Sentences with phrase «absorb wavelengths in»

They explained that blue and red LEDs are usually used for plant growth because chlorophyll a and b efficiently absorb wavelengths in the blue and red ranges.

Retinal tissue contains light - sensitive cells that absorb wavelengths in the visible spectrum and convert them into electrical signals.

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.

According to the researchers there are several chemical compounds that are typically used in a sunscreen that efficiently absorbed varying wavelengths of UVB radiation.

But he notes that the set - up might not work for the entire visible spectrum, because it would be difficult to prevent visible light with shorter wavelengths being absorbed or sent elsewhere, resulting in dark spots.

But if those aromatic hydrocarbons were treated with an acid to create aniline or another amine, after some additional steps the newly synthesized molecules very efficiently absorbed light particles from specific wavelengths in the visible spectrum.

The key discovery consists in the observation that the composite thin film — barely 110 nanometres thick — absorbs a broader portion of the solar spectrum compared to the wavelengths absorbed in the thin films made of the two individual materials.

Colours in nature normally come from pigments, which absorb most light wavelengths, except for ones that they reflect to give the colour we see.

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.

The reason: In addition to absorbing UV light, the carbon - enriched TiO2 catalyst also absorbed longer wavelength photons in the violet, blue, and green regions of the spectruIn addition to absorbing UV light, the carbon - enriched TiO2 catalyst also absorbed longer wavelength photons in the violet, blue, and green regions of the spectruin the violet, blue, and green regions of the spectrum.

As the quasar's light zips through the Fermi bubble, carbon and silicon atoms in the gas absorb certain wavelengths of ultraviolet light.

«The total thickness of 7.8 millimeters is around one twenty - ninth wavelength of the central frequency of incident microwaves, and the ultra-thin absorber with broad bandwidth may be widely used in warship stealth, airplane cloaking and tunable, broadband antennae.»

To get a different view, astronomer Giovanna Tinetti and her colleagues at the European Space Agency and University College London focused instead on the light grazing the atmosphere of HD 189733 b. Tinetti had predicted that water would absorb more light at the longer wavelength of 5.8 microns (thousandths of a millimeter) than at 3.6 microns, in contrast with other molecules such as methane and ammonia.

This material, in which carbon substitutes for some of the lattice oxygen atoms, absorbs light at wavelengths below 535 nanometers and has a lower band - gap energy than rutile (2.32 versus 3.00 electron volts).

And to know what to look for — water molecules absorb and emit different wavelengths of light when they're superhot and furiously jiggling — Bernath heated a tube of water in his lab to 2800 degrees.

The wavelengths of the absorbed light reveal how the target molecule's chemical bonds vibrate, which in turn tells about the types and positions of atoms in the molecule, the kinds and strength of bonds among atoms and the symmetry of the molecule, Milo says.

If this happened on an alien world, the uniformly sized nanodust would absorb or emit light at a specific wavelength, showing up as an odd signature in the planet's reflected light.

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.

These all absorb radiation at wavelengths in the mid-infrared between 3 and 10 micrometres.

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.

The extra height will get them above most of the water in the Earth's atmosphere, which absorbs some of the infrared wavelengths they're interested in.

Instead, it can absorb or emit light only of certain distinct wavelengths, as the electron in it jumps from one quantized energy level to another — the fact that a century ago spurred the invention of quantum mechanics.

«A much more likely interpretation is that this is a star that has an infrared excess,» she says, noting that dust surrounding a star can absorb visible light and reemit it in at infrared wavelengths.

One of the prime explanations for this low reflectivity — an abundance of minerals including the element iron, which strongly absorb certain wavelengths of light falling upon them — doesn't fit in this instance, researchers say.

They also carefully study the frequencies of light the gas absorbs, looking for signs of a shift in wavelength that would be a clue that the gas is moving toward us or away from us.

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

The halo's gas absorbed some of that light and made the quasar appear darker in a very small wavelength range.

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.

But in the ocean, the water absorbs red wavelengths, instead reflecting colours such as blue and green.

The rib, he and his colleagues report, absorbed infrared light in wavelengths that match those of collagen from modern animals.

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.

Plants and algae use chlorophyll to absorb energy from the Sun to power photosynthesis at wavelengths up to 720 nm — which is in the red part of the light spectrum, at the limit of visibility to the human eye.

The red, purple and orange balls are ions that can be varied so the material absorbs different wavelengths of light in its 3 - D form (left).

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.

Cloud droplets absorb certain wavelengths of light depending on their size, so noting which wavelengths are missing in readings reveals the size of the droplets present.

To do this, the first step was to optimize the production process of cells based on different polymers, in order to achieve the maximum efficiency of these materials; secondly, polymers that absorb light at different wavelengths have been used to produce cells with a tandem structure in order to make them more efficient.

«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.

The chemical bonds in each molecule absorb infrared light of a characteristic wavelength.

A Canadian team had tried hydrogen fluoride because it absorbed light at a large number of discrete wavelengths in the visible spectrum.

The standard explanation for this is that the atoms in the atmosphere of the star absorb some of the light which is emitted, and each element absorbs only some distinct, characteristic wavelengths of light.

Few deep - living species have the ability to detect yellow light, which, because it has a higher wavelength, gets absorbed in the shallow surface waters, so it is unclear why Tomopteris uses it.

«It can absorb all wavelengths of UVB radiation, with no gaps in coverage,» says Zwier, who says his finding could be useful for developing more resistant plants.

After six months in the lab, Butler emerged with harmless iodine gas, which absorbs light at even more wavelengths.

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.

Planets with atmospheres are able to warp starlight in another way: while the body of the planet blocks a big chunk of starlight as it crosses in front of its host star, the planet's thin, enveloping atmosphere absorbs starlight at particular colors, or wavelengths.

Due to the presence of molecular and gas - phase absorbers in planetary atmospheres different wavelengths probe different pressures.