Only show
results for:

Topics related to "Joule"

joule
joule , abbr. J, unit of work or energy in the mks system of units, which is based on the metric system ; it is the work done or energy expended by a force of 1 newton acting through a distance of 1 meter. The joule is named for James P. Joule. ... Read more
James Prescott Joule
James Prescott Joule , 1818-89, English physicist. His scientific researches began in his youth when he invented an electromagnetic engine. Joule made valuable contributions to the fields of heat, electricity, and thermodynamics. His work established the mechanical theory of heat , and he was the f... Read more
erg
erg , unit of work or energy in the cgs system of units, which is based on the metric system ; it is the work done or energy expended by a force of 1 dyne acting through a distance of 1 centimeter. In terms of the joule , the unit of work or energy in the mks system, 1 erg equals 0.0000001 j... Read more
thermoelectricity
thermoelectricity direct conversion of heat into electric energy, or vice versa. The term is generally restricted to the irreversible conversion of electricity into heat described by the English physicist James P. Joule and to three reversible effects named for Seebeck, Peltier, and Thomson, their ... Read more
power
power in physics, time rate of doing work or of producing or expending energy . The unit of power based on the English units of measurement is the horsepower , devised for describing mechanical power by James Watt, who estimated that a horse can do 550 ft-lb of work per sec; a foot-pound is the... Read more
watt
watt [for James Watt ], abbr. W, unit of power, or work done per unit time, equal to 1 joule per second. It is used as a measure of electrical and mechanical power. One watt is the amount of power that is delivered to a component of an electric circuit when a current of 1 ampere flows through the ... Read more
British thermal unit
British thermal unit abbr. Btu, unit for measuring heat quantity in the customary system of English units of measurement , equal to the amount of heat required to raise the temperature of one pound of water at its maximum density [which occurs at a temperature of 39.1 degrees Fahrenheit (°F)&t... Read more
Nicolas Léonard Sadi Carnot
Nicolas Léonard Sadi Carnot , 1796-1832, French physicist, a founder of modern thermodynamics; son of Lazare N. M. Carnot. His famous work on the motive power of heat ( Réflexions sur la puissance motrice du feu, 1824) is concerned with the relation between heat and mechanical energy.... Read more
green flash
green flash or emerald flash, a refractive phenomenon of the atmosphere where the top edge of the setting (or, less frequently, rising) sun will momentarily turn emerald green. The green color lasts from a fraction of a second to two seconds. It is usually seen over a low distant horizon, such ... Read more
heat capacity
heat capacity or thermal capacity, ratio of the change in heat energy of a unit mass of a substance to the change in temperature of the substance; like its melting point or boiling point, the heat capacity is a characteristic of a substance. The measurement of heat and heat capacity is call... Read more

Encyclopedia entries related to "Joule"

James Prescott Joule
Encyclopedia entry from: Encyclopedia of World Biography James Prescott Joule The English physicist James Prescott Joule (1818-1889) proved that mechanical and thermal energies...of conservation of energy. On Dec. 24, 1818, James Joule was born at Salford near Manchester, the second of the...
Joule, James Prescott
Book article from: World Encyclopedia Joule, James Prescott (1818–89) British physicist. Joule's law (1841) relates the current flowing through a wire to its heat loss. It laid the foundation for the law of conservation of energy. The joule is named after him.
joule
Book article from: The Columbia Encyclopedia, Sixth Edition joule , abbr. J, unit of work or energy in the mks system of units, which is based on the metric system ; it is the work done or energy expended by a force of 1 newton acting through a distance of 1 meter. The joule is named for James P. Joule.
Joule's law
Book article from: The Columbia Encyclopedia, Sixth Edition Joule's law see thermoelectricity .
Heat
Encyclopedia entry from: UXL Encyclopedia of Science ...unit of energy is the joule. A calorie is defined as 4.184 joules. Specific heat Materials...warmed. One could add a joule of heat to a gram of...Celsius and 0.45 joule to raise the temperature...Celsius. It takes 2.46 joules to raise the temperatur
Heat Capacity
Encyclopedia entry from: The Gale Encyclopedia of Science ...In the metric system, energy is measured in joules, and one calorie equals 4.184 joules. When any substance is heated, the amount...x394; T where q is the quantity of heat (in joules), m is the mass of the object (usually in...
Energy
Encyclopedia entry from: UXL Encyclopedia of Science ...foot. In the metric system, the fundamental unit of energy is the joule (abbreviation: J), named after English scientist James Prescott Joule (1818 – 1889). A joule is the amount of energy that can move a weight of one newton a distance...
Calorie
Encyclopedia entry from: Encyclopedia of Food and Culture ...calorie is officially defined as equivalent to 4.186 joule. A joule is defined, in "force × distance" units...or 1 kg m 2 /s 2 . Energy values are expressed as joules when the Syst è me International d'Unit...
thermoelectricity
Book article from: The Columbia Encyclopedia, Sixth Edition ...described by the English physicist James P. Joule and to three reversible effects named for...their respective discoverers. According to Joule's law, a conductor carrying a current...material. (This heat is not the same as Joule heat, or I 2 R heat, which is always...
SI derived units
Book article from: World Encyclopedia ...C W m −1 °C −1 Heat capacity joule per kelvin J K −1 Specific latent heat joule per kilogram J kg −1 Specific heat capacity joule per kilogram kelvin J kg −1 K −1 Velocity...

