Electricity
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...
Electricity - Wikipedia
Bill Gates Slams Unreliable Wind and Solar Energy
When the world’s richest entrepreneur says wind and solar will never work, it’s probably time to listen.
The Reason Renewables Can't Power Modern Civilization Is Because They Were Never Meant To
Germans believed that the billions they spent on renewables would redeem them. Many of them will insist that the renewables effort was merely “botched,” but it wasn't. The Energiewende was doomed to f...
Man Speaks Out After Close Call With Lightning Strike
Video captures the moment when Romulus McNeill stepped outside during a storm, when a flash of lighting struck so close by that he dropped his umbrella before getting out of there. “I feel like I am b...
Bladeless Wind Generator Is The Future
What an incredible design.
An experiment hints at quantum entanglement inside protons
Particles inside protons seem to be linked on a scale smaller than a trillionth of a millimeter.
The X3 Ion Thruster Is Here
These new space engines could get us to the Moon in 30 minutes. 😱 Follow Focal Point for more stories like this!
Electrical storm lights up the sky
WATCH: Electrical storm lights up the sky over Kimberley, Western Australia.
Lightning strikes the river
Lightning strikes the river. What a sight to behold.
Can We Rely on Wind and Solar Energy?
Is green energy, particularly wind and solar energy, the solution to our climate and energy problems? Or should we be relying on things like...
Night of the Northern Lights
On 25th February 2014 Sun produced X4.9 flare which on 27th February caused G2 (KP 6) geomagnetic storm on Earth. It was the brightest aurora display so far during this solar maximum which I could wit...
Night of the Northern Lights
On 25th February 2014 Sun produced X4.9 flare which on 27th February caused G2 (KP 6) geomagnetic storm on Earth. It was the brightest aurora display so far ...
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...
here is a wind turbaine for your own backyard
here is a wind turbaine for your own backyard.mp4
Amazing task: C&C trucks carrying wind turbine blades to the mountaintop
Watch video of C&C trucks transporting wind turbine blades for the windfarm project, it took place on the Baoding mountain in Yunnan province. To find more a...
Lightning Strike Kills More Than 300 Reindeer In Norway
STOCKHOLM (AP) — More than 300 wild reindeer have been killed by lightning in central Norway. The Norwegian Environment Agency has released eerie
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
Electrical phenomena
Electrical phenomena are commonplace and unusual events that can be observed and that illuminate the principles of the physics of electricity and are explained by them.Electrical phenomena are a somew...
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
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 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 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...
Hydraulic analogy
The electronic–hydraulic analogy (derisively referred to as the drain-pipe theory by Oliver Lodge) is the most widely used analogy for "electron fluid" in a metal conductor. Since electric cur...
Hydraulic analogy - 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
Electronics
Electronics is the science of how to control the electric energy, energy in which the electrons have a fundamental role. Electronics deals with electrical circuits that involve active electrical compo...
Electronics - Wikipedia