Why do some materials glow in ultraviolet - UV - light?

Some minerals that glow under ultraviolet light are scheelite, amber, halite.

-minerals glow due to fluorescence from ultraviolet light.

Do you mean, "Why does coral glow in ultraviolet light?", "Why does some coral glow in the dark?", or something else. Please be more specific.

Those are 'fluorescent' materials.

Ultraviolet rays from car headlights or street lamps reflect the reflected areas and makes the colour glow. add Light may be reflected from a surface, and the apparent colour of the surface is due to the absorption of all the other colours. If a surface is smooth compared with the wavelength of the incident lightwave, then an image may be seen reflected from the surface. [About 1/20 of a wavelength would be good.] If the…

Ultraviolet rays are blocked by all solid materials except for solocryl or starphire glass. Some acrylic materials are made specifically to block ultraviolet rays.

The electrons in glass will absorb ultraviolet light, but not visible light. Thus, glass protects us from some frequencies of UV radiation.

Floureseence

There are several materials that refract light. Materials that are see through refract light as well as water, diamonds and air refracting some light.

all materials reflect light, which makes color but more atomically dense materials reflect light better

Light doesn't go through opaque objects; this is the definition of opaque. The energy from the light is absorbed by the object. A transparent material allows light through with enough clarity that you can clearly see objects on the other side of the material. Most glass is transparent. Transluscent materials will glow with light coming from the other side, but the light is too scattered by the material to allow you to see objects clearly…

If human vision could detect ultraviolet light as well as the visible spectrum, ultraviolet light would appear to be just another color. Of course, because we can't see ultraviolet, and can only see three basic colors, the idea of a new color is impossible to completely grasp, since all the colors we see are based off of three primary colors. The addition of ultraviolet light to the spectrum of visible light would allow us to…

There are some rubies, especially Thai, that have too high an iron content to grow under black light. But unless the iron content is too high, rubies glow pinkish-red under a black light.

In general, it is ultraviolet light (the UV ray) that causes sunburn. Ultraviolet light is of a higher frequency than visible light, which means shorter wavelength, and higher energy. UV rays tend to do some tissue damage and burn skin causing sunburn.

Research has found that some anemone have a protein, now named cerFP505, that makes them glow when hit with a certain wavelength of light. If it is hit with a wavelength of 490 nanometres it will switch on, when hit with a light of 400 nanometres it will switch off.

All glow worms glow during their larval stage. Some also glow in the adult female state. There are three main familes of glow worms (actually beetles or flies). * Lampyridae (Europe and Asia, usually called fireflies or lightning bugs). The wingless adult females glow with a yellow-green colored light to attract males and as a warning signal to predators (they are mildly toxic). The larvae can also emit light. * Phengodidae (North and South America…

Some examples of radiation and UV light include sunlight and ultraviolet light bulbs. Each produce special wavelengths of light which are not seen by the naked eye.

The filament inside is heated. Once it gets hot enough, it dissipates some of the energy as heat and light.

The term "black light" is commonly used to refer to ultraviolet waves that are invisible to the human eye, but still carry energy. Some materials have the property that they can absorb UV energy and then re-emit it at visible wavelengths. The eye and brain interpret these visible waves as having colours.

A perfect example is a common glow stick. In a glow stick, phenyl oxalate, fluorescent dye, and hydrogen peroxide mix to produce a chemiluminescent reaction (generating light from chemical energy).

Ultraviolet light Heat Some chemicals - depends on the polymer Corona Discharge etc

All see-through materials. Glass is well known. Water also refracts light. Diamonds refract light a lot. Even air refracts light a little.

GLOW WORM! Some coral, that deep sea fish with a light bulb hanging in front of its eyes and others.

some are: neon-for a strong red glow argon- for a light blue color helium- for a pinkish red glow xenon- for a bright lavender glow krypton- for a yellow- white radon- for a yellowish greenish. and many more.