Dictionary entries related to "Joule"

Joule, James Prescott
Dictionary entry from: Complete Dictionary of Scientific Biography Joule, James Prescott ( b . Salford, near Manchester...Sale, England, 11 October 1889) physics . Joule ’ s ancestors were Derbyshire yeomen...five children of Benjamin and Alice Prescott Joule. Together with his elder brother, James...
joule
Book article from: A Dictionary of Biology joule Symbol J. The SI unit of work and energy equal to the work done...in the direction of the force, a distance of one metre. 1 joule = 10 7 ergs = 0.2388 calorie. It is named after James Prescott Joule (1818–89).
Joule
Book article from: A Dictionary of Food and Nutrition Joule The SI (Système Internationale) unit of energy ; used to express...kJ) is equivalent to 1 kilocalorie (kcal). Named after James Prescott Joule (1818–1889), British physicist, who determined the equivalence...
energy
Book article from: A Dictionary of Food and Nutrition ...energy The ability to do work. The SI unit of energy is the joule, and nutritionally relevant amounts of energy are kilojoules...approximated to 4.2). While it is usual to speak of the calorie or joule content of a food it is more correct to refer to the energy...
calorie
Book article from: A Dictionary of Biology calorie The quantity of heat required to raise the temperature of 1 gram of water by 1°C (1 K). The calorie, a c.g.s. unit, is now largely replaced by the joule , an SI unit . 1 calorie = 4.186 8 joules.
Müller, Johann Heinrich Jacob
Dictionary entry from: Complete Dictionary of Scientific Biography ...two axes. In 1849 he experimentally found, independently of Joule, the limits of intensity of the magnetism ( m ) of iron, which...xFC; ller ’ s findings were more precise than Joule ’ s results, and he calculated ρ ∞...
star
Book article from: A Dictionary of Astronomy ...is converted to energy. According to the famous equation E = mc 2 , the 7 grams provides an energy of 6.3 × 10 14 joules. Nuclear reactions not only provide the stars' heat and light, they also produce elements heavier than hydrogen and helium...
electronvolt
Book article from: A Dictionary of Astronomy ...by an electron in falling through a potential difference of one volt. One electronvolt is equal to 1.602 × 10 -19 joule. Electronvolts are used as a measure of the energy of cosmic rays and high-energy photons. X-rays and gamma rays can have...
calorific value
Book article from: A Dictionary of Plant Sciences ...expressed more significantly in terms of ash-free dry weight, i.e. in terms of organic constituents only. Contemporary studies of ecological energetics express results in terms of the SI energy unit, the joule (4.182 J = 1 calorie).
SI units
Book article from: A Dictionary of Plant Sciences ...radian rad solid angle steradian sr Derived SI units Quantity Name of unit Symbol Equivalent Reciprocal frequency hertz Hz energy joule J 0.2388 calories 1 cal = 4.1868 J force newton N 0.225 pounds force 1 lbf = 4.448...

