一年|记者过年

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I just learned about the Svalboard. I’m interested in it for the ergonomics and the magnetic switches. I’m all about a weird-looking keyboard, but I do feel it would be a downgrade in terms of aesthetics and elegance compared to the Voyager. I’m pondering taking that plunge.

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Part of the approach involves developing actuators that output lots of data about their current position and function, so that computers can adjust their operation in real-time. But the hardware also needs to step up, too.

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Leonardo da Vinci is usually credited with conducting the first systematic study of friction in the late 15th century, a subfield now known as tribology that deals with the dynamics of interacting surfaces in relative motion. Da Vinci's notebooks depict how he pulled rows of blocks using weights and pulleys, an approach that is still used in frictional studies today, as well as examining the friction produced in screw threads, wheels, and axles. The authors of this latest paper used an experimental setup similar to da Vinci's.

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