Sentences with phrase «of electromagnetic interactions»

The quantity in question is the fine - structure constant, a number that governs the strength of electromagnetic interactions (SN: 11/12/16, p. 24), such as those that confine electrons within atoms.

«Physicists trace origin of electromagnetic interaction to Dirac equation.»

An international group of physicists has traced the origin of an electromagnetic interaction to the Dirac equation, a fundamental equation of quantum physics.

Dirac's 1927 paper on this interaction is seen as the first step tow - ards a theory now called quantum electro - dynamics or QED, the theory of the electromagnetic interaction of charged particles.

When the electrons and the lattice experience a particular kind of electromagnetic interaction, or coupling, the energy potential for the electron is lowered, thus trapping it within the lattice.

Not exact matches

Likewise, the ratio of electrons to protons can not vary by more than 1 part in 10 to the 37th power or else electromagnetic interactions would prevent chemical reactions.

Likewise, the ratio of electrons to protons can not vary by more than 1 part in 1037 or else electromagnetic interactions would prevent chemical reactions.

Dr. Nicholas X. Fang, Professor of Mechanical Engineering at MIT and co-principal investigator of the project, said «We are very excited that this MIT - Masdar Institute collaboration has led to new insights in the emerging field of plasmonics, which quantify the interactions between the electromagnetic field and free electrons in a metal.

The interaction couples the spin of the electron to the angular momentum of the electromagnetic field and it is responsible for a variety of phenomena in a large class of technologically important materials.

The energy loss function represents the level of interaction between the material and electromagnetic waves, and is expressed in terms of the change in the amount of energy lost from electrons and the change in momentum due to corresponding scattering events occurring in the material.

The Casimir forces are due to the quantisation of electromagnetic fluctuations in vacuum, while the weak nuclear interactions are mediated by subatomic scale particles, originally called mesons by Yukawa.

«One of the great recent achievements of modern physics is a quantum field theory in which weak and electromagnetic interactions are understood to arise from a common symmetry.

This model describes three types of forces: electromagnetic interactions, which cause all phenomena associated with electric and magnetic fields and the spectrum of electromagnetic radiation; strong interactions, which bind atomic nuclei; and the weak nuclear force, which governs beta decay — a form of natural radioactivity — and hydrogen fusion, the source of the sun's energy.

Along with gravity, the electromagnetic interaction and weak nuclear force, strong - interactions are one of four fundamental forces.

Lead scientist Professor Tim Gershon, from The University of Warwick's Department of Physics, explains: «Gravity describes the universe on a large scale from galaxies to Newton's falling apple, whilst the electromagnetic interaction is responsible for binding molecules together and also for holding electrons in orbit around an atom's nucleus.

Due in part to the forces» relative simplicity, scientists have previously been able to solve the equations behind gravity and electromagnetic interactions, but the strength of the strong interaction makes it impossible to solve the equations in the same way.

The basic idea is that, in the case of large nuclei such as gold, which have a very large positive electric charge, electromagnetic interactions play a much more important role in particle production than they do in the case when two small, equally charged protons collide.

Spectroscopy: The study of the interaction between electromagnetic radiation and matter, with absorption or emission of radiant energy.

A soundscape of the interactions of electromagnetic particles from the solar wind, ionosphere, and various planets» magnetospheres permeates through the gallery.

Including, in particular, their interactions with certain of the Traveling Electromagnetic Waves.

Electromagnetic interactions are certainly a candidate and the contribution of resonances is almost always «underinvestigated»

Radiation exposure is the interaction of charged particles and electromagnetic radiation with a spacecraft's surfaces, instruments, and electronic components.

Radiation and matter: Interactions of electromagnetic radiation with molecules.

The inner planets and the outer planets have their own separate periods of harmonic oscillation as a result of billions of years of gravitational, tidal and electromagnetic interactions that are in a resonate pattern, the inner planets have a beat frequency of about 6558 day period with the outer planets settled into a period of somewhere between 172 and 179 years.

Encyclopedia of planetary sciences says «Absorption is the conversion of electromagnetic energy to another form of energy through interaction with matter.