Sentences with phrase «atoms at»

Still waiting for his mechanism for He atoms at the heliopause to cause warming and cooling at the earth.

The problem with the refutation is that the wire is not isothermal for essentially the same reason as the gas is not: the atoms at the top of the wire will move slower than those at the bottom due to gravity and will therefore be at a lower temperature.

An atmosphere that is perfectly transparent to incoming and outgoing radiation can not radiate and all its heat content comes from conduction from the surface and is transported through the atmosphere solely by convection with no loss of energy to space except for the tiny fraction of atoms at the top of the atmosphere that exceed escape velocity.

In nature, the polyunsaturated fatty acids are usually found in the cis form, which means that both hydrogen atoms at the double bond are on the same side.

There are a maximum of two hydrogen atoms at each carbon atom.

Using molecular dynamics simulations, the researchers calculated 24,400 independent configurations of neutral, gas - phase gold clusters containing 5 to 14 atoms at temperatures from -173 to 541 °C (100 to 814K).

And collapse it does: The nickel and iron nuclei (yes, just nuclei; don't even think about entire atoms at these temperatures and pressures) break apart.

The team saw in exquisite detail how the atoms at the hematite surface and water molecules nearby responded to far - from - equilibrium conditions caused by electrically charging the interface.

These reactions are influenced by the arrangement of atoms at the interface — where minerals and water touch.

Synchrotron - based x-ray absorption spectroscopy for both aluminum and oxygen reveals that the aluminum coordination in the ideal material is a distorted octahedral geometry with oxygen atoms at two, discrete distances from the central aluminum atom.

To make the nickel oxide coating, the researchers used a technique which involves smashing atoms of argon into a pellet of nickel atoms at high speed.

A seminal development in the field of nanoscience occurred when Donald Eigler demonstrated a specific case where it was possible to pick up and place individual atoms at will.

Eigler demonstrated it was possible to pick up and precisely place individual atoms at will, creating a whole field of quantum engineering.

The false colors indicate the number of atoms at each velocity, with red being the fewest and white being the most.

In the past decade we have witnessed enormous progress in experiments that consist of placing magnetic atoms at predetermined positions on substrates and building magnetic nanostructures one atom at a time.

Disrupted oscillations The researchers focused on nitrogen — vacancy (NV) centers, imperfections in diamond that arise where an atom of nitrogen and an empty space replace carbon atoms at two neighboring spots in the crystal lattice.

MCMH (C8H16O) is a much bigger molecule than methanol (with eight carbon atoms at its center versus the one in CH3OH) and breaks down in different ways.

A Bose - Einstein condensate is a state of matter created by atoms at ultracold temperatures, close to absolute zero.

To determine the shape of the nuclei, the researchers produced beams of exotic — short - lived — radium and radon atoms at CERN's Isotope Separator facility ISOLDE.

According to the team's calculations, a clock with a molecule of two hydrogen atoms at its centre could combine multiple frequencies at once, providing a more accurate probe of possible changes in the electron - proton mass ratio.

The simulation selects atoms at random, one after another, and checks to see if they should remain in the same magnetic state or flip to the opposite one.

That is, 10 kilometers is how far atoms at room temperature can move against the gravitational force of our planet.

Consequently, the analysis revealed that the metal atoms at the center of the organic molecules retained electron spins, which could generate magnetism.

The search leads me to Neil Gershenfeld, head of the Center for Bits and Atoms at the Massachusetts Institute of Technology.

Using their technique, the researchers are able to directly observe individual atoms at the interface of two surfaces and manipulate their arrangement, tuning the amount of friction between the surfaces.

She went on to smash atoms at Fermilab.

Sulfur atoms at one end of the molecules naturally bind to gold surfaces, and the molecular stalks stick straight up if packed in tight.

The team created 30 atoms of element 115 by firing a beam of calcium atoms at a piece of americium foil.

The electrons fly away, loop back and reconnect with their home atoms all at the same time.

The Heidelberg researchers used a gas of approximately 500 atoms at a temperature of 0.00000001 Kelvin above absolute zero.

Each of the 4 atoms at the vertex of the tetrahedral pyramid carries an internal tiny magnet also called spin, which is usually represented by an arrow pointing towards the north.

It did not find a sudden decrease in the brightness of the light emitted by neutral hydrogen atoms at any point in that period, suggesting that re-ionisation did not occur suddenly.

Director of the School of Chemistry & Applied Biomedical Sciences Mekhman Yusubov says, «Our study dates back to 2009 when we synthesized benziodoxaborole with two reaction centers with iodine and boron atoms at a time.

Scientists at the Department of Energy's Oak Ridge National Laboratory have developed a new oxygen «sponge» that can easily absorb or shed oxygen atoms at low temperatures.

So comparing the positions of electrons in atoms at different spots on walls, windows and floors could provide a rough snapshot of where radioactive material was once stored and how strong it was, researchers report online July 3 in Health Physics.

«This method is a significant step forward because it allows us to model the absorption spectrum of molecular systems of hundreds of atoms at lower computational cost.»

He says the atoms at the edges of the grains seem to be bonded tightly to atoms at adjoining grain edges.

To test this, Laricchia's team fired positronium atoms at 1100 to 4400 kilometres per second into various gases, including hydrogen, krypton and water vapour.

That gives the back markers time to catch up, in this case producing a tight pack of photons that hit the neon atoms at roughly the same time.

I realized that if scientists could make quantum dots behave like synthetic atoms at room temperature in bulk, it would be possible to create materials whose properties could be adjusted in real time.

The catalytic action of individual Ni atoms at the edges of a growing graphene flake was directly captured by scanning tunneling microscopy imaging at the millisecond time scale, while force field molecular dynamics and density functional theory calculations rationalize the experimental observations.

Eventually scientists and engineers came to understand why: the most commonly used moly sulfide materials had an unsuitable arrangement of atoms at their surface.

In fact, there are strong reasons to think that much of the dark stuff is not made of atoms at all.

The source contained more than 1 × 106 atoms at all times, raising the possibility of realizing a continuous atom laser.

Department of Physics, Center for Ultracold Atoms at Massachusetts Institute of Technology (MIT) and Harvard University, and Research Laboratory of Electronics, MIT, Cambridge, MA 02139, USA.

We believe that it will also prompt new experiments focusing on the dynamical properties of the atoms at nanostructures, allowing us to understand the contribution of the previously little probed dynamical structure studies of atomic clusters, towards the physical properties such as catalytic relativities.»

Neil Gershenfeld, who holds a Ph.D. in applied physics from Cornell University, is the director of the Center for Bits and Atoms at MIT.

The authors are three brothers including Neil Gershenfeld, who runs the Center for Bits and Atoms at MIT.

In principle, they thought, if one could know the location and motion of each atom at a particular point in time, one could predict all subsequent events.

«What we're doing is transferring all that we can know of one atom to another atom at a different site, so that the final atom becomes indistinguishable from the first.»