Electrical
Electricity is the set of physical phenomena associated with the presence and flow of electric charge. Electricity gives a wide variety of well-known effects, such as lightning, static electricity, el...
Electrical - Wikipedia
NASA Mystery: Electron 'Superhighway' Traveling at Speed of Light Discovered Just Outside Earth's Magnetic Field
"This is a puzzling case because we're seeing energetic electrons where we don't think they should be, and no model fits them," said David Sibeck, co-author and THEMIS project scientist at NASA Goddar...
Upside-Down Lightning And Mystery Blue Glimpses Caught On Film
Fantastical light shows go on above thunderclouds, full of little-studied phenomena like upside-down lightning. Now they've been snapped from Earth and the ISS
Understanding The Magnetic Sun
Grasping what drives that magnetic system is crucial for understanding the nature of space throughout the solar system: The sun's invisible magnetic field is responsible for everything from the solar ...
X-ray Microscope Reveals 'Solitons,' A Special Type Of Magnetic Wave
Researchers used a powerful, custom-built X-ray microscope at the Department of Energy's SLAC National Accelerator Laboratory to directly observe the magnetic version of a soliton, a type of wave that...
Unexpected Role Of Electrons In Creating Pulsating Auroras
Researchers have uncovered evidence for an unexpected role that electrons have in creating the dancing auroras. Thanks to a lucky conjunction of two satellites, a ground-based array of all-sky cameras...
UNL's Fuchs Leads Team That Observes X-ray Phenomenon For First Time
Using an enormous X-ray laser -- one of only two such machines on Earth -- University of Nebraska-Lincoln physicist Matthias Fuchs and scientists from around the world beat formidable odds to observe ...
Earth Magnetic Field Is Older Than Previously Thought
The Earth's magnetic field, which shields the atmosphere from harmful radiation, is at least four billion years old, according to scientists. This is 550 million years older than it was previously bel...
Scientists Discover Fundamental Property Of Light – 150 Years After Maxwell
Photons have neither mass nor charge, and so behave very differently from their massive counterparts, but they do share a property, called spin, which results in remarkable geometric and topological p...
The New Shape Of Fusion-Tokamaks
ITER, the international fusion reactor being built in France, will stand 10 stories tall, weigh three times as much as the Eiffel Tower, and cost its seven international partners $18 billion or more. ...
Ultrahigh-Energy Cosmic Rays Traced to Hotspot
A cosmic ray from space, it possessed 320 exa-electron volts (EeV) of energy, millions of times more than particles attain at the Large Hadron Collider, the most powerful accelerator ever built by hum...
Dawn Of A New Era: The Revolutionary Ion Engine That Took Spacecraft To Ceres
The NASA spacecraft Dawn has spent more than seven years travelling across the Solar System to intercept the asteroid Vesta and the dwarf planet Ceres. Now in orbit around Ceres, the probe has returne...
Photons simulate time travel in the lab
Protocol could break quantum-encryption systems
Matter will be created from light within a year, claim scientists
In a neat demonstration of E=mc2, physicists believe they can create electrons and positrons from colliding photons
Electron - Magnetic Microprocessors Could Enable the Most Efficient Computers Physically ...
By Rebecca Boyle Posted 07.07.2011 at 11:04 am 3 Comments Electron-free magnetic microprocessors would use 1 million times less energy per flop than today's computers, according to research...
Electromagnetism
Explanation of electromagnetism with 3d animations showing behavior of magnetic fields in electric wires. Part of multipart series on magnetism and nanotechn...
History of electromagnetism
The history of electromagnetic theory begins with ancient measures to deal with atmospheric electricity, in particular lightning. People then had little understanding of electricity, and were unable t...
History of electromagnetism - Wikipedia
History of electrical engineering
This article details the history of electrical engineering.
Thales of Miletus, an ancient Greek philosopher, writing at around 600 B.C.E., described a form of static electricity, noting that rubb...
History of electrical engineering - Wikipedia
Etymology of electricity
In physics the term quantity of electricity refers to the quantity of electric charge. It is designated by the letter Q and in the SI system is measured in derived units called coulombs.
The New ...
Electric charge
Electric charge is the physical property of matter that causes it to experience a force when placed in an electromagnetic field. There are two types of electric charges: positive and negative. Positiv...
Electric charge - Wikipedia
Electron
The electron is a subatomic particle, symbol e− or β−, with a negative elementary electric charge. Electrons belong to the first generation of the lepton particle family, and are gen...
Electron - Wikipedia
Proton
The proton is a subatomic particle, symbol p or p+, with a positive electric charge of +1e elementary charge and mass slightly less than that of a neutron. Protons and neutrons, each with mass approxi...
Proton - Wikipedia
Ion
An ion (/ˈaɪən, -ɒn/) is an atom or molecule in which the total number of electrons is not equal to the total number of protons, giving the atom or molecule a net positive or negative electrical charg...
Ion - Wikipedia
Electric current
An electric current is a flow of electric charge. In electric circuits this charge is often carried by moving electrons in a wire. It can also be carried by ions in an electrolyte, or by both ions an...
Electric field
The electric field is a component of the Electromagnetic field. It is a vector field, and it is generated by electric charges or time-varying magnetic fields as described by Maxwell's equations.The co...
Electrostatics
Electrostatics is a branch of physics that deals with the phenomena and properties of stationary or slow-moving electric charges with no acceleration.Since classical physics, it has been known that so...
Electrostatics - Wikipedia
Electric potential
An electric potential (also called the electric field potential or the electrostatic potential) is the amount of electric potential energy that a unitary point electric charge would have if located a...
Electric potential - Wikipedia
Voltage
Voltage or electric potential tension (denoted ∆V or ∆U and measured in units of electric potential: volts, or joules per coulomb) is the electric energy charge difference of electric potential energy...
Voltage - Wikipedia
Electromagnetism
Electromagnetism is the study of the electromagnetic force which is a type of physical interaction that occurs between electrically charged particles. The electromagnetic force usually manifests as el...
Electromagnetism - Wikipedia
Electric circuit
An electrical network is an interconnection of electrical components (e.g. batteries, resistors, inductors, capacitors, switches) or a model of such an interconnection, consisting of electrical elemen...