Simple Answer:
There is rarely agreement over credit for the discovery of concepts that take a century to evolve, but Gottfried Leibniz can be argued to have discovered energy, the idea that evolved into the law of conservation of energy.
Explanation:
The first understanding of energy in a scientific sense occurred at the time of Newton but Newton does not formulate the idea of energy conservation in his famous work on mechanics in 1687. Instead, the beginnings of the idea reach back to his contemporary Leibniz, who also share credit for the discovery of calculus.
"Vis viva" was proposed by Gottfried Leibniz over the period 1676-1689, to be the quantity known as kinetic energy now. Oddly, Newton had described conservation of momentum and that was in his published work and he and Leibniz had a disagreement over conservation of energy versus momentum. It was later that is was realized they were both true.
Subsequently, the principle of conservation was expanded to encompass its true board meaning, including work, heat, and the many forms of potential energy.
The Law of Conservation of energy states energy is neither created nor destroyed, only changed from one state to another.
The Law of Conservation of Energy was invented by James Joule
The law of Conservation of Mass was invented by a French chemist Antoine-Laurent Lavoisier.
for more information go to http://www.lightandmatter.com/html_books/7cp/ch01/ch01.HTML
Check the Wikipedia article on the history of conservation of energy: http://en.wikipedia.org/wiki/Conservation_of_Energy#History
As you can see, it was not a law proposed by a single scientist; rather one that developed gradually over several centuries.
that is the relations between degree and radian
It was Sir Issac Newton (also invented the unit of weight 'Newtons')
No single scientist is credited with this law - it evolved over time. Nowadays it is derived from Nöther's Theorem, but the Law of Conservation of Energy was known well before Nöther.
The Law of Conservation of Energy is not the work of a single scientist. The knowledge about this law developed gradually over several centuries, as more and more types of energy were recognized to be equivalent. For example, at some moment somebody recognized that kinetic energy could be converted into potential energy and vice versa, and at another moment, somebody else recognized that mechanical energy could be converted to heat energy at a fixed ratio.
James Prescott Joule :)
Scientists call this law the law of conservation of matter
This law evolved gradually over time, as more types of energy were found to be interchangeable. No single scientist can be credited with the discovery of this law. A special mention should be made of Emily Nöther - today, the Law of Conservation of Energy is derived from Nöther's Theorem. However, the Law was well-known, as an experimental fact, before Nöther's time.
The law of Conservation of Energy. Actually, that law has been superceded now by a slightly different one. Recently (maybe 100 years ago) it was learned that energy can become mass and mass can become energy. So the law had to be modified to say that the total combination of mass and energy can't be created or destroyed.
The Law of Conservation of Energy is not the work of a single scientist. The knowledge about this law developed gradually over several centuries, as more and more types of energy were recognized to be equivalent. For example, at some moment somebody recognized that kinetic energy could be converted into potential energy and vice versa, and at another moment, somebody else recognized that mechanical energy could be converted to heat energy at a fixed ratio.
For most situations, that would be true, and this limitation is described as the law of conservation of energy. However we also know that mass and and energy can be converted into each other under certain circumstances, so the broader law is conservation of mass-energy. Nuclear power is based upon the conversion of mass to energy.
The law of conservation of mass states that in an isolated system, energy is neither created nor destroyed. It was first described by Antoine Lavoisier in 1789 and was later amended by Einstein in the Law of Conservation of Mass-Energy.
James Prescott Joule :)
The law of Conversation of Energy
Scientists call this law the law of conservation of matter
This law evolved gradually over time, as more types of energy were found to be interchangeable. No single scientist can be credited with the discovery of this law. A special mention should be made of Emily Nöther - today, the Law of Conservation of Energy is derived from Nöther's Theorem. However, the Law was well-known, as an experimental fact, before Nöther's time.
The law of Conservation of Energy. Actually, that law has been superceded now by a slightly different one. Recently (maybe 100 years ago) it was learned that energy can become mass and mass can become energy. So the law had to be modified to say that the total combination of mass and energy can't be created or destroyed.
The 1st Law of thermodynamics is a restatement of the law of conservation of energy.
Law of conservation of energy. Energy can't be created or destroyed is the basic statement of the law of conservation of energy.
That is because the law of conservation of energy states that you can not create new energy.
There are no "laws" of conservation of energy, just the law of conservation of energy. The existence of friction doesn't change anything - the law of conservation of energy still holds.