Sentences with phrase «by photons»

In this case, as we are talking about heat, we are talking about energy in motion carried by photons as gravitational energy that travels at the speed of light.

The normal, fridge magnet type of spin interactions, mediated by photons, operate only at very short distances.

Both thermal processes and those activated by photons or electrons are studied.

Now, proponents of technology that seeks to propel spacecraft using the pressure exerted by photons from the sun on thin «solar sails» look set for another chance to get their idea off the ground.

«The gas which forms the major part of the insterstellar medium,» explains Jorge García Rojas, a researcher at the IAC who is the first author on the paper «can be observed because its atoms are ionized by the photons emitted by the hot stars embedded inside it (which can either very massive stars, or white dwarfs, which are also very hot).

In the traditional view of photosynthesis, the energy carried by photons streaming from the sun is transferred by bouncing from one chlorophyll molecule to the next, a process that ultimately builds simple carbohydrates from water and carbon dioxide.

The team measured two aspects of neutron decay: the energy spectrum of the photons, and also its branching ratio, which can provide information on how frequently the decays were accompanied by photons above a specific energy.

When an already excited atom is hit by another photon, however, it can't absorb it; instead it releases a photon of the same color, or frequency.

Electrons within a target atom are first excited by a photon contained within the pump pulse, which is then followed after a short delay by a second photon in a probe pulse.

An airplane has flown the expanse of U.S. airspace powered by photons alone.

Images of a cat - shaped cutout created by photons that, due to quantum entanglement, didn't go through the cat cutout.

To glimpse the oldest light in the universe, simply tune an old television between channels: the tiny specs dancing on the screen result from the antenna being bombarded relentlessly by photons that were emitted shortly after the big bang, some 13.8 billion years ago.

This ability could have implications for optical computing, a type of computing in which electrons are replaced by photons that could greatly enhance processing power but has proven extremely difficult to engineer.

Leik Myrabo at Rensselaer Polytechnic Institute turned science fiction into reality by demonstrating that a light sail could be propelled by photons emitted by a laser in a vacuum, which may lead to rapid interstellar travel.

If the spots of light made by the photons arriving at the detector are added together over time, they still form an interference pattern, just as if each photon goes through both holes and interferes with its own passage through the experiment.

Planetary scientists expect that mixtures of dust and ice turn black after billions of years of irradiation by photons and high - energy particles from the sun, but they don't yet know the details of that composition.

«The electron in WSe2 that is initially energized by the photon has an energy that is low with respect to WSe2,» said Fatemeh Barati, a graduate student in Gabor's Quantum Materials Optoelectronics lab and the co-first author of the research paper.

Or, it could be a pattern produced by photons polarized by scattering off flecks of silicon dust floating around the Milky Way, a younger B - mode pattern that is identical to the 13.8 - billion - year - old pattern.

Ligand - mediated receptor assembly was measured by photon transfer from the photon donor to the fluorophore resulting in fluorescence emission.

Since the residual noise for this observations are dominated by photon noise and thermal background, longer exposures in good observing conditions could further improve the achievable contrast limit.

canopy is into the sun 24/7 so the reason they don't have to eat is their pulling all of their electrons that are excited by photons uh — in those two ways.

Other notable indies that were back - ported to the Commodore hardware included Kobo64 (an excellent conversion of Kobo Deluxe, the 8 - way scrolling, base - infiltrating, bullet - hell shmup from the dawn of the current indie scene), Devil Ronin (a C64 conversion of a faux - «retro remake» based on a fictional C64 release) and the now - free - to - download final version of Assembloids (a conversion of the Flixel - based casual puzzler Quartet by Photon Storm).

We would gain access to a rich set of phenomena, including, for example, quantum magnetism or spin - spin - interactions mediated by photons.

«When this specially engineered wafer is hit by photons, the electric field helps separate photogenerated electrons and holes to drive the production of hydrogen and oxygen molecules efficiently,» Chowdhury says.

The mitochondria are charged up by photons of light emitted from the laser thereby increasing ATP within the cell.

MPQ scientists realize mathematical operations with a quantum gate between two trapped atoms that is mediated by photons.

The CMB is a literal firewall on efforts to peer further back in time using light — nearly all information about earlier events carried by photons was erased as they bounced aimlessly within the hot, dense plasma that suffused the infant universe.

By building up images photon by photon, HESS can thus map astronomical objects in gamma rays.

The force exerted by those photons is minuscule but persistent.

By transmitting the energy carried by photons to moving electrons it is possible to transport information in structures narrower than optical fibers.

«The result is a two - dimensional solid where the atoms are held together and talk to each other not by phonons — as in regular matter — but by photons.

Altarelli said: «The directors of the largest European research organisations are experienced in large scale scientific projects; they were quite impressed by the size of our experiment hall, the experiment hutches, and above all by the photon tunnels and the equipment there.»