Sentences with phrase «hydrogen nuclei»

This means that it generates its energy by nuclear fusion of hydrogen nuclei into helium and is in a state of hydrostatic balance — neither contracting nor expanding over time.

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

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.

Fusion power — the production of clean, near - limitless energy by smashing hydrogen nuclei together — is a difficult process that has yet to be achieved.

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.

H - bombs fuse together tiny hydrogen nuclei known as deuterons and tritons to create helium nuclei, along with the most powerful explosions in the human arsenal.

One time in 10 billion, however, two heavy hydrogen nuclei fused to make a helium atom and a particle called a pion, which helps bind an atomic nucleus together.

This combination of light elements to form somewhat heavier ones occurs in the stars and of the sun; in the sun effectively what happens is that hydrogen nuclei combine to form the more stable nuclei of helium.

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).

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.

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

The bubbles indicate the presence of neutrons, a by - product of fusion — an energy - releasing process in which two hydrogen nuclei crash together and form a helium nucleus.

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.

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

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.

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

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.

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.

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

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

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

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 is so because the present theory of the periodic system explains the heavier nuclei as being composed of lighter ones, ultimately as being composed of hydrogen nuclei (protons) and neutrons (which might in turn be regarded as a kind of composition of protons and electrons).

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

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

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 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.

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

The wavelike electrons and the wavelike proton (a hydrogen nucleus) interact with each other and with other atoms nearby, in essence getting pulled out of their own molecules.

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.

The ALICE collaboration has measured the difference between mass - to - charge ratios for deuterons (a proton, or hydrogen nucleus, with an additional neutron) and antideuterons, as well as for helium - 3 nuclei (two protons plus a neutron) and antihelium - 3 nuclei.

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

These create energy in the same way as the sun, by fusing a superheated plasma of hydrogen nuclei to form helium.

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.

Physicists and astronomers believe that the Sun shines because of the conversion of hydrogen nuclei (protons) to helium nuclei (alpha particles) in the solar core (see Figure 1a).

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

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

The rate of wobble depends on both the strength of the applied field and the magnetic fields from the surrounding atoms, so each hydrogen nucleus produces a radio signal of a slightly different frequency.

In MRI, the patient's body is surrounded by an intense magnetic field, making the hydrogen nuclei in water in the body line up like bar magnets.

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.

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.

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

Of particular interest to the researchers is the still unanswered question of whether this binding energy changes when the hyperon is present in an equally heavy helium nucleus instead of a hydrogen nucleus.

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).