LEDs are usually more energy efficient and emit weaker rays than UV light bulbs. Here’s what that means for your nails: If you still don’t know how to decide, start by picking out what brand ...

sodium and nickel was able to block visible light while allowing ultraviolet rays to pass through. By this time, Edison’s incandescent light bulbs had made a triumphant entry into the ...

Aargh, I caught a strand of grey in my hair! Fret not, silvers are natural and beautiful parts of life. Here is what causes ...

The ultraviolet light bulbs are highly efficient and last the life of the toothbrush case, so there’s no need for replacement. One downside is that the toothbrush sanitizer is operated by 2 x 1 ...

targeted UV light without the high temperatures that lead to the buildup of effluent that fouls traditional mercury bulb systems. Already embraced by a handful of innovative water utilities for ...

Dalhousie University researchers have developed a new wastewater treatment method they say is more energy-efficient.

Every engineer knows you should be able to tell the state of an electronic device by looking at its LEDs and their color.

Donald Trump has been the most dominant figure in American politics for the past decade and on the eve of his third ...

Fix the discolored and hazy headlights on your vehicle with one of our favorite headlight restoration kits. The post The Best ...

Is the Hisense 110 UX the brightest TV ever made? And do older TVs like CRT and Plasma TVs actually have better color than ...

After the growth phase, the hair develops into a club hair, with a bulb of keratin forming at the root end of the ... by ...