Post Whores III

MadMaxx61

Devilmaxx
Oct 13, 2008
5,458
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Thermal Energy

Thermal energy is the part of the total, internal energy of a thermodynamic system or sample of matter that results in the system's temperature. The internal energy, also often called the thermodynamic energy, includes other forms of energy in a thermodynamic system in addition to thermal energy, namely forms of potential energy, such as the chemical energy stored in its molecular structure and electronic configuration, intermolecular interactions, and the nuclear energy that binds the sub-atomic particles of matter.

Microscopically, the thermal energy is the kinetic energy of a system's constituent particles, which may be atoms, molecules, electrons, or particles in plasmas. It originates from the individually random, or disordered, motion of particles in a large ensemble. The thermal energy is equally partitioned between all available quadratic degrees of freedom of the particles. These degrees of freedom may include pure translational motion in fluids, normal modes of vibrations, such as intermolecular vibrations or crystal lattice vibrations, or rotational states. In general, the availability of any such degrees of freedom is a function of the energy in the system, and therefore depends on the temperature.

When two thermodynamic systems with different temperatures are brought into diathermic contact, they exchange energy in form of heat, which is a conversion of thermal energy from the system of higher temperature to the colder system. This heat may cause work to be performed on each system, for example, in form of volume or pressure changes. This work may be used in heat engines to convert thermal energy into mechanical energy. When two systems have reached a thermodynamic equilibrium, they have attained the same temperature and the net exchange of thermal energy seizes.

Thermal energy is distinct from heat. In the strict use in physics, heat is a characteristic only of a process, i.e. it is absorbed or produced as an energy exchange, but it is not a static property of matter. Matter does not contain heat, but thermal energy. Heat is thermal energy in the process of transfer or conversion across a boundary of one region of matter to another.
 

MadMaxx61

Devilmaxx
Oct 13, 2008
5,458
1
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39
Windsor, Ont, Canada
Heat Energy

In physics and thermodynamics, heat is energy transferred from one body or thermodynamic system to another due to thermal contact when the systems are at different temperatures. It is also often described as the process of transfer of energy between physical entities. In this description, it is an energy transfer to the body in any other way than due to work performed on the body.

In engineering, the discipline of heat transfer classifies energy transfer in or between systems resulting in the change of thermal energy of a system as either thermal conduction, first described scientifically by Joseph Fourier, by fluid convection, which is the mixing of hot and cold fluid regions due to pressure differentials, by mass transfer, and by thermal radiation, the transmission of electromagnetic radiation described by black body theory.

Thermodynamically, energy can only be transferred by heat between objects, or regions within an object, with different temperatures, a consequence of the zeroth law of thermodynamics. This transfer happens spontaneously only in the direction to the colder body, as per the second law of thermodynamics. The transfer of energy by heat from one object to another object with an equal or higher temperature can happen only with the aid of a heat pump via mechanical work or by using mirrors or lenses to focus electromagnetic radiation which thereby increase its energy flux density.

A related term is thermal energy, loosely defined as the energy of a body that increases with its temperature. Heat is also often referred to as thermal energy, although many definitions require this thermal energy to be in transfer between two systems to be called heat, otherwise, many sources prefer to continue to refer to the internal quantity as thermal energy.
 

MadMaxx61

Devilmaxx
Oct 13, 2008
5,458
1
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39
Windsor, Ont, Canada
Luminous energy (aka Light energy)

In photometry, luminous energy is the perceived energy of light. This is sometimes also called the quantity of light.

Luminous energy is not the same as the radiant energy, the corresponding objective physical quantity. This is because the human eye can only see light in the visible spectrum and has different sensitivities to light of different wavelengths within the spectrum. When adapted for bright conditions (photopic vision), the eye is most sensitive to light at a wavelength of 555 nm. Light with the same power at longer or shorter wavelengths has a lower luminous energy.
 

MadMaxx61

Devilmaxx
Oct 13, 2008
5,458
1
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39
Windsor, Ont, Canada
Chemical energy

Chemical energy is the potential of a chemical substance to undergo a transformation through a chemical reaction or to transform other chemical substances. Breaking or making of chemical bonds involves energy, which may be either absorbed or evolved from a chemical system.

