1 For severe stains, add 1-2 cups vinegar to the wash cycle as well. 2  To remove a rust stain from your cotton work clothes, moisten the spot with some full-strength vinegar and then rub in a bit of salt. 3  If itâs warm outdoors, let it dry in the sunlight (otherwise a sunny window will do), then toss it in the wash.
absorption spectrum - the spectrum of electromagnetic radiation that has passed through a medium that absorbed radiation of certain wavelengths. spectrum - an ordered array of the components of an emission or wave.
Wave Physics Glossary and Terms. Absorption - Absorption is when some of the wave's energy is taken away when a wave encounters a medium. Amplitude - The measure of the displacement of the wave from its rest position. The higher the amplitude of a wave, the higher its energy. Coherence - Two waves are said to be coherent when they have a constant phase difference between them. Crest - The crest is the highest point of a wave. The opposite of the crest is the trough. Diffraction - Diffraction is when a wave remains in the same medium, but bends around an obstacle. Electromagnetic Waves - Electromagnetic waves are waves that can travel through a vacuum.