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Hace 5 días · The phenomenon was investigated in 1852 by the British physicists James Prescott Joule and William Thomson (Lord Kelvin). The cooling occurs because work must be done to overcome the long-range attraction between the gas molecules as they move farther apart.
- The Editors of Encyclopaedia Britannica
Hace 2 días · The joule is named after James Prescott Joule. As with every SI unit named for a person, its symbol starts with an upper case letter (J), but when written in full, it follows the rules for capitalisation of a common noun; i.e., joule becomes capitalised at the beginning of a sentence and in titles but is otherwise in lower case. See also
Hace 5 días · Thomson effect, the evolution or absorption of heat when electric current passes through a circuit composed of a single material that has a temperature difference along its length. This transfer of heat is superimposed on the common production of heat associated with the electrical resistance to.
- The Editors of Encyclopaedia Britannica
Hace 2 días · James Prescott Joule "For his experimental researches on the dynamical theory of heat" 1871: Julius von Mayer "For his researches on the mechanics of heat; including essays on: – 1. The force of inorganic nature. 2. Organic motion in connection with nutrition. 3. Fever. 4. Celestial dynamics. 5. The mechanical equivalent of heat" 1872 ...
Hace 2 días · To calculate the force from a given amount of energy in joules and the distance over which this energy is applied, you can use the simple formula: \ [ F = \frac {J} {d} \] where: \ (F\) is the force in newtons (N), \ (J\) is the energy in joules (J),
Hace 3 días · Energy in thermodynamics is expressed in Joules (or kilojoules). The unit is named in honour of English physicist James Prescott Joule (1818-1889), who determined using different materials that heat was a form of energy irrespective of the type of substance being heated.
Hace 3 días · Es decir, el concepto de energía se define como la capacidad de hacer funcionar las cosas. La unidad de medida que utilizamos para cuantificar la energía es el joule (J), en honor al físico inglés James Prescott Joule.
