lasers

These are the top 10 landmarks in the history of making measurements

These are the top 10 landmarks in the history of making measurements

Little appreciated but vastly important, metrology celebrates a long history with the adoption of new definitions for key units.
DIY Arduino based CNC laser engraver from DVD drive

DIY Arduino based CNC laser engraver from DVD drive

Hello! In this video I'm making laser engraver CNC machine from two old DVD drives and Arduino nano. If you have an old DVD or CD drive and want to have some fun with laser, this is the project for you. You can do Wood Sketching by laser engraving.
Adventures in Science: LIDAR

Adventures in Science: LIDAR

LIDAR, which is either a mashup of laser and radar or an acronym for light detection and ranging, is the method of shooting a laser at an object and measuring the time it takes for that reflection to return to a receiver. Here, we look at how LIDAR works & how it can be applied to robots to detect objects.
Data Centers of the Future Could Send Bits Over Infrared Lasers

Data Centers of the Future Could Send Bits Over Infrared Lasers

A prototype in a lab at Penn State can beam data at rates of 10 gigabits per second
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