These are organized by a classification scheme developed exclusively for Cosma. More…
electromagnetism : a fundamental physical force that is responsible for interactions between charged particles which occur because of their charge and for the emission and absorption of photons, that is about a hundredth the strength of the strong force, and that extends over infinite distances but is dominant over atomic and molecular distances — called also electromagnetic force. — Webster
Electromagnetism is a branch of physics involving the study of the electromagnetic force, a type of physical interaction that occurs between electrically charged particles. The electromagnetic force usually exhibits electromagnetic fields such as electric fields, magnetic fields and light, and is one of the four fundamental interactions (commonly called forces) in nature. The other three fundamental interactions are the strong interaction, the weak interaction and gravitation. Electromagnetic phenomena are defined in terms of the electromagnetic force, sometimes called the Lorentz force, which includes both electricity and magnetism as different manifestations of the same phenomenon.
The electromagnetic force plays a major role in determining the internal properties of most objects encountered in daily life. Ordinary matter takes its form as a result of intermolecular forces between individual atoms and molecules in matter, and is a manifestation of the electromagnetic force. Electrons are bound by the electromagnetic force to atomic nuclei, and their orbital shapes and their influence on nearby atoms with their electrons is described by quantum mechanics. The electromagnetic force governs all chemical processes, which arise from interactions between the electrons of neighboring atoms. — Wikipedia
How Electricity Works (HowStuffWorks)
Electric Power Science Tracer Bullet (Library of Congress)
Electrical Engineering Subject Guide (University of Virginia Libraries)
Electrical Engineering (Wolfram Alpha)
Phys.org - latest science and technology news stories Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.
First major superconducting component for new...
on August 20, 2019 at 1:45 pm
It was a three-hour nighttime road trip that capped off a journey begun seven years ago.
Measuring temperatures similar to those occurring...
on August 20, 2019 at 1:40 pm
Collisions between neutron stars are fascinating cosmic events that lead to the formation of numerous chemical elements. Temperatures during these collisions are exponentially high, typically reaching up to hundreds of billions of degrees Celsius.
Toward an 'orrery' for quantum gauge theory
on August 20, 2019 at 11:00 am
Physicists at ETH Zurich have developed a new approach to couple quantized gauge fields to ultracold matter. The method might be the basis for a versatile platform to tackle problems ranging from condensed-matter to high-energy physics.
Researchers document a quantum spin wave for light
on August 19, 2019 at 1:48 pm
Researchers at Purdue University have created a quantum spin wave for light. This can be a carrier of information for future nanotechnologies but with a unique twist: they only flow in one direction.
Lab-based dark energy experiment narrows search...
on August 19, 2019 at 12:38 pm
An experiment to test a popular theory of dark energy has found no evidence of new forces, placing strong constraints on related theories.