Sentences with phrase «hydrogen fusion in»

The sun... you know, that massive ball of hydrogen fusion in the sky?

It is frequently applied to the coolest objects, including K - and M - dwarfs, which are true stars, and brown dwarfs, often referred to as «failed stars» because they do not sustain hydrogen fusion in their cores.

If HD 181433 has a mass less than Sol's but is more evolved (i.e., where it may have already shut down hydrogen fusion in its helium - rich core), then it may be significantly older than Sol's 4.6 billion years.

Other photographed objects have been too massive to be conclusively labeled planets, falling instead into the brown dwarf category (objects about eight to 80 Jupiters in size that lack sufficient mass to ignite hydrogen fusion in their cores, thereby never becoming true stars); have been found to themselves orbit brown dwarfs rather than stars; or have not been shown to be gravitationally bound to a star.

Not exact matches

And in the U.S., the National Ignition Facility is using lasers to ignite hydrogen plasma as it experiments with inertia confinement, also known as laser fusion.

The International Thermonuclear Experimental Reactor program in the south of France will use magnetic fusion and employ strong magnetic fields to hold and fuse hydrogen plasma.

This radioactive isotope of hydrogen is only manufactured in nuclear power plants and would cost any fusion generator $ 100 million per week.

In Helion's approach to fusion, lightweight isotopes such as hydrogen or helium can be fused under intense heat and pressure.

Image: NIF Scientists with the National Ignition Facility (NIF) at Lawrence Livermore National Laboratory announced today that they have achieved a critical step in fusion research: For the first time, their hydrogen fuel has given off more energy than it took in.

In 2015, they held super-heated hydrogen plasma in a stable state for 5 milliseconds, which is a huge deal in the world of fusion researcIn 2015, they held super-heated hydrogen plasma in a stable state for 5 milliseconds, which is a huge deal in the world of fusion researcin a stable state for 5 milliseconds, which is a huge deal in the world of fusion researcin the world of fusion research.

Ab initio calculations of the equation of state of hydrogen in a regime relevant for inertial fusion applications

And those gods were an astrological parody for worship of THE SUN... You know that big bright hydrogen fusion machine in the sky that the church once believed orbited the Earth... See the only way to truly be religious and in particular a Christian is to not ask questions.

Again, astronomy appears to be a «useless» subject, but has yielded a number of practical results, from the discovery of helium to the theories of the properties of gas plasma currently important in hydrogen fusion projects.

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.

Human male sperm and human female eggs are an - alogous to the millions of tons of inactive deuterium floating harmlessly in the ocean but combine them in a fusion reaction, they instantly become the expanding energy of the Sun found in all stars as they continuously fuse more hydrogen making the const - ituents of all human life..

The lab's National Ignition Facility (NIF) creates pulses with a mammoth 1.8 megajoules of energy in an effort to heat tiny capsules of hydrogen to fusion temperatures.

This «quarksplosion» would be an even more powerful subatomic analog of the individual nuclear fusion reactions that take place in the cores of hydrogen bombs.

Because all elements in the universe heavier than hydrogen, helium, and lithium have been forged by nuclear fusion in the cores of stars and then scattered into space by supernova explosions, the find indicates that the galaxy, at the age we're now observing it, was old enough for at least one generation of stars to have formed, lived, and died.

The hydrogen atoms fuse together into heavier and heavier elements and in the fusion process the star emits radiation in the form of light, that is, energy.

In the 1950s, deuterium was used in thermonuclear weapons because nuclear fusion of deuterium atoms (or of deuterium and the heavier hydrogen isotope, tritium) releases tremendous energIn the 1950s, deuterium was used in thermonuclear weapons because nuclear fusion of deuterium atoms (or of deuterium and the heavier hydrogen isotope, tritium) releases tremendous energin thermonuclear weapons because nuclear fusion of deuterium atoms (or of deuterium and the heavier hydrogen isotope, tritium) releases tremendous energy.

Newman, who as a teen developed a fascination with turbulence as a rafting guide in Colorado, arrived at Oak Ridge in 1993 to explore a different kind of turbulence: the plasma of fusing hydrogen atoms inside experimental fusion reactors.

The device consists of a doughnut - shaped reactor called a tokamak, wrapped in superconducting magnets that squeeze and heat a plasma of hydrogen isotopes to the point of fusion.

Once the fusion gets going, Miller says, you end up with all the hydrogen that had accumulated going into helium in a flash — in other words, in a giant X-ray-producing thermonuclear explosion.

