Sentences with phrase «by absorbing some wavelengths»

Unlike pigments, which create color by absorbing some wavelengths of light and reflecting the rest, the nanostructures are shaped so that they physically bend and scatter light in different directions, sending particular colors back to our eyes.

Not exact matches

Created in collaboration with the world famous football star, Under Armour's Athlete Recovery Sleepwear use bioceramic particles that absorb infrared wavelengths emitted by the body and reflect back far infrared energy, helping the body recover faster while promoting better sleep.

The laser generates a specific wavelength of light that is absorbed in a stoichiometric fashion by glucose molecules — the more glucose molecules; the more photons are absorbed.

It is the first laser lipolysis technology that uses three wavelengths which are all absorbed by fat.

Light from the galaxy is absorbed by the dust, emitted as infrared, and stretched to radio wavelengths as the universe expands.

This is because their wavelength of 1064 nanometres means they are absorbed by the leaves and other organic matter such as oil, but not by metal, so energy from the lasers is reflected off the rails.

Most organisms» colors are produced by pigments that absorb certain wavelengths of light, but not others, to create a color.

This involves determining the composition of a planetary atmosphere by measuring its spectra, the distinctive radiation that gases absorb at their own particular wavelengths.

Astronomers have been telescopically studying Ceres for decades, using spectrometers to measure how certain wavelengths of light are reflected or absorbed by substances on the surface.

Electrons within atoms absorb light of a specific wavelength by jumping from one energy level to a higher one.

By seeing which wavelengths are absorbed as the starlight passes through the planet's atmosphere, astronomers could determine whether the atmosphere contains water, carbon monoxide, methane, and carbon dioxide.

They can identify chemicals by the unique pattern of infrared wavelengths that they absorb.

But not all the sunlight would be absorbed by this electrode: light with a wavelength longer than 600 nanometres isn't absorbed by the rust - coloured water in the top cell so would pass through to strike the lower electrode, powering the production of hydrogen.

A new solar cell design could raise the energy conversion efficiency to over 50 % by absorbing the spectral components of longer wavelengths that are usually lost during transmission through the cell.

And by controlling the dimensions of the nanorods, specifically their aspect ratio (or length divided by width), you can control the wavelength of light they absorb.

Fox aims to turn these diamond films into a new kind of solar cell, one that generates electricity by absorbing heat rather than visible - light wavelengths.

Since different elements and compounds absorb light at characteristic wavelengths, astronomers can determine what chemicals make up a planet's atmosphere by measuring the relative amounts of light that come in at particular wavelengths.

After decades of effort, physicists have probed the inner workings of atoms of antihydrogen — the antimatter version of hydrogen — by measuring for the first time a particular wavelength of light that they absorb.

After decades of effort, physicists have probed the inner working of atoms of antihydrogen — the antimatter version of hydrogen — by measuring for the first time a particular wavelength of light that they absorb.

Its atmosphere absorbs each band by a different amount, so the planet looks larger in some wavelengths than in others.

«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.

Some of the light passes through its atmosphere and key wavelengths of light are absorbed by atoms in the atmosphere leaving a fingerprint of its makeup.

In the new observations, certain wavelengths seem to be absorbed by fast - moving gas clouds, presumably debris from a doomed star: relatively cool gas laden with ionized carbon and silicon, flowing away from the black hole with a velocity of some 6000 kilometers per second.

The study also demonstrates that this can be accomplished in many ways — by coating the absorbing layer with metal or with a crystal structure that contains patterns on the scale of the wavelength of light, by embedding the absorber in a more complex three - dimensional array.

In a traditional solar panel, silicon atoms are struck by sunlight and the atoms» outermost electrons absorb energy from some of these wavelengths of sunlight, causing the electrons to get excited.

OCO - 2 will also closely monitor the carbon uptake of plants by measuring the weak fluorescence that is produced during photosynthesis as plants» chlorophyll pigments absorb light to capture energy and subsequently re-emit photons at longer wavelengths.

«When an exoplanet passes in front of its star, light can be absorbed at some wavelengths by molecules in the atmosphere, which we can analyze by looking at how light passes through the planet's atmosphere,» said Benjamin Charnay, a postdoctoral researcher in the University of Washington Department of Astronomy.