Energy that can be released (or absorbed) because of a reaction between a set of chemical substances is equal to the difference between the energy content of the products and the reactants. This change in energy is called the change in internal energy of a chemical reaction. Where \Delta {U_f^\circ}_{\mathrm {reactants}} is the internal energy of formation of the reactant molecules that can be calculated from the bond energies of the various chemical bonds of the molecules under consideration and \Delta {U_f^\circ}_{\mathrm {products}} is the internal energy of formation of the product molecules. The internal energy change of a process is equal to the heat change if it is measured under conditions of constant volume, as in a closed rigid container such as a bomb calorimeter. However, under conditions of constant pressure, as in reactions in vessels open to the atmosphere, the measured heat change is not always equal to the internal energy change, because pressure-volume work also releases or absorbs energy. (The heat change at constant pressure is called the enthalpy change; in this case the enthalpy of formation).

Another useful term is the heat of combustion, which is the energy released due to a combustion reaction and often applied in the study of fuels. Food is similar to hydrocarbon fuel and carbohydrate fuels, and when it is oxidized, its caloric content is similar (though not assessed in the same way as a hydrocarbon fuel — see food energy).

In chemical thermodynamics the term used for the chemical potential energy is chemical potential, and for chemical transformation an equation most often used is the Gibbs-Duhem equation.
 

MadMaxx61

Devilmaxx
Oct 13, 2008
5,458
1
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39
Windsor, Ont, Canada
Nuclear Energy (sculpture)

Nuclear Energy is a bronze sculpture by Henry Moore that is located on the campus of the University of Chicago at the site of world's first nuclear reactor, Chicago Pile-1. It is on Ellis Avenue, between the Max Palevsky West dormitory and the Regenstein Library. This site is located in the Hyde Park community area of Chicago in Cook County, Illinois, United States. The location commemorates the exact location where the Manhattan Project team devised the first nuclear reactor to produce the first self-sustaining controlled nuclear reaction under the former stands of Stagg Field.

The sculpture was commissioned by the B. F. Ferguson monument fund.

It’s a rather strange thing really but I’d already done the idea for this sculpture before Professor McNeill and his colleagues from the University of Chicago came to see me on Sunday morning to tell me about the whole proposition. They told me (which I’d only vaguely known) that Fermi, the Italian nuclear physicist, started or really made the first successful controlled nuclear fission in a temporary building. I think it was a squash court - a wooden building - which from the outside looked entirely unlike where a thing of such an important nature might take place. But this experiment was carried on in secret and it meant that by being successful Man was able to control this huge force for peaceful purposes as well as destructive ones. They came to me to tell me that they thought were such an important event in history took place ought to be marked and they wondered whether I would do a sculpture which would stand on the spot. (Henry Moore quoted in Art Journal, New York, spring 1973, p.286)

The sculpture is described as 14.0 feet (4.3 m) in height and 8 feet (2.4 m) in diameter by the Smithsonian Institution, and it sits atop a base that is 1.5 feet (0.46 m) in height and 10 feet (3.0 m) in diameter.[1] However, the University of Chicago says it is only 12 feet (3.7 m) in height. The Henry Moore Foundation lists its height at 3.66m. The sculpture reminds some of the human skull, while it reminds others of an atomic mushroom cloud.

The sculpture was erected for and dedicated at the celebration of the 25th anniversary of the splitting of the atom on the grounds by Enrico Fermi on December 2, 1942. Thus, it was dedicated at precisely 3:36 p.m. on December 2, 1967. The site of the first nuclear reaction received designation as a National Historic Landmark on February 18, 1965 and was added to the newly created National Register of Historic Places (NRHP) on October 15, 1966 as one of the original designated historic places. Chicago Pile-1 is one of four Chicago NRHPs on the original list. The site was named a Chicago Landmark on October 27, 1971.

A working model for Nuclear Energy ("Atom Piece (Working Model for Nuclear Energy) 1964-65") is on display at the Hiroshima City Museum of Contemporary Art, Japan.
 

MadMaxx61

Devilmaxx
Oct 13, 2008
5,458
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Windsor, Ont, Canada
Nuclear binding energy

A general and simple description of nuclear binding energy is the energy required to break apart, split, or break down, the nucleus of the atom into its component parts (nucleons), i.e. neutrons and protons. If the binding energy for the products is higher when light nuclei fuse, or when heavy nuclei split, either of these processes will result in a release of the "extra" binding energy, and this energy is referred to as nuclear energy. It is also loosely called nuclear power.

