There's a light that never goes out… well, almost never. Since the invention of commercial light bulbs in the late 19th century, one bulb has outshone all others. In 2025, it could enter its 124th ...

This might make a super long life Laser diode, that lasts decades longer than an incandescent bulb be able to emit a kind of stepper motor-like form of polarized, possibly epilliptically polarized ...