Tag Archives: hardware

Machine with Concrete

Machine with Concrete is a gear train consisting of twelve pairs of worms and gears, each of which reduces the rotational velocity of the system by 1/50. The input shaft is constantly driven at 200 rpm, and the output shaft thus turns at (1/50)12 of that speed, at which rate, Ganson writes, “it will take well over two trillion years before the final gear makes but one turn.”

The punchline, of course, is that the final gear is embedded in a block of solid concrete.

Link.

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A Homemade GPS Reciever

A homemade GPS receiver including FPGA code and a pretty clear explanation of how it works. Excellent work and a good read.
Check it out here.

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