Fortunately, astronomers have been able to use longer radio wavelengths that are not absorbed by the obscuring dust and radiowave - emitting molecules like carbon monoxide (which are concentrated in the spiral arms) to trace the spiral disk's structure.

These are expected to have become rapidly enshrouded in the dust produced by the first stars; the dust absorbs much of the starlight making the galaxies difficult to see in the optical wavebands, but these same galaxies shine brightly at millimeter and submillimeter wavelengths.

Some wavelengths of the starlight will be absorbed by molecules in the atmosphere while other wavelengths will shine straight through.

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.

Photosynthetically available radiation (PAR) refers to the spectral range (wave band) of solar radiation from 400 - 700 nanometers (the visible wavelengths and the spectrum used by plants for photosynthesis) that is absorbed by the chlorophyll molecule.

The images were obtained at wavelengths absorbed by the Earth's atmosphere by the Extreme ultraviolet Imaging Telescope.

The light produced by these young stars is absorbed and re-emitted, at longer infrared and (sub) millimetre wavelengths, by the dust.

A number of similar black hole exploration methods have also been proposed in optical / infrared spectra so far, but one crucial problem is that emissions at these wavelengths are absorbed by interstellar dust particles although the more active black holes contain more dust particles.

The shorter wavelengths of IR radiation can penetrate the atmosphere, but as its wavelength reaches one micrometre, IR radiation tends to be absorbed by water vapour and other molecules in the atmosphere.

Highly energetic gamma - and X-rays, with wavelengths as small as or smaller than atoms, are absorbed by oxygen and nitrogen in the upper atmosphere.

Dust is another constituent of galaxies that can substantially modify their appearance by absorbing bluer light that typically indicates star formation and re-emitting it at redder wavelengths.

Some ghost GRBs also may be so far away that many wavelengths of light emitted by them may become absorbed by intergalactic gas.

Millimeter / submillimeter wave has longer wavelength than near - infrared light and is poorly absorbed by dust, which enables astronomers to peer into the inner part of the disk.

Any short wavelength radiation that might have been emitted was quickly absorbed by the atomic gas, and a long interval known as the Dark Ages began.

By looking at the wavelengths that CO2 absorbs the energy and seeing how much energy currently gets through can we not determine the «maximum» effect CO2 can ever have?

Gases that trap heat in the atmosphere are called greenhouse gases, in large part because they absorb certain wavelengths of energy emitted by the Earth.

When sunlight of the ultraviolet - B (UVB) wavelength strikes the skin, it is absorbed by 7 - dehydrocholesterol, a steroid and precursor to cholesterol, splitting open one of its carbon rings and thus converting it into the secosteroid previtamin D3.

It's a pulsed - dye laser that emits light at a wavelength absorbed by red blood cells, heating up and destroying the blood vessels.

In order to optimize the clinical benefits of laser therapy, the wavelength used must be weakly absorbed by water and melanin within the skin yet strongly absorbed by hemoglobin (the part of red blood cells that can be targeted with laser therapy to release oxygen) and the mitochondria (where oxygen is metabolized into energy).

I think the detector for this instrument was HgCdTe — a ternary semiconductor that can be tailored to absorb a particular wavelength range by varying the amounts of Hg and Cd.

In the related Dot Earth post, I included some remarkable video shot for the Environmental Protection Agency showing the difference between looking at an oil or gas facility with a standard camera and one tuned to the infrared wavelengths absorbed by gases like methane — the main constituent of natural gas:

If one could see the IR light, an opaque atmosphere would make the pattern of emitted IR diffuse since only the IR from the upper levels of the atmosphere escape to space after it has been absorbed and re-emitted by the greenhouse gases (this of course depends on the wavelength of the IR and the absorption spectrum, but we can use this assumption for heat loss integrated over the whole IR spectrum).

For those wavelengths in which the air absorbs effectively (such as the 15 micron CO2 band), surface radiation is effectively replaced by colder emission aloft, and is manifest as a bite in the spectrum of Earth's emission (see this image).