Sentences with phrase «cooler than the hydrogen»

Though less dense and cooler than the hydrogen of a fusion reactor, the wind is a plasma — and can be probed thanks to STEREO.

Not exact matches

Disks cool down more efficiently if their gas includes some molecular hydrogen — two hydrogen atoms bonded together — rather than atomic hydrogen, which consists of only one atom.

That dwarf is also the coolest starlike body ever observed, with a temperature of just 350 degrees Fahrenheit, more suitable for baking cookies than fusing hydrogen.

First, engineers reduce the volume of the gas by cooling it to the temperature of liquid nitrogen (196 degrees C), which is easier to attain than liquid - hydrogen temperatures.

Because hydrogen fluoride molecules break down at high temperatures, the spectra of warmer stars show less of the gas than those of cooler ones do — even if the warmer stars contain just as much fluorine.

Plucked from millions of stars and galaxies analyzed over the past 7 years by the Sloan Digital Sky Survey, this bunch burns considerably cooler than normal and contains atmospheres made entirely of carbon, with no traces of hydrogen or helium.

That hydrogen buildup was the result of hot steam coming into contact with overheated nuclear fuel rods covered by a cladding of zirconium alloy, or «zircaloy» — the material used as fuel - rod cladding in all water - cooled nuclear reactors, which constitute more than 90 percent of the world's power reactors.

In addition, they found that the width of the hydrogen line, which is emitted from cooler gas (with a temperature of about 10,000 K), is broader than the helium line.

More recently, however, microbial life found around hydrothermal vent ecosystems (i.e., the «Lost City» found in the Mid-Atlantic Ridge, which is cooler than those found at «black smokers») indicate that Carbon - 13 is not selected against Carbon - 12 in hydrogen - rich environments where microbial life is starved of carbon, essentially in the form of carbon dioxide (Alexander S. Bradley, Scientific American, December 2009: pp. 62 - 67).

According to Professor Jim Kaler at the University of Illinois» Department of Astronomy, Rana started life as a main sequence F8 dwarf (somewhat hotter and brighter than Sol with slightly greater mass) around 7.5 billion years ago, but core hydrogen fusion has ceased causing the star to expand and cool as an active subgiant before becoming much brighter and larger «as a true giant star» through core helium fusion.

In fact, certain of TEPCO's actions in the aftermath of the explosions have been confused and, some might opine, lacking discipline of purpose to the extent that expedient decisions have been made without proper forethought and judiciousness to avoid knock - on consequences: for example, the injection of seawater may have resulted in salt deposits sufficient to foul cooling flows in the lower regions of the RPV [reactor pressure vessel]; the liberation of hydrogen from seawater is more rampant than from freshwater and radiolysis of oxygen from the cooling water could provide stoichiometric conditions and ignition with hydrogen in the absence of air in the containments; and the latest and most recent announcement to deploy a nitrogen purge to the Unit 1 reactor seems yet another ill - explained and unjustified desperate measure».