helium

He sat down in his lawn chair. Attached to his lawn chair were 105 large helium balloons.

The sun is relatively young, part of a generation of stars known as Population I, which are relatively rich in elements heavier than helium.

Nearly all their mass is made up of hydrogen and helium, giving them compositions like that of the sun.

Just a little British ingenuity that saw a standard digital camera taped to a helium balloon and floated into the sky.

The star used to be like the sun, a "main sequence" star that burns hydrogen by nuclear fusion, producing helium.

I have here a ball-- you may call it a balloon, but I call it a ball because there's no helium in it.

So helium was first discovered on the sun before it was later discovered on Earth by looking at the absorption lines of the solar spectrum.

When the universe was born, there was nothing but hydrogen, helium and a little lithium.

The image was captured using four narrow-band filters that have been tuned to see hydrogen as well as ionized helium, sulfur and oxygen.

When the helium content is less than 45%, the character of tri-mixed gas has no evident difference compared with that of argon.

The force between a pair of helium atoms is so weak that helium does not solidify at all.

He also invented the Skyhook, an air rescue system that involved an airplane and a large helium balloon.

The way these pebble bed reactors work is the helium comes in up the side and down through the pebble bed. It's not a fluidised bed.

They observed the oscillations of the helium as it twisted back and forth on the end of a metal rod.

Look at it again! We gave him an argon- helium cryoablation for his lung cancer.

Astronomers ascribed them to thermonuclear fusion of hydrogen or helium or to the sudden accretion of matter onto the star.

Why is america wasting its helium? and what is the metal that you were talking about I've never heard of it.

Other probes might be sent skimming by Jupiter's atmosphere to collect helium, a valuable gas that Earth may run out of some day.

As the sun burns, the hydrogen in its core converts to helium by fusion, a process through which the nuclei of atoms meld together.

Betty's helium-filled aerostat, three metres across, is capable of carrying loads of a little over half a kilo.

The material of this nebula was more than 99% hydrogen and helium, the two simplest elements.

Helium 3 is not hazardous or even chemically reactive, and it is not the only material that can be used for neutron detection.

An increased ADC value indicates that the helium atoms were able to travel farther during the measurement time.

Another team, ASACUSA, is studying exotic helium atoms in which one electron is replaced by an antiproton.

The output of light and heat of the Sun requires that some 600 million tons of hydrogen be converted into helium in the Sun every second.

Thousands of cubic metres of helium were pumped into the towering silver canopy of His balloon.

That left the star with only its helium core, which was a third of the sun's diameter and bore a quarter of its mass.

Helium, the second most abundant element in the universe after hydrogen, is one of the main ingredients of star formation.

Robert Richardson, a Nobel Prize winner, warns helium supplies, commonly used in balloons, will run out in 25 years.

The next heaviest element in the periodic table, the inert gas helium, is used for detecting cracks in pressure vessels and the like.

A helium line unexpectedly vented, eventually leading ground support crews to a ring that had come loose from a seal.

The cooling and shrinking continued until hydrogen and helium began to fuse igniting the fusion engine that powers our sun and other stars.

After hydrogen, helium is the second most common element in the universe, with the bulk of it formed during the big bang.

Bloon will carry passengers in a pod suspended beneath a large helium balloon, or sail, as it is called.

Born roughly a billion years ago, it once generated energy as the sun does, converting hydrogen into helium at its core.

Using helium as a coolant has at least a couple of advantages.

When the Sun ignited in the solar nebula, hydrogen, helium and other volatile materials were evaporated in the area near the Sun.

Nuclear reactions in such a star's core, the source of power for nearly its entire life, deplete the available hydrogen, then the helium.

However, there is a very attractive reaction between deuterium and a light isotope of helium known as helium-3.

Which turns four hydrogen nuclei to a helium nucleus. The star will have a convective shell and a radiative core just like our own Sun See.

But -- as Lee Billings wrote earlier this week -- Helium is pretty rare on Earth, and we're running out of it.

Rosen and His DIY MRI: How it works: A patient stands in the scanner, wearing a vest connected to a computer, and inhales magnetized helium.

An outlet of the liquid helium heat sink pipeline is provided with a pipeline safety valve for bleeding air due to overhigh pressure.

When a sunlike star exhausts its hydrogen fuel and then its helium, it turns to its carbon and oxygen.

Active magnetic bearings are important parts of helium turbines in the high temperature gas-cooled reactor(HTGR) power conversion unit.

