Sentences with phrase «hydrogen nucleus»

(Hydrogen gas is two - atomic and normal hydrogen nucleus is just one proton, with neutron added we have deuterium.)

In a direct elastic collision, the neutron will give all its momentum to the hydrogen nucleus.

When an antineutrino hits a proton — a hydrogen nucleus in a water molecule in the giant tank — it transforms that proton into a neutron and a positron.

In order to determine the mass of the strange hydrogen nucleus as accurately as possible, the nuclear physicists observed the radioactive decay of the nucleus using a combination of several magnetic spectrometers.

Wüthrich showed that such information could reveal the location of each hydrogen nucleus, and hence the structure of the molecule.

The scientists prepared the molecules so that the temperature — judged by the probability of an atom's nucleus being found in a higher energy state — was greater for the hydrogen nucleus than for the carbon.

But, more excitingly, each group, independently, is already finding a hint of a discovery at c. 125GeV (this is about 133 times the mass of the proton = hydrogen nucleus).

Meanwhile, science can characterize the content of deuterium (a hydrogen nucleus with a proton and a neutron) to the usual quality limits by looking at a spectra from 1000 hydrogen atoms.

This theory assumes that the heavier elements have properties which can only actually result from a very rare process in the universe which makes several hydrogen nuclei fuse into heavier ones.

Without hydrogen there would subsequently have been no heavy elements, which were formed by the fusion of hydrogen nuclei.

High temperatures and extreme densities in the center of a star allow hydrogen nuclei to slam together and create helium, liberating copious amounts of energy.

Pons and Fleischmann's infamous explanation was that hydrogen nuclei were fusing inside the metal rods.

Fusion is commonplace in stars, where hydrogen nuclei fuse in superhot plasma, but temperatures that high are hard to achieve on Earth.

HIGH - VOLTAGE POWER You will need at least 20,000 volts * and a 10 - milliamp current to create enough heat to crush those hydrogen nuclei together.

The team looked at the alignment of the spins of carbon and hydrogen nuclei in molecules of methyl iodide.

ITER's ultimate aim is to generate energy in the same way that the sun does, by fusing hydrogen nuclei to form helium.

The researchers flipped the spins of the hydrogen nuclei to control electrical current flowing though the OLED, making the current stronger or weaker.

The fusion reactor, which aims to produce virtually limitless power by fusing hydrogen nuclei, is ready to begin construction.

So the distribution of electrons striking the detector matched the wave function the electrons had at the moment they left their hydrogen nuclei behind.

Immense heat, pressure and magnetic fields ionise and contain the gas, turning it into a plasma in which hydrogen nuclei fuse to form helium nuclei, releasing energy.

Most of the cosmic rays that reach Earth are hydrogen nuclei, but those are so common that, by themselves, they do not carry much distinctive information.

Hydrogen nuclei each consist of a single proton, orbited by an electron.

The most obvious example is a fusion reactor that has been running smoothly for more than 4 billion years: the sun, which fuses hundreds of millions of tons of hydrogen nuclei into helium every second.

Wüthrich found a way to determine the precise shape of a very large biomolecule by studying how its hydrogen nuclei wobble when exposed to carefully tuned magnetic fields — a phenomenon known as nuclear magnetic resonance, or NMR.

Their hope was that the neutrons shooting into the acetone would collide with the carbon and hydrogen nuclei, and this would create disturbances that would «seed» the bubbles produced by the sound waves.

The aligned hydrogen nuclei are not stationary, but precess about their axes like children's tops.

There, heat is generated from the fusion of hydrogen nuclei.

For example, helium nuclei will be deflected twice as much as hydrogen nuclei of the same energy.

The atomic nuclei (especially hydrogen nuclei) behave like gyroscopes.

The essence is that the stars are on the main sequence during most of their life time and «burn» hydrogen in this time («burning» is an often used word here; in reality it's not a chemical reaction, but a nuclear reaction: hydrogen nuclei are fused to helium nuclei).

They bombarded a proton target with polarized, heavy hydrogen nuclei known as deuterons.

In a hydrogen bomb, hydrogen nuclei merge (fuse) to become helium.

To squeeze enough hydrogen nuclei together to form some other light elements supposedly requires the high temperatures inside stars.

Within the Sun's core, nuclear fusion reactions take place, with hydrogen nuclei being fused into helium nuclei.

They consist mostly of protons, in other words hydrogen nuclei, but they also can consist of nuclei of Helium or heavier elements, of electrons and other subatomic particles.

There are 18 slides covering the theory behind the precession of hydrogen nuclei, how RF pulses make the nuclei change their spin state and how the subsequent relaxation allows images to be created.

In stars, the nuclear reactions are primarily the fusion of hydrogen nuclei to form helium nuclei.

«It takes tremendous amounts of energy for protons (hydrogen nuclei) to combine and change into neutrons.

THE Sun generates huge amounts of energy by combining hydrogen nuclei into helium.

Not exact matches

NIF's goal is to focus the intense energy of 192 giant laser beams on a BB - sized target filled with hydrogen fuel, fusing the hydrogen atoms» nuclei and releasing many times more energy than it took to initiate the fusion reaction.

The present estimate is that, since hydrogen forms 25 % of all matter by mass and helium 75 % of all matter by mass, all the heavier nuclei appear to be extremely rare — not more than 1 or 2 % by mass.

At the very bottom of the board we have the 92 simple chemical elements (from hydrogen to uranium) formed by groups of atomic nuclei together with their electrons.

Pagels (1984) points out that if the relative masses of protons and neutrons were different by a small fraction of 1 per cent, making the proton heavier than the neutron, hydrogen atoms would be unstable since the protons that constitute their nuclei would spontaneously decay into neutrons.

The precision of previous measurements based on hydrogen atoms was limited by uncertainties related to the internal structure of the proton inside its nucleus.

That made sense as a solar power source, because a proton is the nucleus of a hydrogen atom and stars are made mostly of hydrogen.

Analysis of the water leaving Venus's atmosphere, however, shows that many of the hydrogen ions are actually a stable isotope of the element called deuterium, which consists of a proton and a neutron (rather than just a proton) in its nucleus.

Others believe that a symbiosis based on hydrogen could directly account for the nucleus.

DEUTERIUM The atomic nuclei in the hydrogen plasma are what collide to create fusion inside the chamber.

With no nuclear fusion to sustain them, they collapse into Earth - size balls of tightly bound carbon and oxygen nuclei with an outer layer of hydrogen plasma (disrupted atoms).

When the two nuclei's energy states were uncorrelated, the heat flowed as normal, from hot hydrogen to cold carbon.