The principle behind this scanner is the typical of a line scanner. A laser beam intercepts the object to be measured and a camera, positioned at a known angle and distance shoots a series of images. With some trigonometry considerations and optic laws it is relatively easy to reconstruct the Zeta dimension, the measurement of the distance between the object and the camera.
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This is my version of a classic way to “roll” the die for a board game.
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Build a snack-dispensing scratching post that will make Kitty forget the couch and curtains.
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Make a cheap, high-tech nozzle to eliminate turbulence and create incredible water effects.
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Crystal radio technology has been around for many years. This “bottle radio” take on a crystal radio requires no power source, operates on the power from radio waves, and receives signal from a long wire antenna. As radio stations slowly move away from the AM band, the “window of opportunity” to experience this remarkable technology […]
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I had a dying madrone (Arbutus menziesii) in my backyard. Looking at its structure, I noticed a nice 3-pronged junction of branches a few feet above my head. I thought this would make a nice tripod base for a small side table, so with a bit of trial and error and a slice of another […]
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