Energy (17813 bytes)
1: ...gory Energy development]], ''please see also ''[[#Energy use by humans|other articles]] '' below.
2: ...'' '''human emotional energy''', ''please see ''[[Energy (motivational)]].
4: ...s a definition that makes it possible to consider energy as a description of the whole state and the diffe...
6: ...ange", however, misses many important examples of energy as it exists in the physical world.
8: ...al heater converts electrical energy into thermal energy.

Energy balance (1713 bytes)
1: '''Energy balance''' has meanings in several fields:
3: ...only modified in form. Energy sources or sinks of energy are therefore inputs and outputs of the system un...
5: ...intake = internal heat produced + external work + energy storage''
7: ...d agency of [[OECD]] is regularly preparing world energy balances.
9: ...biodiesel]], [[petroleum]], [[uranium]] ) and the energy necessary to produce it ( extraction (e.g. drilli...

Distributed energy (994 bytes)
3: Distributed Energy, or Distributed [[Generation]], is the concept by...
7: ...ing steam, which powers another set of turbines. Energy efficiency for this type of combined cycle system...

Internal energy (2307 bytes)
1: ...[[SI]] unit of internal energy is the same as for energy, and is the [[joule]].
3: ...energy consists only of the translational kinetic energy of the individual atoms. Monatomic particles, of...
5: ...h molecular [[energy state]] has its own internal energy.
8: ...ΔU'''). The equation for change in internal energy is
18: When heat or work transfers energy from the system to the surroundings, '''Q''' is n...

Reliant Energy (1631 bytes)
1: [[Image:reliant_energy_logo.gif|right|]]
3: '''Reliant Energy''', Inc. {{NYSE|RRI}} is an energy company providing [[electricity]] and [[natural g...
7: ... 2003, it reached a settlement with the [[Federal Energy Regulatory Commission]] in which Reliant paid bac...
9: ...pril 8, 2004. [http://www.cnn.com/2004/LAW/04/08/energy.indictments/index.html]
12: *[http://www.reliant.com Reliant Energy website]

Mechanical energy (594 bytes)
1: ... is a principle which states the total mechanical energy of a system is constant.
3: [[Category:Energy]]

Energy Plaza (514 bytes)
1: [[Image:EnergyPlaza.jpg|thumbnail|Energy Plaza]]
3: ...ilding in Dallas. [[TXU]] Corporation, a regional energy company, is the primary tenant. The building open...
6: .../www.dallassky.com/bldg09.htm Dallas Skyscrapers: Energy Plaza]

Energy flow (246 bytes)
1: In following '''energy''' or '''calorific flow''' in an [[ecosystem]], [...

Wind energy (3569 bytes)
2: ... of wind, but the main interest is in the kinetic energy from the wind's motion.
4: ...ps, used often in simple agriculture. The kinetic energy of the wind is harnessed, initially by conversion...
6: ...s been used for thousands of years as a source of energy. Sailors capture it in the sails of their ships, ...
8: ...s's Screw]] can be turned by mule, human, or wind energy.
12: The use of wind energy is the most economic method of electrical power p...

Vacuum energy (3563 bytes)
1: '''Vacuum energy''' is the [[energy]] that exists in an "empty" piece of [[space]].
5: ...two metal plates can cause a change in the vacuum energy [[density]] between them which generates a measur...
7: ...ponential expansion]] driven by a negative vacuum energy density (positive vacuum pressure).
11: ... this, then the other particle becomes "real" and energy/mass is essentially radiated into space from the ...
13: ...ions of [[perpetual motion]], the topic of vacuum energy usually encourages serious inquiries.

Progress Energy (477 bytes)
1: .../lcddata.html?ticker=PGN PGN]''') sells power and energy-related products to [[electric power|electric]] a...
4: *[http://www.progress-energy.com Progress Energy Inc.] Official website

Energy economics (13063 bytes)
1: ...chain]]s in [[ecology]] are directly analogous to energy [[supply chain]]s in human industries.
5: ...advocate of energy economics. Modern theorists of energy economics are also often students of [[complexity...
7: ...ordingly, a prime motive of energy economics is [[energy conservation]].
9: == Energy efficiency ==
11: ...tput per personhour instead of output per unit of energy input. Using the former calculation, the American...

Atomic energy (719 bytes)
1: ...se which can mean a number of things related to [[energy]] produced by [[atom]]s:
3: ...] through the [[1950s]], it was often referred to energy released by [[nuclear reactions]] (especially [[n...
4: ...clear energy]], is almost always used to mean the energy produced by nuclear reactors.

Hartree energy (763 bytes)
1: ...onstant]] used as [[atomic units|atomic unit]] of energy, named after [[physicist]] [[Douglas Hartree]].
3: ... [[atom]] |''W''₁| or the [[ionization energy]].
13: [[Category:Units of energy]]

Fermi energy (2901 bytes)
1: ...est occupied state at zero [[temperature]]. Fermi energy is a central concept for the whole solid state ph...
5: Fermi energy was named after [[Enrico Fermi]] who, with [[Paul...
7: The Fermi energy of a three-dimensional, non-interacting, [[relati...
11: ...since it is the chemical potential, not the Fermi energy, which appears in [[Fermi-Dirac statistics]].

Binding energy (3182 bytes)
1: ...em together; it corresponds to a positive binding energy.
3: ...tational_potential_energy|gravitational potential energy]] to separate e.g. a celestial body and a satelli...
6: ...mc²) can then be used to compute the binding energy of any nucleus.
8: The energy given off during either [[nuclear fusion]] or [[n...
11: == The Binding Energy of a Deuteron ²H ==

Energy, Illinois (2570 bytes)
1: '''Energy''' is a village located in [[Williamson County, I...
4: Energy is located at 37°46'21" North, 89°1'32" W...

Harken Energy (890 bytes)
1: '''Harken Energy Corporation''' is an [[United States|American]] [...
3: ...iversity]] has also been questioned; see [[Harken Energy Scandal]].
6: * [http://www.harkenenergy.com Company website]

Food energy (537 bytes)
1: '''Food energy''' is the amount of [[energy]] in food.
3: ...fat]]s and [[sugar]]s have particularly high food energy levels.
8: * [[energy]]

Energy crisis (5951 bytes)
1: ...onomy, many [[recession]]s are precipitated by an energy crisis of some form. In particular, the productio...
5: ...ket. Some economists have argued that the [[1973 energy crisis]] was exacerbated by price controls.
18: * [[1973 energy crisis]] - Cause: an [[OPEC]] oil export embargo ...
19: * [[1979 energy crisis]] - Cause: the [[History of Iran|Iranian r...
30: ...forts to develop alternative forms of energy, and energy conservation.

<< Prev 20 Result Pages:   1  2  3  4  5  6  7  8  9  10  Next 20 >>