There have been many studies that have been published over the years that really drive home the fact that blue light emissions from tablets and smartphones is really not good for you. (goodereader.com)
In addition to cutting down on the intensity of blue light emissions, you will also be able to enjoy great screen color temperatures thanks to its color filters. (nashvillechatterclass.com)
I examined gravitational waves, most recently the quantum theory of light emission and absorption, and the causes of lift in flight. (newscientist.com)