The color temperature of a light source is the temperature of an ideal black body radiator that radiates light of comparable hue to that of the light source.

Instead of one point in the brain, we can devise devices that span the brain, that can deliver light into three dimensional patterns arrays of optical fibers, each coupled to its own independent miniature light source.

Sunshine is the main source of vitamin D.

It measures the absorption of light in a sample The neat thing about this is, you have light source that flickers on and off at about 1,000 hertz, another light source that detects that light at 1,000 hertz, and so you can run this system in broad daylight.

The appearance of pigments is intimately connected to the color of the source light.

These stray rays of source light contribute to a slightly less saturated color.

And what I'd like to tell you is we don't see shadow, and we don't see light too we see the source of the light.

It's the spotlight on the artist that helps you to focus.

In geometrical optics, a focus, also called an image point, is the point where light rays originating from a point on the object converge.

Those described as having only light perception have no more sight than the ability to tell light from dark and the general direction of a light source.

Neither the flash point nor the fire point is dependent on the temperature of the ignition source, which is much higher.

And at this point we've come 100,000 light years from here.

Psylocke's telekinetic manifestations produce visible radiance in the physical world, and so she can use her psychic katana as a makeshift light source in areas of darkness.

The Synchrotron Light Research Institute (SLRI) is a Thai synchrotron light source for physics, chemistry, material science, and life sciences.

And you enter that space, and you feel like, Wow! This is so impressive, just because of this focal point, this huge light source in the middle.

The photodiode measures the intensity of the light reflected back from the light source as the tip crosses each bar and space in the printed code.

A candle is a solid block of wax with an embedded wick which is ignited to provide light and in some cases a fragrance.

In the test, light from a point source is focused onto the center of curvature of the mirror and reflected back to a knife edge.

It is only possible to verify experimentally that the two way speed of light (for example, from a source to a mirror and back again) is frame independent, because it is impossible to measure the one way speed of light (for example, from a source to a distant detector) without some convention as to how clocks at the source and at the detector should be synchronized.

There is a phallus, clear acrylic phallus, with a camera and a light source, attached to a motor that is kind of going like this.

With no natural light source, Siva is one of these amazing places that when you look up you see a perfect tapestry.

More recently, at Einstein University, they just determined that fungi use radiation as a source of energy, much like plants use light.

Tourism is important, of course, and from that standpoint Europe s diversity is a unique source of attractiveness.

As Jonathan Brown notes, each figure seems to carry its own light within or reflects the light that emanates from an unseen source .

The reduction in intensity of a light wave propagating through a medium by absorption of a part of its photons is often called attenuation.

Although we had it on good authority that they were technically rigorous and legally sound, they simply were never discussed.

And what we've done is that we've turned the bullet into a light source, so that bullet is actually shining, and it makes it really easy to find these fragments.

By maintaining a constant angular relationship to a bright celestial light, such as the moon, they can fly in a straight line.

Now it's very hard to see the Earth there, it's called the Pale Blue Dot picture, but Earth is suspended in that red shaft of light.

This effect is most clearly seen with a high contrast field, such as a point of light on a dark background.

An extremum in the light travel time between two points A and B is equivalent to an extremum of the optical path length between those two points.

You can actually see the point when I know what I'm doing, and a lot of light and dark comes into it.

In the diagram at left, a light ray PO strikes a vertical mirror at point O, and the reflected ray is OQ.

I get you tapping on it, and I get me shaking it, but from my senses' point of view, that is combined together into one source of information.

And it would be self illuminated, because now the Sun's gone, we have no other source of light so let's make our little Earth self illuminated.

Source Eurostat .

Celestial objects are so far away, that even after travelling great distances, the change in angle between the moth and the light source is negligible further, the moon will always be in the upper part of the visual field, or on the horizon.

The flash point is not to be confused with the autoignition temperature (which does not require an ignition source) or with the fire point (the temperature at which the vapor continues to burn after being ignited).

Telperion had dark leaves (silver on one side) and his silvery dew was collected as a source of water and of light.

This process might bear similarity to CO2 fixation via visible light, but instead using ionizing radiation as a source of energy.

The red dot is the laser light of the submarine Alvin to give us an idea about how far away we are from the vents.

Power supply

Source of life.

The light grid will have a light, be lit up at night and give a kind of light ceiling.

But the high point was the realization of a childhood dream harnessing the raging powers of Niagara Falls, and bringing light to the city.