Category Archives: laser

Smoke Some Weeds: Lasers Could Make Herbicide Obsolete

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We’ve all tangled with unwelcome plant life at one point or another. Whether crabgrass infested your lawn, or you were put on weeding duty in your grandfather’s rose patch, you’ll …read more Continue reading Smoke Some Weeds: Lasers Could Make Herbicide Obsolete→

“World’s smallest ball game” tosses single atoms between light traps

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Scientists in South Korea have created what they call “the world’s smallest ball game,” throwing individual atoms between two optical traps. The research could eventually make for more adaptable and dynamic quantum computers.Continue ReadingCategory: S… Continue reading “World’s smallest ball game” tosses single atoms between light traps→

Hackaday Links: March 12, 2023

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With a long history of nearly universal hate for their products, you’d think printer manufacturers would by now have found ways to back off from the policies that only seem …read more Continue reading Hackaday Links: March 12, 2023→

Laser used to spot and identify bacteria in a matter of minutes

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Currently, in order to see what type of bacteria (if any) are present in a liquid sample, bacterial cultures have to be grown in a lab over the course of several hours – or even a few days. A new laser technique, however, works in just minutes.Continue… Continue reading Laser used to spot and identify bacteria in a matter of minutes→

Goniometer Gives You an Edge at Knife Sharpening

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Two goniometers sit on a table. One is an open wooden box with a long piece of plywood along the bottom. A laser distance finder rests on the front edge and a printed angle scale has been attached to the back side of the box. To the right of this box is a much smaller goniometer made from an orange pipe cap with a small strip of paper serving as the angle scale inside the interior edge. It is attached to a wooden handle that looks vaguely like a V. A laser pointer can be inserted from the bottom where a hole has been drilled through the wood.

Sometimes you absolutely, positively need to know the angle of the cutting edge on a knife. When you do, the best tool for the job is a laser goniometer, and …read more Continue reading Goniometer Gives You an Edge at Knife Sharpening→