Determination of the helium diffusion coefficient in nuclear waste storage ceramics by a nuclear reaction analysis method.

The feeling is huge and helium-filled, but it could be said that she has worn out her welcome on this subject.

It will be made of ultra-light weight carbonic materials, filled with helium, powered by solar energy, and moved via remote control.

Take a few capsules each morning before you weight yourself. They're filled with helium.

Combining the helium and hyperoxia slows down the frequency of breathing while making the air easier to breathe.

i brought this anchor along because when i'm with you, my heart feels like it's full of helium.

The Daedalus spacecraft weighed around 50, 000 tonnes, almost all of which would have been a very rare Helium isotope called Helium-3.

Some of this energy congealed into particles, which assembled into light atoms like hydrogen and helium.

"In two years we will do another experiment with the same equipment, but this time with muonic helium, " he added.

"Helium is far too cheap and is not treated as a precious resource, " said Richardson.

The reactor's primary coolant would be helium gas, with pressurized water in a secondary loop.

Using nitrogen and helium as working gases, experimental investigation of pressure driven gas flows in a microchannel was conducted.

The helmet is made of a small, helium gas cylinder with special motion sensors.

These effects could be explained by the difference in the cross-section of collisional excitation between krypton, argon and helium.

The chip can be cooled with liquid nitrogen or even liquid helium, but this requirement complicates the apparatus considerably.

Helium is used for arc welding and leak detection, mostly, although NASA uses it to pressurize space shuttle fuel tanks.

Having said that, we suspect that this new planet is made mostly of hydrogen and helium gas.

Variational and Semi-classical Methods . Ground state and first excited state of helium, via the variational method.

Beyond such mundane geopolitical rivalries, the US has a more profound reason to conserve its helium: Every balloon inevitably deflates.

Liquid helium cools infrared detectors, nuclear reactors, and the superconducting magnets used in MRI machines, too.

those calculations have been corroborated by measurements of primordial hydrogen , helium and lithium in the universe.

The Sun is rich in helium, as are the solar system's gas giant planets.

MOST commercial helium is recovered from natural gas through a cryogenic separation process.

These results are very significant for the calculations of liquid helium and reduction of the cost.

Yes. The argon-helium knife of cryoablation actually is not a real knife.

Lines of ionized calcium and excited helium are a sign of the high temperatures generated when gas crashes onto the stellar surface.

The day before your partner's birthday buy some helium balloons, streamers and flowers and hide them in a closet.

Basic knowledge on electronic circuits, mass spectrometry, chemistry, and familiar with characters of nitrogen, helium, hydrogen and argon.

That means it is not necessarily better than argon-helium ablation, but is more suitable for biliary cancer in hepatic port.

Helium mass spectrometer sniffing probe method is widely used in the process of the single point leak testing on the spacecraft.

Moon dust contains hydrogen, which could be used to power rockets, as well as helium-3, a potential fuel for fusion reactors.

nuclear fusion, the transformation of hydrogen into helium, in part by a complicated process involving carbon and nitrogen.

This above image is the U. S. Bureau of Land Management's Crude Helium Enrichment Facility in Texas.

Inert helium, unlike hydrogen, is safer, but hydrogen has to be used for record launchings because of its greater lifting capacity.

It turns out that particles in crystals and bubbles in liquid helium follow the same laws as some of the fundamental particles of nature.

But there are many applications for helium -- both scientific and non-scientific -- that make it incredibly useful and practical.

Red giants are hot enough to turn the helium at their core, which was made by fusing hydrogen, into heavy elements like carbon.

The cartoon film Up features an old man flying away by hundreds of helium-filled balloons.

The finding also challenges theories of planet formation, which hold that stars need more than hydrogen and helium to produce planets.

mercury has a thin layer of atmosphere , which is mainly made up of sodium and a little helium.

Some of the gases released can smell like burning wood, charcoal or methane along with petroleum, chlorine or helium.

Canisters of the harvested helium-3 are then sent to Earth to be used to generate fusion energy.

Earth likely once had a wealth of helium too, but this was boiled off by sunlight eons ago.

Fire a high-speed proton at a Boron target and the two fuse together to form three helium nuclei and a lot of energy.

Slick Smitty entered the annual forest marathon race with helium balloons tied to his body.

The carbon is created by helium fusion near the stellar core and dredged up into the stars' outer layers.

So, it has an atmosphere of light-weight elements: hydrogen and helium.

An observer in the distant future would find the primordial helium swamped by the helium produced in later generations of stars.