In short, your initial assumptions are flawed. Every different chemical compound will allow light of some wavelengths to pass through, and will absorb some other wavelengths. In the case of glass and many acrylic polymers, they both appear to be clear because most of the light in the visible spectrum passes through. It is not generally true that glass allows infrared light to pass through, nor is it generally true that acrylic polymers will allow…

ultraviolet light, or UV light, is a type of electromagnetic radiation that has a wavelength somewhere between visible light and X-rays. It is widely used throughout the world, in everything from production of usable electricity (the sun's rays are ultraviolet) to the many common uses for a simple black light. Sun Tanning All sun tanning beds use ultraviolet lights in order to simulate the effects of sunlight against bare skin. Just like real sun bathing…

Visible light, X-rays, gamma rays, infrared and ultraviolet light, microwaves and radio waves are examples of electromagnetic radiation

Effectivelly, all materials reflect light to some degree or another. Even clear materials (such as glass) reflect a small amount of light, and, under the right circumstances, can act as a mirror, even without any backing matterial.

The ozone layer prevents a portion ultraviolet light from reaching the Earth's surface. Full strngth ultraviolet light would damage plants and animals by sunburning them or causing cancer. The thinner the ozone layer the more potential there is for these adverse effects.

they glow when the light falls on their eyes... this is due to refraction they acts as IR camera to watch in dim light of night

Lots of different things can glow under a black light, mostly anything neon or fluorescent will glow. Some fun things include tonic water, because of the quinine, highlighters, laundry detergent, and petroleum jelly. In the Arizona desert, Scorpions will also show up in black light.

There are several ways. One of them is chemoluminescence. This is the method for things like glow sticks and fireflies. In this case, a chemical reaction occurs which emits energy in the form of light. (In fireflies or other living organisms, it's sometimes called bioluminescence, but the underlying principle is the same: a chemical reaction is occuring.) Another possibility is phosphorescence. This is what's going on in most "glow-in-the-dark" paints and toys; you expose it…

Here are a few of them: Radio waves Microwaves Heat waves Infrared waves Orange light Yellow light Green light Ultraviolet waves X-rays

See the Related Questions link to the left of this answer: "How do UV-B rays affect people?"

The rays that tan you in a sunbed/tanning-bed. The light you can see under these beds is not doing the tanning.

Ultraviolet light will damage, and potentially kill plants. The light waves within the visible spectrum are the best, so while sunlight isn't perfect (due to the UV rays), it's probably the best thing short of a lamp (especially since it won't cost you anything). There are some UV resistant plants, but after doing some of my own research online, they seem to be few and far between.

Materials which do not allow the transmission of light are called opaque. These substances have chemical compositions, some of which are referred to as absorption centers. This means that the material absorbs all of the light wave frequencies, not just some while reflecting other frequencies.

All materials reflect light to some extent. Those which reflect it least have matte black surfaces, so this is often a function of how the substance is prepared rather than what it's made of.

To attract mates Chemicals in the firefly's abdomen produce a light. They use that light to attract mates in mating season. The light they produce is cold light. Usual light is warm. In some species of fireflies, female fireflies can't fly.

The Sun's light is reflected off the Moon, making it appear to glow. The Moon is not reflecting light from the Earth. Although some sunlight is reflecting off the Earth to the Moon.

I'm not an expert but bees and butterflies are attracted to bright flowers. However some are attracted by the natural colors and ultraviolet light.

Yes, all light sources produce some heat, but it may be very little. Glow sticks, for example, create practically no heat at all.

I don't see that this is really a literary question. Dark light would most usually refer to some wavelength that the human eye does not see, particularly the ultraviolet.

If the glass is translucent then some is reflected back while some frequencies pass through. Ultraviolet is blocked by glass.

In most cases the light you see is carbon, although various gasses also glow in colors. But be careful, some flames (like hydrogen) are invisible--which is dangerous if you work near it.

Cats and some other animals have a layer in their eyes called the tapetum lucidum, which acts as a reflector. This gives their eyes a 'glow.' Cats eyes are not a source of light.

Infrared light (the invisible light emitted from heat) doesn't pass through regular tempered glass like visible light, it might pass through other clear materials tho including some types of glass, it depends on the material.

hard, strong, light weight, effective, expensive.

Some diamonds are fluorescent. This means that light enters the stone and the wave length is converted to a longer light wave. Not all diamonds are fluorescent. No diamond will 'glow in the dark' without first being exposed to a light source.

One problem which I know is unnatural light (such as lightbulbs) causing light pollution, there the glow blocks out the stars above. The only other thing which I (a non-expert on this) can think of is blindness from staring at them too much, natural or not.