To be more energy efficient, many people have replaced their incandescent lights with light-emitting diode (LED) bulbs. However, those currently on the market emit a lot of blue light, which has been ...
British inventors began experimenting with electric lighting in the 1830s, working on so-called arc lamps, while other scientists around the world focused on developing a functioning incandescent lamp ...
A South Korean company named Seoul Semiconductor claims to have developed an ultraviolet light-emitting diode (UV LED) that can kill 99.9% of SARS-CoV-2 in 30 seconds. UV light is a powerful ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback