Sentences with phrase «iron atoms in»

Another reason it takes so long is because iron atoms in the sun's interior absorb — and hold — some of the energy that passes by them.

Iron atoms in the corona are stripped of their electrons, which can only happen if the atoms are heated to millions of degrees.

That group inferred the spin speed by measuring the distortion of high - energy light emitted by iron atoms in the accretion disk.

Produced by many animals, some plants, and bacteria, ferritin can clutch up to 4500 iron atoms in its central storage cavity.

Because the iron atoms in MCG -6-30-15 are moving, astronomers don't see the line right at 6.4 kilo - electron volts.

Brilliant outbursts of radiation from near the black hole had spread outward, struck iron atoms in surrounding gas clouds, and then reflected toward Earth, becoming visible here long after the original eruption.

Not exact matches

the atoms of iron in your blood, the gold you may have in a ring, the carbon in your cells all was forged in the heart of a long dead star and ejected out into the universe.

There is nothing in there at all about galaxies, expansion of the universe, the age of the universe, the speed of light, atoms, or anything at all that an Iron Age man would not have been able to write or make up.

Clay minerals consist of crystals in which atoms of silicon, oxygen and a number of metals, such as aluminum, iron and various rarer and less frequent ones, are arranged in a three - dimensional lattice.

Atoms in the corona are so hot that they give up many of their electrons — iron atoms have been known to lose up to half of their original cAtoms in the corona are so hot that they give up many of their electrons — iron atoms have been known to lose up to half of their original catoms have been known to lose up to half of their original count.

The reverse shock wave will continue to superheat the cool iron atoms, eventually reaching the remnant's core sometime in the next few hundred years.

Astronomers had theorized but never witnessed this remnant - stoking until last November, when Hiroya Yamaguchi of the Harvard - Smithsonian Center for Astrophysics discovered a bizarre signature in the remnant's X-rays: Cool iron atoms clustered inside a ring of their fevered ferrous cousins.

In a magnetic material, such as iron, each atom acts like a tiny bar magnet with its own north and south poles.

«There's a change in the iron atom called a spin transition, where the atom shrinks and becomes denser because of the intense pressure.

And some of those iron atoms would thereupon fluoresce, emitting X-rays of their own — not over the whole band this time but at a single precise line in the energy spectrum: 6.4 kilo - electron volts, which is the energy an electron loses when it falls from one shell in an iron atom to a lower one.

For the iron atoms to get that bright so close to the black hole in MCG -6-30-15, the hole has to be rotating rapidly.

An emission line like that in the hands of an astronomer is like a radar gun in the hands of a cop: It reveals how fast the X-ray-emitting iron atoms are traveling.

In new superconductors, electrons flow through layers of iron and arsenic interspersed among layers of other atoms.

The light was simultaneously freeing sulfur atoms from the peptides and oxidizing the iron — turning it into a form, iron (III), that could readily interact with the sulfur, the team reports this week in Nature Chemistry.

I knew that heme, the oxygen - carrying molecule in hemoglobin, contained an iron atom within a porphyrin ring (for more information on porphyrin chemistry see this site at Washburn University), but Dr. Datta - Gupta and his laboratory technician attempted to chemically add different metals such as copper, magnesium, or manganese to porphyrins using column chromatography.

In a magnetic substance, such as iron, each atom acts as a small, individual magnet.

These iron atoms then migrate deep into the material, leaving a hole in the surface that can clearly be seen in the pictures taken with the scanning tunnelling microscope.

The Ising model was introduced in 1920 to simulate how small - scale changes, such as interactions between atoms, can contribute to large - scale order, such as whether a sliver of iron will be magnetic.

But in crystals of an iron - molybdenum oxide, a team led by Kei - Ichiro Kobayashi at the Joint Research Center for Atom Technology in Tsukuba, Japan, saw a 10 % drop in resistance when they placed the material in a strong magnetic field, considerably more than the one seen in comparable materials.

The international group of researchers from the Leibniz Institute Dresden (IFW), the Technische Universität Dresden, the Polish Academy of Sciences, Sungkyunkwan University and the Center for Integrated Nanostructure Physics, an Institute of Basic Science (Korea) used pores in mono - layer graphene to form free standing 2D iron (Fe) single atom thick membranes.

Indeed, this is what an international group of researchers based in Germany, Poland and South Korea have now demonstrated is possible using iron atoms.

Keeping that in mind, Holland and his team designed a new compound with two distinct properties found in nitrogenase: large shielding groups of atoms that prevented undesired reactions, and a weak iron - sulfur bond that could break easily upon the addition of electrons.

In the magnetic vortices — the skyrmions — the «atomic bar magnets» of the iron atoms spin around (orange and green arrows) and have an opposite orientation in their centres (blue arrowsIn the magnetic vortices — the skyrmions — the «atomic bar magnets» of the iron atoms spin around (orange and green arrows) and have an opposite orientation in their centres (blue arrowsin their centres (blue arrows).

By studying iron extracted from cores drilled in rocks similar to these in Karijini National Park, Western Australia, UW - Madison researchers determined that half of the iron atoms had originated in shallow oceans after being processed by microbes 2.5 billion years ago.

In the iron - poor environment of the human body, where the iron concentration is about one atom per 1.6 liters of blood, initially susceptible P. aeruginosa might find it difficult to develop resistance to pyocin and resistant P. aeruginosa might grow so slowly the immune system would be able to clear them, Inglis said.

An external electric or magnetic field can align groups of atoms in the iron over time so that they take on their own permanent magnetic field.

An «emission line» like that in the hands of an astronomer is likea radar gun in the hands of a cop: It reveals how fast theX - ray - emitting iron atoms are traveling.

And some of those ironatoms would thereupon fluoresce, emitting X rays of their own — not overthe whole band this time but at a single precise line in the energyspectrum: 6.4 kilo - electron volts, which is the energy an electronloses when it falls from one shell in an iron atom to a lower one.

A biophysicist suggested that the iron atoms trapped in the nanobacterium's cell walls could be on - off switches, encoding in chains of Boolean logic information analogous to information encoded in DNA.

The Kondo effect, first described last century by the Japanese physicist Jun Kondo, is observed when magnetic impurities, i.e., very few atoms (even only 1 in 1000) of magnetic material such as iron are added to metals like gold or copper.

Magnetic order is a common phenomenon in three - dimensional materials, such as ferromagnetic order in iron bar magnets, where the magnetic moments on all iron atoms point in the same direction.

The Cryogenic Dark Matter Search (CDMS), buried half a mile deep in an old Minnesota iron mine to shield it from cosmic rays, searches for collisions between dark - matter particles called WIMPS and ordinary atoms in 19 hockey - puck - size hunks of germanium.

Tromp's analysis fits in neatly with suggestions that the inner core is made of a high - pressure phase of iron in which the atoms are close packed in hexagons, because such a «sigma» phase is anisotropic.

Using an electron microscope, José - Yacaman found not only indigo but also particles of iron, manganese, chromium, and titanium, in grapelike bunches of about 1,000 atoms each, embedded within the clay (inset).

Once this happened, the atoms in the nickel iron layer could flip direction in response to another magnetic field that the researchers had applied from the outside.

But the interaction of the two materials at their interface creates an internal magnetic field that aligns all the atoms in the nickel iron layers.

In the catalytic process, three iron atoms are fused to afford the tri-iron cluster Fe3 (COT) 3, which is a hydrocarbon analog of Dewar's classic Fe3 (CO) 12 complex.

Fischer tackled a problem that had stumped scientists for decades: how the oxygen, nitrogen, iron, and chlorine atoms in a hemin molecule are arranged.

When the team of geologists from Stanford University re-created these conditions in a lab to try to duplicate an ultralow - velocity zone, they found that iron — one of the more abundant minerals on Earth and a likely candidate material that might explain the zones — reacted with the seawater to create a form of iron peroxide that was saturated with hydrogen atoms, according to the new research.

The finding builds on the team's 2014 discovery, also published in Science, of the Majorana fermion in a single atom - wide chain of iron atoms atop a lead substrate.

By studying iron extracted from cores drilled in rocks similar to these in Karijini National Park, Western Australia, UW — Madison researchers determined that half of the iron atoms had originated in shallow oceans after being processed by microbes 2.5 billion years ago.

Typically, scanning tunneling microscopy (STM) involves dragging a fine - tipped electrode over a structure, in this case the chain of iron atoms, and detecting its electronic properties, from which an image can be constructed.

If a white dwarf is massive enough to fuse the iron in its core, those iron atoms are incredibly hot and densely packed, squashed together like sweaty clowns stuck in a circus car.

Their subatomic particles collide, and the iron atoms» nuclei split, leaving behind helium nuclei plus a few leftover neutrons and absorbing a lot of energy in the process.

The team identified and located more than 6,500 iron and 16,600 platinum atoms and showed how the atoms are arranged in nine grains, each of which contains different ratios of iron and platinum atoms.