Sentences with phrase «photons travel»

Of every 2500 molecules there is one CO2 and I have read that CO2 emitted photons travel no more that 10 meters before capture near the ground so water might travel something like 50 centimeters to just be mainly thermalized.

Photons travel at the speed of light, and thus arrive at their destination at the same moment that they leave their source.

Now consider what happens if the photons travel among different systems of non-photons with different temperatures.

We detect the CMB here on Earth when its constituent microwave photons travel to us through space.

In the UChicago experiment, photons travel back and forth between mirrors, while their side - to - side motion mimics the behavior of massive particles like electrons.

Careening through hairpin turns and racing down straightaways, light packets called photons travel the distance in this nanoscale photonic circuit.

As photons travel at different speeds through each fluid, light is refracted, or bent, at the boundaries between the patches and the mixture ends up opaque.

The light photons travel differently through tumors than through normal tissue.

These results indicate that the polymers studied have large cross sections for stimulated emission, that population inversion can be achieved at low pump energies, and that the emitted photons travel distances greater than the gain length within the gain medium.

In this way, photons travelling in one direction interact with objects inside the loop in one order, while photons travelling the opposite direction interact with objects in the opposite order.

He worked on one of the first quantum circuits to run Shor's algorithm in 2007: a table - top setup that sent photons travelling through the air rather tiny guides on a chip.

In doing so, as the CMB photons traveled through this hydrogen gas, it absorbed a particular frequency — so rather than look for a specific emission, astronomers have been looking for a specific type of absorption, or a certain frequency of CMB radiation that was missing.

As the CMB photons traveled through the interstellar neutral hydrogen around the time the first stars came to life, a fingerprint of stellar birth was embedded in these photons.

Estimates of the «photon travel time» range from as much as 50 million years [8] to as little as 17,000 years.

How far does an emitted photon travel before it is absorbed again by another molecule?

Re 392 Chris Dudley — while it makes intuitive sense that a spatially - invariant net photon flux could be sustained by a constant gradient in local equilibrium photon concentration (proportional to T ^ 4 for a grey gas, assuming constant real component of index of refraction), the calculation of what that gradient should actually be is made a bit more complicated by the fact that photons travelling in different directions will on average be absorbed over longer or shorter vertical distances.

Generally, absorption lines in the absence of any line - broadenning, would absorb over an infinitesimal portion of the spectrum, and saturate (ie reduce the photon travel distances to a scale where there is very little temperature variation) relatively more quickly.

You have to look at the absorption crosssection per molecule of CO2 and count up the number of CO2 molecules per unit area that would be in the path of a photon travelling a certain distance in the atmosphere you can understand how such a low concentration of CO2 can have such a large effect.

When the photon travels through a gravitational field, its frequency and therefore its energy will change due to the gravitational redshift.

To have any effect, you need enough CO2 that the average distance an IR photon travels before being absorbed would have to be a very small fraction of the distance between the walls.

Amplitudes can not be cancelled if, in fact, there are no photons traveling 180 degrees out of phase with each other.

Indeed, I believe, even at the historical 270 or 280 ppm level of CO2, each photon traveled a small fraction of the height of the Atmosphere before being absorbed and re-emitted.

Who knew that a photon travelling at the speed of light, carrying a tiny bit of energy with it, and having charactersitics identical to other photons save for direction, would know if that packet of energy is allowed to do work or not?

Not exact matches

Color psychologist Angela Wright explains the phenomenon this way: «Color travels to us on wavelengths of photons from the sun.

Thus, creativity - esse is not only the prius for the human world, but also for the most remote black hole, for a comet's energy, and for the photons that travel billions of years in the vast voids between the galaxies.

In a few thousand years of recorded history, we went from dwelling in caves and mud huts and tee - pees, not understanding the natural world around us, or the broader universe, to being able to travel through space, using reason to ferret out the hidden secrets of how the world works, from physics to chemistry to biology, we worked out the tools and rules underpinning it all, mathematics, and now we can see objects that are almost impossibly small, the very tiniest building blocks of matter, (or at least we can examine them, even if you can't «see» them because you're using something other than your eyes and photons to view them) to the very farthest objects, the planets circling other, distant stars, that are in their own way, too small to see from here, like the atoms and parts of atoms themselves, detected indirectly, but indisputably THERE.

Meanwhile, the cosmic rays that escaped travel through intergalactic space and interact with photons to produce the glow of gamma rays.

Before that time, the universe was an opaque fog, so hot and dense that photons could not travel very far before bumping into other particles and changing direction.

THE EDITORS REPLY: Space is expanding, carrying objects such as galaxies and photons with it, so light travels a greater distance than a simple calculation (such as speed multiplied by time) might suggest.

«If Einstein's Equivalence Principle is correct, any time delay that might occur between these two photons should not be due to the gravitational fields they experienced during their travels, but should be due only to other physical effects,» Mészáros said.

Interactions between the electrons and the accumulating photons as they travel through the undulator generate coherent laser light (Science, 10 May 2002, p. 1008).

In their experiment the scientists replaced the park with an interferometer, a device which allows a single photon to travel two paths at the same time.

Einstein's Equivalence Principle requires that any two photons of different frequencies, emitted at the same time from the same source and traveling through the same gravitational fields, should arrive at Earth at exactly the same time.

The longer these photons have to travel, the greater their chances of colliding and the...

Would Scarlett Johansson be trying to work out how neutrinos travel faster than photons, or is Angelina Jolie working on the hard problem of consciousness?

Due to their entanglement, each member of a photon pair has to travel the same distance.

Although it's possible to create photons in almost any shape, more complex configurations become distorted when travelling through an optical fibre, making them harder to understand at the receiving end.

These multilayered mirrors make the photons at the front of a pulse travel further than the slower photons at the rear do.

You don't need to set the universe in a spin to see time travel in action — so what happened when a photon with a quantum gun went back to kill itself?

More wildly, future iterations of Sprites could become Breakthrough's hoped - for «StarChips» — spacecraft integrated with gossamer - thin, meter - wide «lightsails» that would travel at 20 percent the speed of light to Alpha Centauri or other nearby stars, propelled by high - powered pulses of photons from a gargantuan ground - based laser array.

And which kind of measurement to perform on this photon is decided by a random - number generator at the same moment when the photon pairs are created at a distant location, about a mile away, which means that no signal could travel fast enough to influence this.

By twisting photons into spirals as they travel, large amounts of information can be encoded in light and used for long - distance communication

It eliminates the need for information traveling along the Internet to be converted from photons (light pulses) to electrons and back - often hundreds of times for a single message traveling coast to coast.

Information often travels through fiber - optic cables as photons, particles of light.

This was the paper in which he proposed that light is concentrated in traveling energy packets, which later came to be called photons.

What's less intuitive is the fact that photons fired one at a time toward two slits still demonstrate the same wavelike interference behavior after they pass through — it's as though individual photons are able to travel through two slits at once while still arriving at one location!

A photon does not pass through time at all: Traveling at the full speed of light, it experiences being everywhere in the universe all at once.

This artist's impression shows how photons from the early universe are deflected by the gravitational lensing effect of massive cosmic structures as they travel across the universe.

A single photon — a carrier of quantum information — travels like a spinning coin, in a superposition of states.

That's how long after the Big Bang the universe took to expand enough to allow photons (light particles) to travel freely.