After hydrogen, the atom with the simplest structure is that of helium.

Retention of implanted hydrogen and helium in martensitic stainless steels and their effects on mechanical properties.

Normally, helium is present in less than 1% by volume in natural GAS. Helium is recovered, refined, and liquefied.

The next element above hydrogen, as we go from the simplest to the most complicated element, is helium.

To begin with, the laser palette was rather limited: helium-neon and ruby lasers emitted red light, and others produced invisible infrared.

The first generation of stars was made of hydrogen and helium, with traces of lithium.

Deuterium and tritium goes together makes helium 5. Helium splits out, and a neutron comes out and lots of energy comes out.

the experimentation of TIG helium-arc small gap spot-butt welding of tantalum sheet and corresponding numerical simulation were studied.

The faint blue dots are white dwarfs--stars that have run out of helium and are now just burnt-out and have ever cooler cores.

Just like most other stars, the sun is made up mostly of hydrogen, followed by helium.

Occurrence: Helium comes from natural gas, deposits within Earth, and can be isolated from air.

The porosities are measured by water displacement, solvent displacement, helium inflow and mercury pressure.

Inside the blanket channels of lithium, a soft, highly reactive metal would capture energetic neutrons to make helium and tritium.

Jupiter is a gas giant planet, mainly composed of hydrogen and helium, the sun's average distance of 7. 7 billion kilometers.

We have three days, at best, before the helium leaks out of those balloons.

The inner envelope holds helium in the head section of the blimp and an ethane fuel gas in the three tail sections.

To be sure, the ions must still overcome gravity, and only the lightest ions such as hydrogen and helium make it.

Then we advised him to receive argon- helium freezing therapy.

The feasibility of using quadropole mass spectroscopy to differentiate helium and deuterium was discussed.

The solar wind was much weaker in the outer regions, however, resulting in gas giants made up mostly of hydrogen and helium.

Within three years, however, Ramsay (and coworker Morris Travers) had also discovered helium, neon, krypton, and xenon.

They would form helium and a subatomic particle, called a neutron.

The GCMS vaporizes the liquid and uses helium to carry the mix of gases through 15 meters of slender glass tubing coiled inside the machine.

The numerical results agreed well with experimental data for low temperature air and helium transpiration cooling.

Two types of cooling schemes, the subcooled liquid helium and the supercritical helium flow, are numerically analyzed.

The argon-helium knife is no a real knife, actually it is a kind of apparatus like trocar, isn't it?

Gaseous helium is then compressed into cylinders using oil- or water-lubricated compressors or by dry compression systems.

The first type discovered -- alpha decay -- is when a radioactive particle emits a Helium nucleus !

Helium makes up a tiny proportion of the atmosphere but as much as 7% of natural gas.

Warm gas moves faster than cool gas, and the heated helium sped free of the gravitational clutches of so-called dwarf galaxies.

By the end of this so-called Recombination Era, the universe consists of about 75% hydrogen and 25% helium.

Till the helium leaks out of those balloons.

The research, experiment method and error analysis of reference material high purity Helium are illustrated.

Dust grains are only about 1 percent of its mass, with hydrogen accounting for 80 percent and helium providing most of the rest.

The multiscale simulations of the effect of helium and dislocation on the mechanical properties of HR-2 alloy are carried out in this paper.

they applied about 26 atmospheres of pressure to liquid helium , forcing the atoms to lock in place and thereby form a fixed lattice.

The pebble has about a one millimetre microsphere diameter. The coolant is in fact helium.

Helium isotope compositions of the mantle-derived xenoliths and megacrysts from the Cenozoic basalts in Hannuoba were measured.

My experiments on liquid helium in those days earned me the title "Coldest Man in the Universe" .

The helium-filled globes will be covered with thin-film, flexible photovoltaic panels to capture sun's rays.

Helium may also prove crucial as a working fluid or even a fuel in future nuclear reactors.

Helium-3: very rare on the surface of the Earth, very common in space.

His relative suffers from cancer of biliary tract in hepatic port, can it be treated by the argon-helium ablation?

Now the glowing ball expanded quickly, rising like a helium balloon.

The experiments were made possible by a novel, one-layer ion trap cooled to minus 269 C (minus 452 F) with a liquid helium bath.

Effects of helium on radiation-induced defect microstructure in austenitic stainless steel.

Let's watch the treatment processes of argon-helium knife through a video.

Four-and-a-half billion years ago, our star was born. Hydrogen atoms fused together to form helium, and in the process, released photons.

