Sentences with phrase «fusion of hydrogen»

According to theory, that is the kind that should be generated by the nuclear fusion of hydrogen in the sun.

The total amount of energy that a star can generate through nuclear fusion of hydrogen is limited by the amount of hydrogen fuel that can be consumed at the core.

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.

Nuclear fusion of hydrogen into helium is the process that powers stars.

While Star C is a much closer stellar companion of Star A than Star B, it apparently lies near the theoretical minimum mass limit of 0.75 to 0.80 Solar for core fusion of hydrogen (more from Palomar Adaptive Optics System Results).

I believe that the sun is powered by the nuclear fusion of hydrogen in to helium, because the spectrum of the emitted light is exactly as predicted by theory and tested by experiment on earth.

Rossi posits that his E-Cat features a self - sustaining process in which electrical power input initiates fusion of hydrogen and lithium from a powdery mixture of nickel, lithium, and lithium aluminum hydride to form a beryllium isotope.

Once nuclear fusion of hydrogen becomes the dominant energy production process and the excess energy gained from gravitational contraction has been lost, [9] the star lies along a curve on the Hertzsprung - Russell diagram (or HR diagram) called the standard main sequence.

Stars are in a constant state of flux, their luminosity changing depending on the elemental fusion of hydrogen and helium.

I expect that might be Lerner fusion — a small decrease in plasmiod radius should see fusion of hydrogen and boron.

Stars are fueled by the nuclear fusion of hydrogen into the slightly denser and heavier element helium.

Their mass is too small for full nuclear fusion of hydrogen to helium (with a consequent release of energy) to take place, but they are usually significantly more massive than planets.

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

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

But Michael Skrutskie, a University of Virginia astronomer and a member of the WISE science team, is especially interested in the satellite's ability to pick out previously unknown brown dwarfs, objects larger than planets but too small to sustain nuclear fusion of hydrogen.

That is in contrast to the fusion of hydrogen and other elements which powers mature stars such as the Sun.

The prime energy producer in the sun is the fusion of hydrogen to helium, which occurs at a minimum temperature of 3 million kelvin.

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

After a star has formed, it generates energy at its hot, dense core through the fusion of hydrogen atoms into helium.

As a star that has evolved out of the «main sequence,» Gacrux has shifted fully from the fusion of hydrogen to helium at its core to the fusion of helium to carbon and oxygen, with trace activity of other nuclear processes.

As a star that has evolved out of the «main sequence,» Arcturus has fully shifted from the fusion of hydrogen to helium in at its core to the fusion of helium to carbon and oxygen, with trace activity of other nuclear processes.

As a star that has evolved out of the «main sequence,» Pollux has fully shifted from the fusion of hydrogen to helium at its core to the fusion of helium to carbon and oxygen, with trace activity of other nuclear processes.

As a star that has evolved out of the «main sequence,» Aldebaran A has fully shifted from the fusion of hydrogen to helium at its core to the fusion of helium to carbon and oxygen, with trace activity of other nuclear processes.

As Fortney explained, brown dwarfs are formed in the same vast clouds that produce stars by the hundreds, but don't have sufficient mass to build the internal pressure needed to begin the nuclear fusion of hydrogen that defines a star.

Controlled nuclear fusion has been an aim of scientists ever since they discovered that the fusion of hydrogen to helium power the Sun and most stars.