Who's got the ultraviolet?

Insects see green, blue and ultraviolet, and they see various shades of ultraviolet.

Ultraviolet rays can cause skin cancer.

Ultraviolet rays are harmful to us.

We used ultraviolet radiation to do that.

These men with the ultraviolet need shots!

I ran fingerprints, DNA, ultraviolet. Nothing. Nada.

look at what's happening to the ultraviolet radiation.

So we used ultraviolet A, which doesn't make vitamin D.

And the image on the right is an ultraviolet image.

You said it can't stay active in the ultraviolet light.

He put on sunglasses to protect his eyes from ultraviolet rays.

The blue light is squeezed to the ultraviolet and so on.

radio waves, microwaves, infrared, ultraviolet, x rays, gamma rays, and so on.

Yes, sir. I assume we don't need the masks in the ultraviolet.

So this seems to be a feature of ultraviolet rays hitting the skin.

Let's first look at the relationship of ultraviolet radiation to the Earth's surface.

looking at the equator, we were bombarded by high levels of ultraviolet radiation.

Looks good. But in the ultraviolet, we're considering it safe without a mask.

And then I put some ultraviolet filters on my camera and took a very, very long exposure with the particular frequencies of ultraviolet light and this is what I got.

But they vary even more, possibly moving towards infrared and ultraviolet in the extremes.

Here's another little flower different range of ultraviolet frequencies, different filters to match the pollinators.

In the winter, when you are skiing in the Alps, you may experience ultraviolet radiation.

The sudden increase of ultraviolet rays made the researchers believe in the existence of ozone holes.

And that could be the basis of a sunscreen because sunscreens work by absorbing ultraviolet light.

Conditions were significantly colder, but they were also less intense with respect to the ultraviolet regime.

Uh, that is correct. With the ultraviolet light operative, there is no need for your masks.

Then you expect that there'll be more effect in the ultraviolet to then say in the red.

Then there's ultraviolet light. it's good for a nice suntan, but otherwise dangerous for the human body.

The TOMS 7 satellite data, shown here, show the annual average ultraviolet radiation at the Earth's surface.

The incrementally cooler colors blues, greens, yellows, and finally grays indicate areas of much lower ultraviolet radiation.

So here, further data that ultraviolet that's sunlight has benefits on the blood flow and the cardiovascular system.

And so what we did was we took a bunch of volunteers and we exposed them to ultraviolet light.

The things that are ordinarily ultraviolet would be X rays to you so you better have some protection in front of you.

With this kind of imaging this kind of infrared, ultraviolet, invisible light imaging we were never going to image through the gold ground forgeries.

lots and lots of ultraviolet radiation and the melanin this wonderful, complex, ancient polymer compound in our skin served as a superb natural sunscreen.

And the good thing about perceiving ultraviolet is that you can hear if it's a good day or a bad day to sunbathe, because ultraviolet is a dangerous color, a color that can actually kill us, so I think we should all have this wish to perceive things that we cannot perceive.

Now, what we were careful to do was, vitamin D is made by ultraviolet B rays and we wanted to separate our story from the vitamin D story.

Because the problem there is just as severe, but it is more sinister, because vitamin D deficiency, from a lack of ultraviolet B radiation, is a major problem.

For two years, I searched for a fiber that could survive ultraviolet rays, salt, air, pollution, and at the same time remain soft enough to move fluidly in the wind.

Now, the problem is, that the gas, at that temperature emits primarily in hard ultraviolet to very soft x rays and those wavelengths are very effectively absorbed by interstellar hydrogen.

Also, this will depend on the bandpass, because most of the light produced by luminous stars in ultraviolet, then bluer will be more affected by star formation than the red ones.

And what Darwin could not appreciate, or didn't perhaps want to appreciate at the time, is that there was a fundamental relationship between the intensity of ultraviolet radiation and skin pigmentation.

I think there's something poetic here, that these pictures taken with ultraviolet filter, the main use of that filter is for astronomers to take pictures of Venus actually the clouds of Venus.

Just in case you think that all yellow flowers have this property no flower was damaged in the process of this shot it was just attached to the tripod, not killed then under ultraviolet light,