These react to form helium, yet more neutrons and a whole lot more energy.

At present, nearly half the hydrogen at the core has been consumed, with the remainder consisting primarily of helium.

Some cables will deliver helium to the balloons, others will carry the solar energy back to earth.

You accidently stare at a helium-argon laser , lose one turn and a retina .

Liquid helium is most frequently provided to customers in a liquid container.

I quit my job at the helium gas factory . I refuse to be spoken to in that tone.

It makes for bobbing balloons and squeaky voices, but now helium is also helping people with severe respiratory problems breathe easier.

Light kite consists of hydrogen or helium balloon and the balloon is combined with kite through adhesion, netting or embedding.

The advanced vacuum technology was used. Compared with filling Helium, the cost price is sharply decreased.

Even if they are hit, though, they do not explode because the helium gas that keeps them airborne is not flammable.

The temperature change function of height above liquid helium surface was obtained.

Onle because of it do I have a theme for my life. Otherwise all my days will float up into the sky like helium balloons.

In a rocket as defined in claim 1, wherein said gas comprises a gas selected from the group consisting of nitrogen, helium and air.

a bomb releases atomic energy by union of light (hydrogen) nuclei at high temperatures to form helium.

As Dr Hazen pointed out, carbon is the fourth-most-abundant element in the universe, after hydrogen, helium and oxygen.

Despite hints in solid helium, nobody is sure whether a crystalline material can flow without resistance.

Two new methods using metastable helium atomic beam to fabricate nano structures are introduced.

This design reduces heat leak and vaporization of liquid helium during transportation.

Bosons , in contrast, prefer to collect in identical states, as demonstrated by helium 4 atoms in a superfluid.

The red-glowing looped material is plasma, a hot gas comprised of electrically charged hydrogen and helium.

When you're a little kid and you're holding a helium balloon, it has to cross your mind, ' Couch said.

The machine's electrified copper coils generate a weak magnetic field, causing the helium atoms to rotate.

Helium gas was the thermometric fluid.

So where you get slightly denser areas, gravity starts compacting clouds of hydrogen and helium atoms.

For instance, at low temperatures liquid helium's properties change dramatically, becoming a "superfluid" that can overcome friction.

To assign more than three degrees of freedom to a helium atom would lead to incorrect predictions.

The element of helium was first found in the sun.

A synthetic element produced in trace quantities by helium isotope bombardment of curium.

Microscopic damage of metals exposed to the helium discharges in TRIAM-1M Tokamak and its impact on hydrogen recycling process.

The new injector uses a concentrated, painless jut of helium to deliver the vaccine to the blood-stream.

Helium doubly excited states is the prototype systeam for the study of electron correlation.

Objective To observe the efficacy of helium neon laser in preventing chemical phlebitis.

Uranian atmosphere, by composition, is 83% hydrogen, 15% helium and 2% methane although traces of other hydrocarbons have been found.

Helium, which dissolves less easily in body tissues, is substituted for nitrogen for deep Dives.

Helium was discovered on the sun.

Finally, an appropriate throttle valve was chose to serve the superfluid helium system.

Sulphar and chlorine in industrial circulate water were determined by XRF with the spectrum pure reagent, in helium light way.

Opportunity finally knocked in 1982, when Walters and his girlfriend purchased 42 eight-foot weather balloons and several tanks of helium.

Doctor said there is no method to treat. She asked if the argon-helium knife can treat him.

Trappe took off from Challock, England, to become the first person to cross the English Channel in a chair attached to helium balloons.

Objective To discuss the application of puncture and location under the spiral CT guiding in treating tumor by Argon Helium Knife.

After about 500 million years, the ionized helium in the quasars cooled and slowed enough that dwarf galaxies could begin bulking up again.

The machine sends pulses of antiprotons about every hundred seconds into cold helium gas.

The atoms of helium and neon have filled outer electron energy levels, and both elements are inert.

Make the electric windings out of copper pipe instead of wire and pump helium through them.

Created for the 2010 Venice Biennale, a series of silver helium-filled mylar weather balloons are tethered to the ground with green straps.

In addition to being lighter than air, Helium is incredibly useful, scientifically, in its liquid form!

bag inflation is to ensure the integrity of food in the package, it is recommended to use helium.

Like its bigger neighbor Jupiter, Saturn is a gas planet made mostly of hydrogen and helium.

It stands to reason that as supplies diminish, helium will be used more efficiently and investments in recycling technologies will grow.

The ingredient is helium 3, an unusual form of the element that is formed when tritium, an ingredient of hydrogen bombs, decays.

