Sentences with phrase «ultraviolet light does»

However, ultraviolet light does not penetrate below the stratosphere.

However, because there are a lot more oxygen atoms in an oxygen multimer than in a regular diatomic oxygen molecule, the ultraviolet light doesn't have to split the oxygen into individual atoms.

I would love to learn how oxygen prevents oxygen from combining when lightning and ultraviolet light do it every day.

Not exact matches

Miller said he doesn't know specifically how the hospital staff used his ultraviolet light - emitting robots to prevent the spread of the virus while Duncan was undergoing treatment.

But, because we worry (and rightly so) about skin cancer, we shield our skin from the sun's ultraviolet light with clothing and sunscreen, which makes it impossible for our bodies to manufacture Vitamin D. Breast milk was never meant to be the source of vitamin D for our babies (as we are all intended to make our own vitamin D with exposure to sunlight), but as we continue to be cautious about exposure to sunlight, babies do not make enough Vitamin D, nor do they receive enough in breast milk.

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

Most jaundice needs no treatment, but when it does, phototherapy (light therapy) is considered very safe and effective: Placing a baby naked in a bassinet, with his eyes covered, under blue «bililights» often does the trick, because ultraviolet light changes the bilirubin to a form that the baby can more easily dispose of in his urine.

An additional advantage is that LEDs don't emit ultraviolet light, so they don't attract bugs.

«We control the below - threshold harmonic light emission by using electromagnetic fields with time - dependent ellipticity, like we have done to the above - threshold high - order harmonics,» said Chang referring to the creation of a 67 - attosecond pulse of extreme ultraviolet light, which earned him international recognition.

So, because we can't sense ultraviolet light with our visual pigments, we can't even pick up on the cues that turkeys are probably using, and now that I know that this is changing, the next step is to find out whether females actually care about this change, which we don't know whether there is a behavioral response to turkeys being different in their ultraviolet reflections.

We do know that domestic turkeys prefer to be in poultry houses where the lighting includes the ultraviolet wavelength.

The new observations were done in ultraviolet light and could only be accomplished with a space telescope high above Earth's atmosphere, which blocks most ultraviolet light.

(A set of miscarried twins did show such signs; one of them had a finger that glowed when placed under ultraviolet light.)

Although the skin can manufacture vitamin D, it needs a threshold amount of ultraviolet (UV) light to do so.

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

While genetics play a role in the development of Lupus, a systemic autoimmune disease that can attack any organ system in the human body, so do environmental triggers, such as particulates in air pollution and ultraviolet light, explains Gaurav Gulati, MD, a physician - researcher at the University of Cincinnati (UC) College of Medicine.

Corash's team observed that when a bag of blood plasma or platelets is slipped under an ultraviolet light, psoralens bond to the rungs of each double helix — and don't let go.

These images are complementary to space - based telescopes, like NASA's Solar Dynamics Observatory, which takes images primarily in ultraviolet light and does not have the capacity for the high - speed imagery that can be captured aboard the WB - 57F.

«What we're going to do is examine the structure and composition, the energy inputs into the upper atmosphere, the solar wind, the solar ultraviolet - light, and solar energetic particles that come out of major storms on the sun, and see how the atmosphere responds,» Jakosky said.

Hubble, being a space - based observatory with state - of - the - art spectrographs, can search for the missing colors of light absorbed by the intergalactic gas, particularly in the high - energy ultraviolet colors where the hot intergalactic gas does a significant amount of absorption.

«They get a lot more ultraviolet light radiation in total than people who don't [go tanning], even more than people who spend a lot of time out in the sun,» says Dr. Olbricht.

In fact, exposure to ultraviolet light (UVA and UVB) accounts for 90 % of the symptoms associated with photoaging, which refers to the damage that is done to the skin from prolonged exposure to UV radiation.

after doing some looking around on the web I found a connection between mouth burn syndrome and over exposure to ultraviolet light.

Ultraviolet light exposure does help psoriasis, however, so a little sunshine (not too much, because sunburns can make psoriasis worse) on psoriasis plaques can be a good thing.

At normal temperature the virus can remain active in infected tissue for several weeks, provided the infected source does not dry out, or become exposed to ultraviolet radiation (sun light).

Although the dye does not usually stain carpeting, it causes urine to glow blue under ultraviolet light for about 24 hours.

In the early 1950s, when Rauschenberg was living with artist Susan Weil in a one - room apartment on West 95th Street in Manhattan, they produced a series of cyanotypes — images produced without a camera, by shining an ultraviolet light on an object or nude model resting on blueprint paper, exposing the paper where the light isn't blocked and creating a negative shadow of the object or model's outline, similar to the way an X-ray is done.

«One of the problems with ozone is that we don't understand how the UV - B is changing at ground level, and what fraction of the ultraviolet light really causes cancer.»

The Declaration of Independence is lit by a Fiberstars system because the light source does not emit ultraviolet rays or heat.

«If you have less ozone, there's less absorption of the ultraviolet light and the stratosphere doesn't warm as much.»

Everything from beer to medicine is bottled in dark colored bottles in a bid to keep ultraviolet light (and visible light as well with regard to beer) from reaching the contents — the effects of which can range from irritating (when your beer doesn't taste right any more) to life threatening (when your medication has begun to break down and is no longer effective).