Sentences with phrase «of ultraviolet light»

Its importance is that ozone acts as a filter for certain wavelengths of ultraviolet light which can be harmful for life on earth.

This response is activated through the response of ultraviolet light on the retina, at the back of the eye.

Then he set up a plasma lamp to fire beams of ultraviolet light at the chamber, much like the radiation present in planet - and star - forming regions of dust clouds.

And you do all that using very sharp pulses of ultraviolet light, which we generate in my lab.

My work currently focuses on observations of the ultraviolet light emitted from small stars, and in particular flares of that emission.

A type of ultraviolet light that is harmless to humans could be a new weapon against the spread of flu virus in public spaces.

When portions of ultraviolet light (UV) strike free atmospheric oxygen it splits the oxygen (O2) into single oxygen (O) molecules.

It means that skin has to digest a huge of ultraviolet light that you might not know the amount.

They demonstrated that most of the mutations are the result of ultraviolet light and associated with the development of melanoma.

They analyzed the color patterns — not just in the spectrum of visible light that humans can see, but also the reflection of ultraviolet light that insects are sensitive to.

A blast of ultraviolet light may be all it takes, new tests show.

I never encourage the use of this artificial way of getting your share of ultraviolet light.

Vitamin D3 is the natural - occurring form of vitamin D produced from the reaction of ultraviolet light on the skin.

Tuft's rich color photographs capture the high levels of ultraviolet light in Antarctica, thereby exposing the visual effects of years of climate change.

Roughly 90 percent of the light from the early universe appears to be missing in the Hubble deep fields because the previous census of the deep fields missed most of the ultraviolet light in the universe.

The knots glow brightly due to absorption of ultraviolet light from the central stars.

The researchers suspect that the amount of ultraviolet light Earth receives from the sun explains the link.

Among their many activities, the Techbridge girls at John Swett wrote and produced an educational video on the phases of the moon, launched a campaign to educate the community about the harmful effects of motor oil and lawn fertilizer runoff seeping into San Francisco Bay, and studied the effect of ultraviolet light on plant growth.

A: Cold, dry weather seems to make psoriasis worse for many patients (in contrast, sun or other forms of ultraviolet light exposure helps).

A dab of hydrogen peroxide and a flash of ultraviolet light serve as the final sterilizing gatekeepers before the water reenters potable supplies.

Working in collaboration with scientists from the Deutsches Textilforschungszentrum in Krefeld and Sungkyunkwan University in Suwon, Korea, researchers at the Max - Planck - Institut für Kohlenforschung in Mülheim an der Ruhr have developed a process for immobilising different organic catalysts on textiles with the help of ultraviolet light.

The astronomers examined 69 distant quasars and active galaxies that lie behind the gas, to measure how much of their ultraviolet light ionized gas from the Magellanic Clouds absorbs.

The relatively high energy of ultraviolet light gives rise to certain photochemical reactions.

You don't need to plug this one in an outlet since they take advantage of ultraviolet light to sterilize the bottles.

When you add in the germ - fighting power of the ultraviolet light included, it also gives you peace of mind that germs that plague other humidifiers won't be a problem here.

And as the equipment descends, everything will pass a bank of ultraviolet lights that bathes it with 40,000 microwatts per square centimeter of cell - killing energy.

«Study finds low levels of ultraviolet A light protection in automobile side windows.»

feeds on awavelength of ultraviolet light that other turf grasses don't use, enabling it to thrive in shady or cloudy situations.

There will be a flash or scintillation of ultraviolet light.

This microscopic photo of a blueberry's skin shows that the berry is covered in a powdery layer of wax platelets, which are highly reflective of ultraviolet light.

But Alex Dessler, a space physicist at the University of Arizona, Tucson, says the same area of the planet also produces unusual radio signals, flares of ultraviolet light, and high levels of infrared radiation and even seems to be correlated with a patch in Jupiter's magnetosphere that pumps out high - energy electrons.

In another study, his team found that mice given chow containing trace amounts of arsenic, then exposed to a standard daily dose of ultraviolet light, had higher rates of skin cancers than mice given untainted chow.

Satellites can detect volcanic ash by observing the scattering of ultraviolet light from the sun.

Using premier beams of ultraviolet light at the ALS, a DOE national user facility for synchrotron radiation, the collaboration has reported the first demonstration of high - temperature superconductivity in the surface of a topological insulator — a unique class of advanced materials that are electrically insulating on the inside but conducting on the surface.

Wherever pulses of ultraviolet light strike the streams, a reaction is set off that forms a solid polymeric particle.

Scientists have known for several years that a bombardment of ultraviolet light, particularly long wavelength UV, can activate corn transposons.

«But, one exciting discovery made with NASA's Swift is that the emission of ultraviolet light of SDSS1133 hasn't changed for a decade, which is not something typically seen in a young supernova remnant.»

(The waves of ultraviolet light are more energetic and shorter than those of visible light.)

A stream of ultraviolet light from the dying star energized the gas, which helped it glow.

They realised that they were not just clumps of gas and dust that reflected light, or glowed under the influence of the ultraviolet light from young stars, but were a new class of objects associated with ejected material in star formation regions.

In the past, scientists anticipated Mars to have nightglow and previous missions had detected the presence of ultraviolet light.

We are able to observe the nebula without the aide of a telescope thanks to the large quantity of ultraviolet light thrown out by the stars embedded within it, which works to illuminate the surrounding clouds of gas and dust.

Scientists have explored the magnetic field in upper solar atmosphere by observing the polarization of ultraviolet light with the CLASP sounding rocket experiment during its 5 - minute flight in space on Sept..