This is absorption, and each element’s electrons absorb light at specific wavelengths (i.e., energies) related to the difference between energy levels in that atom.

Falling energy levels in galaxies mean the Universe is ... to measure the energy output of over 200,000 galaxies across as broad a wavelength range as possible," said Professor Simon Driver ...

Each color in the visible light spectrum has a different wavelength and energy level. Blue light has shorter wavelengths and higher energy than other colors. Some research shows a link between eye ...

IR frequencies range from about 300 gigahertz (GHz) up to about 400 terahertz (THz), and wavelengths are estimated to range between 1,000 micrometers (µm) ... or energy levels.

Without this advancement in wavelength conversion, noted the authors, it would have required 100 times the optical power level to achieve the same terahertz waves, which the thin optical fibers ...

The racetracks are called energy levels, ... Because some visible wavelengths pass through colored glass, we can still see through it. More deals, reviews, and buying guides.