Sentences with phrase «light at certain wavelengths»

As starlight passes through a planet's atmosphere, atoms and molecules absorb light at certain wavelengths, blocking it from the telescope's view.

«Light at certain wavelengths can be absorbed out of a thin optical waveguide by a microresonator — which is essentially a tiny glass sphere — when they are brought very close,» explained Gaurav Bahl, an assistant professor of mechanical science and engineering at Illinois.

The crystals reflect light at a certain wavelength depending on their spacing, so the relaxed gel appears green, but squeezing or stretching it turns it blue or red.

Not exact matches

Instead, researchers want to look at the effect of magnetism on certain wavelengths of infrared light emitted by the corona.

The possibility of such cells has been debated at least since the 1950s, when researchers found single neurons in the visual cortex of cats and other animals that respond to simple stimuli, such as lines oriented at a certain angle or moving in a specific direction, or light of a particular wavelength.

For example, some of these materials can channel light around an object so that it appears invisible at a certain wavelength.

Spectrometers can be tuned to detect the wavelengths at which scientists know a given element emits and absorbs light; scientists can then determine the element's presence by whether it emits or absorbs light of certain characteristic wavelengths.

Light at certain specific wavelengths can be produced by gas molecules in these galaxies, and the wavelengths are stretched by the expansion of the Universe over the billions of years that it takes the light to reacLight at certain specific wavelengths can be produced by gas molecules in these galaxies, and the wavelengths are stretched by the expansion of the Universe over the billions of years that it takes the light to reaclight to reach us.