资讯

Woman&Home on MSN6 个月
Infrared vs red light therapy: what’s the difference and which should you be using for ...
The world of LED tools in beauty can feel like ... visible light spectrum red light sits in; infrared and near-infrared are ...
PBS5 个月
Light As A Cosmic Time Machine by Andrew Fraknoi
We learn about the planets, stars, and galaxies by their light—visible light, and also shorter-wavelength ultraviolet and longer-wavelength infrared ... you look at the Sun, you see it as ...