I have omitted all reference to the numerous minor papers with which Mr. joule has enriched scientific literature.
We know this from Playfair, who mentioned it at joule's death.
It is generally held that the first choice lies between joule and Mayer.
joule of Manchester was the first to verify Mayer's law quantitatively.
This is known as the mechanical equivalent of heat, or joule's equivalent.
Mr. joule's first investigations were in the field of magnetism.
M is here so chosen that Mdv is the heat expressed in units of work, so that μ does not involve joule's equivalent of heat.
This is the law known as the conservation of energy which has been built up by Helmholtz, Thomson, joule and others.
It has been demonstrated by joule and others that Gravitation can be converted into heat, light, and electricity.
One watt is equivalent to one joule per second or 60 joules per minute.
unit of electrical energy, 1882, coined in recognition of British physicist James P. Joule (1818-1889).
joule (jōōl, joul)
The International System unit of electrical, mechanical, and thermal energy.
A unit of electrical energy equal to the work done when a current of 1 ampere is passed through a resistance of 1 ohm for 1 second.
A unit of energy equal to the work done when a force of 1 newton acts through a distance of 1 meter.
The SI derived unit used to measure energy or work. One joule is equal to the energy used to accelerate a body with a mass of one kilogram using one newton of force over a distance of one meter. One joule is also equivalent to one watt-second.
|Joule, James Prescott 1818-1889. |
British physicist who demonstrated that heat is a form of energy. His work established the law of conservation of energy, stating that energy is never destroyed but may be converted from one form into another. The joule unit of energy is named for him.