It's the result of a particular magnetic property of materials — the magnetic moment, a tiny magnetic field produced
by electrons orbiting the nucleus of an atom.
Not exact matches
Conceivably, the earlier phases fade before the later, in the same sense that antecedent moments in the
orbit of an
electron no longer exist
by the time the
orbit is complete.
Scientists don't fully understand what's driving Jupiter's strongest auroras, but data gathered
by the
orbiting Juno spacecraft hint that the
electrons generating Jupiter's polar glows may be accelerated
by turbulent waves in the planet's magnetic field — a process somewhat akin to surfers being driven shoreward ahead of breaking ocean waves, the researchers report today in Nature.
All light comes from the same physical process: An
electron circling the nucleus of an atom in its customary
orbit is energized — often
by heat — and moves into a higher
orbit.
An antimatter nucleus is negative instead of positive, and it is
orbited by positrons,
electrons that are positive instead of negative.
In incandescent light, the trigger to push
electrons into a higher
orbit is heat provided
by electricity passing through a carbon filament in a vacuum; in bioluminescence, the
electrons are pushed up
by two chemicals working together.
In the sea of graphene (over an iridium crystal),
electrons» spin -
orbit interaction is much lower than that created
by intercalating a Pb island.
The atom is a helium nucleus
orbited by an
electron and an antiproton rather than two
electrons.
Electrons occupy different
orbits around their atom and,
by analogy, spin like Earth.
When energy is added to the material, either
by a laser «pump» or as an electrical current, it kicks some of the
electrons orbiting the molecules into higher energy states.
The most accurate atomic clock we have now is regulated
by the
electrons of a single aluminium ion as they move between two different
orbits with sharply defined energy levels.
One of the most ubiquitous is the «octet rule,» which states that each atom in a molecule that is produced
by a chemical reaction will have eight outer
orbiting electrons.
All the elements in the periodic table consist of atoms with a nucleus of positively charged protons,
orbited by the same number of negatively charged
electrons.
Hydrogen nuclei each consist of a single proton,
orbited by an
electron.
A single
electron orbiting a proton can occupy only certain, discrete energy levels, which are described
by the laws of quantum mechanics.
They found that the limit of the variational solution approaches the model of hydrogen developed
by physicist Niels Bohr in the early 20th century, which depicts the
orbits of the
electron as perfectly circular.
X-rays are produced in X-ray tubes
by the deceleration of energetic
electrons (bremsstrahlung) as they hit a metal target or
by accelerating
electrons moving at relativistic velocities in circular
orbits (synchrotron radiation; see above Continuous spectra of electromagnetic radiation).
These are necessarily the same as the energy states of the molecules are determined
by the allowable
electron orbits.
As the
electrons of the molecules of air absorb visible light they are physically moved in their
orbit before coming back to ground state when they spit out the same energy they absorbed, the energy is conserved
by the
electrons using it in moving in their
orbit and is conserved in the loss of speed of the visible light.
In the atmosphere the absorption of visible light's energy
by the
electrons of the gas air does not create heat, the energy is used in motion through space (think petrol in the car used for motion through space), as the
electron is moved in its
orbit and when returning to ground state when it spits out the same energy as entered; the right kind of energy and an
electron can be moved out of its
orbit completely.
It is easy to observe that H only emits very specific energies of light which are «easily» predicted
by the quantum mechanics of the
orbiting electrons and the allowed transitions between energy levels of those
orbits.
The Bohr model of the hydrogen atom: a dense nucleus containing the hydrogen atom's single proton (and possibly one or more neutrons), surrounded
by an
electron that can be on one of several different
orbits.
Radiation from a molecule at -80 C therefore can not provide enough energy in the form of photons, to warm molecules (
by boosting
electrons into higher, more energetic
orbits) at -4 C or above (seawater temperatures).