Related newspaper, magazine, and trade journal articles from HighBeam Research

JOULE Inc. Announces Going Private Merger Agreement at $1.70 Per Share.
PR Newswire; 3/19/2004; 700+ words ; JOULE Inc. announced today that it has entered...the Board and Chief Executive Officer of JOULE, members of his immediate family and John...President and Chief Operating Officer of JOULE (collectively, the "JAC Group"). If...
Joule System. (La Cie) (modular storage unit) (Hardware Review) (Evaluation)
Magazine article from: Macworld; 2/1/1995; ; 700+ words ; ...shown. MW Rating: *** The promise of the La Cie Joule system is clear: to eliminate the clutter and...to buy extra storage or swap modules with other Joule towers. Some may like the Joule system for its modular, flexible design and all...
Kinetic Mobile Re-Brands As Joule.
PR Newswire; 1/12/2009; 700+ words ; ...announced today its worldwide rebranding as Joule. (Logo: http://www.newscom.com...coincides with the re-positioning of Joule as an independent agency within the GroupM...execution of mobile marketing campaigns. "Joule's deep mobile expertise and track record...
JAC Acquisition Company, Inc. to Commence Cash Tender Offer for All Outstanding Shares of Joule Which Are Not Already Owned by the Purchaser Group at $1.52 Per Share.
Business Wire; 11/21/2003; 700+ words ; ...BUSINESS WIRE)--Nov. 21, 2003 Joule Special Committee Recommends Transaction...all of the outstanding common stock of Joule Inc. (AMEX:JOL) not owned by a purchaser...the Board and Chief Executive Officer of Joule, members of his immediate family and John...
Joule Biotechnologies Elects Graham Allison to Board of Directors.
Business Wire; 9/21/2009; 700+ words ; CAMBRIDGE, Mass. -- Joule Biotechnologies, Inc., an innovative...renewable fuel," said Dr. Allison. "Joule's proprietary technologies, engineering...production over the next several years." "As Joule ramps up from successful laboratory scale...
JOULE Inc. Announces Fiscal 2004 First-Quarter Financial Results.
Business Wire; 2/10/2004; 700+ words ; ...Feb. 10, 2004 The management of JOULE Inc. (AMEX:JOL) today announced financial...initiatives. John G. Wellman, Jr., JOULE's President and Chief Operating Officer...by Emanuel Logothetis, the Chairman of JOULE, his family and John G. Wellman, Jr...
Joule Biotechnologies Introduces Revolutionary Process for Producing Renewable Transportation Fuels.
Business Wire; 7/27/2009; 700+ words ; ...competitive with fossil fuels CAMBRIDGE, Mass. -- Joule Biotechnologies, Inc., an innovative bioengineering...real scale," said Bill Sims, president and CEO of Joule Biotechnologies. "Joule was created for the very purpose of eliminating these...
JAC Acquisition Company, Inc. Announces Withdrawal of Tender Offer For Common Stock of Joule Inc. and Proposes 'Going Private' Merger.
PR Newswire; 1/16/2004; 700+ words ; ...all of the outstanding common stock of Joule Inc. not owned by a purchaser group consisting...the Board and Chief Executive Officer of Joule, members of his immediate family and John...President and Chief Operating Officer of Joule (collectively, the "Purchaser Group...
Joule Reports Breakthrough in Renewable Diesel Production.
Business Wire; 11/9/2009; 700+ words ; HONOLULU -- Joule Biotechnologies, Inc. today announced...engineered organisms, powered by solar energy. Joule is advancing a new, photosynthesis-driven...this latest feat of genome engineering, Joule is now capable of directly producing hydrocarbons...
Joule Biotechnologies Names Bill Sims President and CEO.
Newspaper article from: Energy Business Journal; 8/14/2009; 700+ words ; Joule Biotechnologies, Inc., an innovative bioengineering...Bill is exceptionally qualified to lead Joule through the next exciting phases of growth...said Noubar Afeyan, founder and chairman, Joule Biotechnologies. "In addition to his proven...