The mass of the atom's nucleus is always less than the sum of the individual masses of the constituent protons and neutrons. This notable difference is a measure of the nuclear binding energy, which is a result of forces that hold the nucleus together. Because these forces result in the removal of energy when the nucleus is formed, and this energy has mass, mass is removed and is "missing" in the resulting nucleus. This missing mass is known as the mass defect and represents the evolved energy when the nucleus is bound. This energy may be removed as photons (gamma rays) or as the mass or kinetic energy of a number of different ejected particles. Total mass is conserved throughout the process, but the "mass defect" mass has merely moved off to a different place.

The nuclear binding energies and forces are on the order of a million times greater than the electron binding energies of light atoms like hydrogen.

Determining the relevant nuclear binding energy encompasses three steps of calculation, which involves the creation of mass defect by removing the mass as released energy. The mass defect of a nucleus represents the mass of the energy of binding of the nucleus, and is the difference between the mass of a nucleus and the sum of the masses of the nucleons of which it is composed.
 

MadMaxx61

Devilmaxx
Oct 13, 2008
5,458
1
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39
Windsor, Ont, Canada
Electric potential energy

Electric potential energy, or electrostatic potential energy, is a potential energy associated with the conservative Coulomb forces within a defined system of point charges. The term "electrostatic potential energy" is preferred here because it seems less likely to be misunderstood. The reference zero is usually taken to be a state in which the individual point charges are very well separated ("are at infinite separation") and are at rest.[1]:§25-1 The electrostatic potential energy of the system (UE), relative to this zero, is equal to the total work W that must be done by a hypothetical external agent in order to bring the charges slowly, one by one, from infinite separation to the desired system configuration:

U_{\mathrm{E}} = \; W \;.

In this process the external agent is deemed to provide or absorb any relevant work, and the point charge being slowly moved gains no kinetic energy.

Sometimes reference is made to the potential energy of a charge in an electrostatic field. This actually refers to the potential energy of the system containing the charge and the other charges that created the electrostatic field.:§25-1

To calculate the work required to bring a point charge into the vicinity of other (stationary) point charges, it is sufficient to know only (a) the total field generated by the other charges and (b) the charge of the point charge being moved. The field due to the charge being moved and the values of the other charges are not required. Nonetheless, in many circumstances it is mathematically easier to add up all the pairwise potential energies (as below).

It is important to understand that electrostatics is a 18th-19th-century theory of hypothetical entities called "point charges". Electrostatics is categorically not a complete theory of the charged physical particles that make up the physical world, and which are subject to the Heisenberg uncertainty principle and other laws of quantum mechanics.
 

MadMaxx61

Devilmaxx
Oct 13, 2008
5,458
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Windsor, Ont, Canada
Energy

In physics, energy (from Greek ἐνέργεια - energeia, "activity, operation", from ἐνεργός - energos, "active, working") is a quantity that is often understood as the ability a physical system has to produce changes on another physical system.

The changes are produced when the energy is transferred from a system to another. A system can transfer energy by means of three ways, namely: physical or thermodynamical work, heat transfer, or mass transfer.

This quantity can be assigned to any physical system. The assigned energy, according to Classical Physics, depends on its physical state relative to the frame of reference used to study it.

On the other hand, in Relativistic Physics, when using an inertial reference frame, invariant mass energy is independent of such kind of reference frames. The invariant mass of a system is the same in all the inertial reference frames, it means that its energetic equivalent (invariant mass energy) would be the same in all the inertial reference frames, too.

All the forms of energy that a system has can belong to one of two great components: the internal energy and the external energy (not to be confused with the energy of the surroundings which is outside the system). All kinds of internal and external energies can, additionally, be classified as kinetic energy or potential energy. Kinetic energy considers the mass and the motion of a system. If the system is studied as a whole, it is called external kinetic energy. The thermal energy is the internal kinetic energy and it considers the motion of every constitutive particle of the system (molecules, atoms, electrons, etc.). The gravitational potential energy is an external potential energy and so is the electrostatic potential energy. The elastic energy is an internal potential energy. The forms of energy are often named after a related force, as in the previous examples.

Some forms of energy are associated to the particle-like behaviour of the system. But, there might be cases like that of sound energy in which the energy overall effect is related to the wave-like behaviour of the system. In the specific case of sound, there is a transmission of oscillations in the pressure through the system. The energy associated to the sound wave converts back and forth between the elastic potential energy of the extra compression (in case of longitudinal waves) or lateral displacement strain (in case of transverse waves) of the matter and the kinetic energy of the oscillations of the medium of which the system is made up.

German physicist Hermann von Helmholtz established that all forms of energy are equivalent — energy in one form can disappear but the same amount of energy will appear in another form. A restatement of this idea is that energy is subject to a conservation law over time.

