Search Results for: Light emitting diode
melroe introduced the m self-propelled loader and, in , louis added a rear drive axle, resulting in the m model, the world's first true skid-steer loader. [ ] laser an experiment with a laser a laser is a device that emits electromagnetic radiation through a process called stimulated emission. laser light
is usually spatially coherent, which means that the light either is emitted in a narrow, low-divergence beam, or can be converted into one with the help of optical components such as lenses. lasers are used to read compact discs and bar codes, guide missiles, remove ulcers, fabricate steel, precisely...
https://en.wikipedia.org/wiki/Timeline_of_United_States_inventions_(1946%E2%80%931991)