Forms of energy
In the context of physical sciences, several forms of energy have been identified. These include:Some entries in the above list constitute or comprise others in the list. The list is not necessarily ...
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...
Scientists Turn Nuclear Waste Into Long-Lived Diamond Batteries
The diamonds are made from radioactive graphite and can generate a small electric current for thousands of years.
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
An Hour Every Day Workout Can Power Your Home For Twenty-Four Hours
What if you could power your house for an entire day just by exercising for an hour, would that motivate you to do it? I just love this idea, it could even become something that can be done as a famil...
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...
Solar Excitement
Modeling electron excitation in organic photovoltaic material could change the future of solar energy. Organic photovoltaic material offers great promise for solar energy. The semi-conducting plastic ...
Bubble, Bubble … Boiling On The Double
The boiling of water is at the heart of many industrial processes, from the operation of electric power plants to chemical processing and desalination. But the details of what happens on a hot surface...
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 ...
First Global Antineutrino Emission Map Highlights Earth's Energy Budget
The neutrino and its antimatter cousin, the antineutrino, are the tiniest subatomic particles known to science. These particles are byproducts of nuclear reactions within stars (including our sun), su...
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...
This Car Runs For 100 Years Without Refuelling – The Thorium Car
It’s become increasingly clear that our modern day propulsion systems aren’t really needed anymore. New technologies are waiting to be unleashed, technologies that are much more efficient and harmonio...
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...
Mechanical energy
In the physical sciences, mechanical energy is the sum of potential energy and kinetic energy. It is the energy associated with the motion and position of an object. The principle of conservation of m...
Mechanical energy - Wikipedia
Work (physics)
In physics, a force is said to do work if, when acting on a body, there is a displacement of the point of application in the direction of the force. For example, when a ball is held above the ground ...
Work (physics) - Wikipedia
Potential energy
In physics, potential energy is the energy that an object has due to its position in a force field or that a system has due to the configuration of its parts. Common types include the gravitational po...
Potential energy - Wikipedia
Elastic potential energy
Elastic energy is the potential mechanical energy stored in the configuration of a material or physical system as work is performed to distort its volume or shape. Elastic energy occurs when objects a...
Kinetic energy
In physics, the kinetic energy of an object is the energy that it possesses due to its motion.It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity. Ha...
Kinetic energy - Wikipedia
Gravitational potential energy
Gravitational energy is potential energy associated with the gravitational field. This phrase is found frequently in scientific writings about quasars (quasi-stellar objects) and other active galaxie...
Gravitational potential energy - Wikipedia
Thermal energy
In thermodynamics, thermal energy refers to the internal energy present in a system by virtue of its temperature. The average translational kinetic energy possessed by free particles in a system of ...
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
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
Electric energy
Electrical energy is energy newly derived from electrical potential energy. When loosely used to describe energy absorbed or delivered by an electrical circuit (for example, one provided by an electr...
Magnetic energy
Magnetic energy and electric energy are related by Maxwell's equations. The potential energy of a magnet of magnetic moment m in a magnetic field B is defined as the work of magnetic force (actually ...
Chemical thermodynamics
Chemical thermodynamics is the study of the interrelation of heat and work with chemical reactions or with physical changes of state within the confines of the laws of thermodynamics. Chemical thermod...
Chemical thermodynamics - Wikipedia
Nuclear binding energy
Nuclear binding energy is the energy required to split the nucleus of an atom into its component parts. The component parts are neutrons and protons, which are collectively called nucleons. The bind...
Heat transfer
Heat transfer describes the exchange of thermal energy, between physical systems depending on the temperature and pressure, by dissipating heat. The fundamental modes of heat transfer are conduction o...
Heat transfer - Wikipedia