Any form of energy can be transformed into another form. When energy is in a form other than thermal energy, it may be transformed with good or even perfect efficiency, to any other type of energy. With thermal energy, however, there are often limits to the efficiency of the conversion to other forms of energy, due to the second law of thermodynamics. As an example, when oil reacts with oxygen, potential energy is released, since new chemical bonds are formed in the products which are more stable than those in the oil and oxygen. The released energy resulting from this process may be converted directly to electricity (as in a fuel cell) with good efficiency. Alternately it may be converted into thermal energy if the oil is simply burned. In the latter case, however, some of the thermal energy can no longer be used to perform work at that temperature, and is said to be "degraded." As such, it exists in a form unavailable for further transformation. The remainder of the thermal energy may be used to produce any other type of energy, such as electricity.

In all such energy transformation processes, the total energy remains the same. Energy may not be created nor destroyed. This principle, the conservation of energy, was first postulated in the early 19th century, and applies to any isolated system. According to Noether's theorem, the conservation of energy is a consequence of the fact that the laws of physics do not change over time.

Although the total energy of a system does not change with time, its value may depend on the frame of reference. For example, a seated passenger in a moving airplane has zero kinetic energy relative to the airplane, but non-zero kinetic energy (and higher total energy) relative to the Earth.

Energy is a scalar physical quantity. In the International System of Units (SI), energy is measured in joules, but in some fields other units such as kilowatt-hours and kilocalories are also used.
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MadMaxx61

Devilmaxx
Oct 13, 2008
5,458
1
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Windsor, Ont, Canada
Canada

Canada (play /ˈkænədə/) is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west and northward into the Arctic Ocean. It is the world's second largest country by total area. Canada's common border with the United States to the south and northwest is the longest in the world.

The land that is now Canada was inhabited for millennia by various groups of Aboriginal peoples. Beginning in the late 15th century, British and French expeditions explored, and later settled, along the Atlantic coast. France ceded nearly all of its colonies in North America in 1763 after the Seven Years' War. In 1867, with the union of three British North American colonies through Confederation, Canada was formed as a federal dominion of four provinces. This began an accretion of provinces and territories and a process of increasing autonomy from the United Kingdom. This widening autonomy was highlighted by the Statute of Westminster of 1931 and culminated in the Canada Act of 1982, which severed the vestiges of legal dependence on the British parliament.

Canada is a federation that is governed as a parliamentary democracy and a constitutional monarchy with Queen Elizabeth II as its head of state. It is a bilingual nation with both English and French as official languages at the federal level. One of the world's highly developed countries, Canada has a diversified economy that is reliant upon its abundant natural resources and upon trade—particularly with the United States, with which Canada has had a long and complex relationship. It is a member of the G8, G-20, NATO, OECD, WTO, Commonwealth, Francophonie, OAS, APEC, and UN.
 

MadMaxx61

Devilmaxx
Oct 13, 2008
5,458
1
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39
Windsor, Ont, Canada
United States

The United States of America (also referred to as the United States, the U.S., the USA, or America) is a federal constitutional republic comprising fifty states and a federal district. The country is situated mostly in central North America, where its forty-eight contiguous states and Washington, D.C., the capital district, lie between the Pacific and Atlantic Oceans, bordered by Canada to the north and Mexico to the south. The state of Alaska is in the northwest of the continent, with Canada to the east and Russia to the west across the Bering Strait. The state of Hawaii is an archipelago in the mid-Pacific. The country also possesses several territories in the Caribbean and Pacific.

At 3.79 million square miles (9.83 million km2) and with over 310 million people, the United States is the third or fourth largest country by total area, and the third largest both by land area and population. It is one of the world's most ethnically diverse and multicultural nations, the product of large-scale immigration from many countries. The U.S. economy is the world's largest national economy, with an estimated 2009 GDP of $14.3 trillion (24% of nominal global GDP and 20% of global GDP at purchasing power parity).

Indigenous peoples of Asian origin have inhabited what is now the mainland United States for many thousands of years. This Native American population was greatly reduced by disease and warfare after European contact. The United States was founded by thirteen British colonies located along the Atlantic seaboard. On July 4, 1776, they issued the Declaration of Independence, which proclaimed their right to self-determination and their establishment of a cooperative union. The rebellious states defeated the British Empire in the American Revolution, the first successful colonial war of independence. The current United States Constitution was adopted on September 17, 1787; its ratification the following year made the states part of a single republic with a strong central government. The Bill of Rights, comprising ten constitutional amendments guaranteeing many fundamental civil rights and freedoms, was ratified in 1791.