Scientists can already trigger limited fusion reactions in the lab and abundant (if somewhat uncontrolled) reactions in a hydrogen bomb.

Since relatively little matter piles up before it fuses — and fusion is a relatively weak source of X-rays — the X-rays produced in this way on a normal pulsar are dwarfed by the X-rays produced by hydrogen as it falls onto the pulsar.

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

Meanwhile, fusion researchers in Japan and the United States have produced temperatures above 900 million ° F in plasmas of deuterium and tritium, which are isotopes of hydrogen.

Stars are powered by nuclear fusion, converting hydrogen into helium in their cores.

If enough material, mostly in the form of hydrogen gas, accumulates on the surface of the white dwarf, nuclear fusion reactions can occur and intensify, culminating into a cosmic - sized hydrogen bomb blast.

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.

Aliens might want resources from our solar system (Earth's oceans, perhaps, full of hydrogen for refilling a fusion - powered spacecraft) and swat us aside if we get in the way, as we might dismiss mosquitoes or beetles stirred up by the logging of a rain forest.

Having a mass of only less than seven per cent of the mass of the Sun, they are unable to create sufficient pressure and heat in their interiors to ignite hydrogen - to - helium fusion, a fundamental physical mechanism by which stars generate radiation.

Mainstream fusion power schemes fuse hydrogen isotopes called deuterium and tritium to make helium nuclei, releasing large amounts of energy in the process.

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

These fields will do double duty: They will heat a cloud of hydrogen to the searing temperature required for fusion while forcing the resulting plasma to sit in a ring - shaped cloud away from the tokamak's walls.

In a basic fusion reaction, hydrogen atoms collide, creating helium and releasing energy.

In a 1931 article in The Strand Magazine entitled «Fifty Years Hence» 1, he described fusion power: «If the hydrogen atoms in a pound of water could be prevailed upon to combine together and form helium, they would suffice to drive a thousand - horsepower engine for a whole year.&raquIn a 1931 article in The Strand Magazine entitled «Fifty Years Hence» 1, he described fusion power: «If the hydrogen atoms in a pound of water could be prevailed upon to combine together and form helium, they would suffice to drive a thousand - horsepower engine for a whole year.&raquin The Strand Magazine entitled «Fifty Years Hence» 1, he described fusion power: «If the hydrogen atoms in a pound of water could be prevailed upon to combine together and form helium, they would suffice to drive a thousand - horsepower engine for a whole year.&raquin a pound of water could be prevailed upon to combine together and form helium, they would suffice to drive a thousand - horsepower engine for a whole year.»

A 10-fold increase in temperature would bring them into the realm of sparking reactions in conventional fusion fuel, a mixture of the hydrogen isotopes deuterium and tritium, known as D - T.

Experiments with actual fusion fuel — a mix of the hydrogen isotopes deuterium and tritium — began in the early 1990s in the Tokamak Fusion Test Reactor (TFTR) in Princeton, US, and the Joint European Torus (JET) in Culham, UK.

Inertial confinement is an alternative method in which small capsules of hydrogen - isotope fuel are crushed to produce the intense temperature and pressure needed for fusion to occur.

It could weaken, particularly as its plutonium core bombards it with radiation over time, subsequently failing to contain the primary fission explosion long enough to generate the high temperatures needed for fusion to take place in creating the secondary hydrogen detonation.

NIF uses the world's highest energy laser to crush peppercorn - sized targets filled with fusion fuel (a combination of hydrogen isotopes) to a temperature and pressure greater than in the core of the sun.

With masses a hundred times or more that of our sun, they burned hot and fast, forging hydrogen into heavier elements in their fusion furnaces then spewing them out into space when they exploded at the end of their lives.

The breakthrough is in magnetic confinement fusion, in which hydrogen is heated until it is a plasma 10 times hotter than the centre of the sun, and held in place by strong magnetic fields until fusion reactions occur.

According to standard models of stellar evolution, around that time the sun will largely deplete the hydrogen reserves in its core and begin to balloon as its fusion reactions migrate outward.

In some fusion experiments, a fuel of two different forms of hydrogen is surrounded by a plastic layer that reaches conditions similar to the interior of planets during a short - lived compression stage.

And in the past several years, disks seemed equally likely around brown dwarfs: gaseous balls less than 75 times the mass of Jupiter, unable to ignite sustained hydrogen fusion.

600 Million Amount of hydrogen fuel, in tons, that the sun converts to helium and energy through nuclear fusion every second.

They believe that the experiments, in which laser beams power a fusion reaction, could reveal secrets of the hydrogen bomb.

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