Howard under these helium balloon's help, floated in finally 5580 meter high upper the air .

Fill the trunk of your car with helium balloons.

The SWEAP solar wind experiment will count the electrons, protons and helium ions in the solar wind and measure their properties.

Although Helium is the second most common element in the Universe (behind Hydrogen), it's incredibly rare on Earth.

When the universe emerged from the Big Bang, it consisted almost entirely of hydrogen and helium.

It is almost completely transparent, yet so dense that not even helium, the smallest gas atom, can pass through it.

Did the star ignite helium at the core, swallow a planet, or swallow companion star?

It supplies about 40% of the Helium produced in my country, and it all comes from pockets of Helium that live underground.

Without a solid surface, these planets are mainly composed of hydrogen and helium gases. They are called the gas giants.

Liquid helium is typically shipped from production sources to storage and transfill facilities.

And then we have gas cooled reactors which can use supercritical carbon dioxide or helium.

Based on relativity quantum defect theory of ions energy levels, an expression of ionization energies of helium-like ions has been given.

a pillow stuffed with feathers; balloons filled with helium.

Niu: Argon-helium knife is not suitable for gastric cancer.

A nonrigid, buoyant airship. Modern blimps use helium instead of hydrogen to maintain buoyancy.

Clearly, helium has the least polarizable electron cloud.

The planets' strong force of gravity holds huge amounts of hydrogen and helium gas.

The best results were achieved with a mix of 40 per cent oxygen and 60 per cent helium.

I'm helium raven waiting' for you, please take me up.

It will quietly and steadily burn the hydrogen to helium and become a white dwarf.

When helium is cooled to very low temperatures, it forms an astonishing liquid.

And change to pump helium. Helium is a thermogenic agent and can thaw those ice balls.

The helium gas became transparent to the UV light only when the helium became double ionized.

Another contributor to helium's rising price is a soaring global demand.

Indicates Main Propulsion OXID FUEL and HELIUM quantity.

Yes. now, hm. What happens if you use argon lasers Instead of helium-neon? It would blow up.

Helium wasn't technically "discovered" on Earth until about 1895, despite being abundant in the universe.

A pulse appears in the half cycle of current in uniform glow discharge of helium and argon.

When we look around, we don't just see hydrogen and helium. We see planets and people, and we're made out of carbon and oxygen. . .

Under Helium, tribological properties of material becomes worse and fluid lubrication can't be used.

When other modalities become inefficacious , Argon- helium knife still can get very good results .

It is the product of radioactive decay (see radioactivity) and is used in helium dating.

The remaining 114 tons of liquid helium in the collider was unaffected by the leak, said Gillies .

A nebula an interstellar cloud of dust, hydrogen gas, helium gas and plasma.

Schematic of pmtics of a complex atom (like Helium).

Unlike helium-3 we know the moon has large amounts of hydrogen, as ice, and a significant fraction of it will be deuterium.

After welding standing test and helium leak detection.

One safety catch in his design is its helium coolant.

You guessed it; the best helium-3 supply in the solar system is from the "Gas Mines" of Uranus.

It consisted of huge clouds of hydrogen and helium atoms, and they have no structure.

Your new collar is fitted with a lockpick, netting, helium-neon laser and this is yours.

Hendrix is almost right: helium is the second lightest gas known to man, behind hydrogen.

In this heat and pressure, hydrogen atoms collided and combined with each other to from helium.

Effect of High Helium Pressure upon Lipoperoxidation in Rat Cerebral Cortical Slices.

Now their profits are rising like helium-filled balloons.

One class of white dwarfs has almost pure helium atmospheres.

Helium 3 is used to detect neutrons, the subatomic particles that sustain the chain reaction in a bomb or a reactor.

If a red giant is big enough (has sufficient mass), once it runs out helium it will move on to fusing other elements.

He plans to circumnavigate the world in a helium balloon.

For tumor on body surface or superficial place, argon-helium has very good efficacy.

Helium is also lighter than air, but it costs a lot of money.

It is non-destructive and uses CO2 detection technology, eliminating the need for costly helium testing.

Stars like our sun fuse hydrogen in their cores into helium.

Carl ties 1000s of helium balloons to his house.

The antimatter equivalent of helium.

Points out the importance of application of helium leak detector.

The deuteron can fuse with another proton to make a helium 3 nucleus.

This allows a short-range phenomenon called the strong nuclear force to take over and causes the nuclei to merge and form helium.