In the 19th century, the United States acquired land from France, Spain, the United Kingdom, Mexico, and Russia, and annexed the Republic of Texas and the Republic of Hawaii. Disputes between the agrarian South and industrial North over states' rights and the expansion of the institution of slavery provoked the American Civil War of the 1860s. The North's victory prevented a permanent split of the country and led to the end of legal slavery in the United States. By the 1870s, the national economy was the world's largest. The Spanish–American War and World War I confirmed the country's status as a military power. It emerged from World War II as the first country with nuclear weapons and a permanent member of the United Nations Security Council. The end of the Cold War and the dissolution of the Soviet Union left the United States as the sole superpower. The country accounts for 40% of global military spending and is a leading economic, political, and cultural force in the world.
 

MadMaxx61

Devilmaxx
Oct 13, 2008
5,458
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Windsor, Ont, Canada
New Zealand

New Zealand is an island country in the south-western Pacific Ocean comprising two main landmasses (the North Island and the South Island), and numerous smaller islands, most notably Stewart Island/Rakiura and the Chatham Islands. The indigenous Māori language name for New Zealand is Aotearoa, commonly translated as land of the long white cloud. The Realm of New Zealand also includes the Cook Islands and Niue (self-governing but in free association); Tokelau; and the Ross Dependency (New Zealand's territorial claim in Antarctica).

New Zealand is notable for its geographic isolation; it is situated about 2,000 kilometres (1,200 mi) southeast of Australia across the Tasman Sea, and its closest neighbours to the north are New Caledonia, Fiji and Tonga. During its long isolation New Zealand developed a distinctive fauna dominated by birds, a number of which became extinct after the arrival of humans and the mammals they introduced.

The majority of New Zealand's population is of European descent; the indigenous Māori are the largest minority. Asians and non-Māori Polynesians are also significant minority groups, especially in urban areas. The most commonly spoken language is English.

New Zealand is a developed country that ranks highly in international comparisons on many topics, including lack of corruption, high educational attainment and economic freedom. Its cities also consistently rank among the world's most liveable.

Elizabeth II, as the Queen of New Zealand, is the country's head of state and is represented by a Governor-General, and executive political power is exercised by the Cabinet of New Zealand.
 

MadMaxx61

Devilmaxx
Oct 13, 2008
5,458
1
36
39
Windsor, Ont, Canada
Australia

Australia (play /əˈstreɪljə/), officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania and numerous smaller islands in the Indian and Pacific Oceans. Neighbouring countries include Indonesia, East Timor and Papua New Guinea to the north, the Solomon Islands, Vanuatu and New Caledonia to the northeast and New Zealand to the southeast.

For at least 40,000 years before European settlement in the late 18th century, Australia was inhabited by indigenous Australians, who belonged to one or more of roughly 250 language groups. After discovery by Dutch explorers in 1606, Australia's eastern half was claimed by Britain in 1770 and initially settled through penal transportation to the colony of New South Wales, formally founded on 7 February 1788 (although formal possession of the land had occurred on 26 January 1788). The population grew steadily in subsequent decades; the continent was explored and an additional five self-governing Crown Colonies were established.

On 1 January 1901, the six colonies became a federation and the Commonwealth of Australia was formed. Since Federation, Australia has maintained a stable liberal democratic political system and is a Commonwealth realm. The population is 22 million, with approximately 60% concentrated in and around the mainland state capitals of Sydney, Melbourne, Brisbane, Perth and Adelaide. The nation's capital city is Canberra, in the Australian Capital Territory.

A prosperous developed country, Australia is the world's thirteenth largest economy. Australia ranks highly in many international comparisons of national performance such as human development, quality of life, health care, life expectancy, public education, economic freedom and the protection of civil liberties and political rights. Australia is a member of the United Nations, G20, Commonwealth of Nations, ANZUS, OECD, APEC, Pacific Islands Forum and the World Trade Organization.
 

MadMaxx61

Devilmaxx
Oct 13, 2008
5,458
1
36
39
Windsor, Ont, Canada
2 years ago
29Jan_0001.jpg


Now I dont see more then -15 lol
 

FullSpec

Served cold.
Apr 6, 2009
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aaah yes, the good 'ol pw threads, reminds me of my days as a mod on honda-tech while wasting time in the office....:)