Both colors are common in nature ... light exposure can significantly reduce blood pressure. Your blood pressure might temporarily spike if you are stressed. How often you use calming pictures ...

The process uses ultraviolet light ... pictures to be taken. “Reflected ultraviolet and infrared photography reveal secrets which we can’t see, but are nonetheless very important in nature ...

The ability to interpret light ... its color-detection system is so complex that scientists are still unraveling how it works. One of the most practical uses of color in nature is camouflage ...

Nature produces color in its creatures ... except photonic crystals only produce certain colors, or wavelengths, of light, while a diffraction grating will produce the entire spectrum, much ...