What Were the Historical Breakthroughs in Understanding Force and Energy?

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SUMMARY

The discussion centers on the historical breakthroughs in understanding the concept of force applied over a distance, particularly focusing on the contributions of Leibniz and Joule. Leibniz introduced the term "vis viva," defined as mv², which he claimed was conserved and linked to the concept of kinetic energy. By the time of Helmholtz, the relationship between force, distance, and energy was well established, indicating that work done is equivalent to force times distance. The conversation highlights the fragmented nature of scientific progress, with multiple contributors rather than a single defining figure.

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  • Understanding of classical mechanics concepts, particularly kinetic energy.
  • Familiarity with the historical context of physics, including key figures like Newton and Leibniz.
  • Knowledge of the principles of work and energy, specifically the equation for work done.
  • Basic grasp of thermodynamics and heat engines, particularly the work of Joule.
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  • Research the mathematical formulation of kinetic energy and its historical development.
  • Explore the contributions of Helmholtz to the understanding of energy conservation.
  • Investigate the relationship between force, distance, and work in classical mechanics.
  • Study the evolution of thermodynamic principles and their application in heat engines.
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Students of physics, historians of science, and educators seeking a deeper understanding of the foundational concepts of force and energy in classical mechanics.

pgardn
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I have been trying to figure out historically how Force applied over a distance was found to be a conceptual breakthrough. I know about Joule and some others, and their thoughts on the idea of energy. But I cannot find out who or what people actually came up with the notion that Force applied over a distance was such a useful concept. Did Newton say anything about this idea being meaningful? I am looking for the historically origins of this idea and I can't find out much as far as the math goes.
 
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Definitely by the time of Helmholtz, there was an understanding that force times distance caused a change in energy.

What actually happened (as I understand it) was that kinetic energy was the first real breakthrough. In particular, Leibiz defined "vis viva" for an object of mass m and speed v as mv^2 (without the 1/2). Leibniz said that vis viva was conserved and even postulated that friction was caused by the spreading of vis viva to random other stuff.

It was observed by those working with heat engines etc (like Joule) that an initial amount of vis viva led to differing amounts of "work done" and I guess they found that this makes since if "work done" means force times distance.

By the was this is a little speculative, so don't trust me too much.
 
Ja4Coltrane said:
Definitely by the time of Helmholtz, there was an understanding that force times distance caused a change in energy.

What actually happened (as I understand it) was that kinetic energy was the first real breakthrough. In particular, Leibiz defined "vis viva" for an object of mass m and speed v as mv^2 (without the 1/2). Leibniz said that vis viva was conserved and even postulated that friction was caused by the spreading of vis viva to random other stuff.

It was observed by those working with heat engines etc (like Joule) that an initial amount of vis viva led to differing amounts of "work done" and I guess they found that this makes since if "work done" means force times distance.

By the was this is a little speculative, so don't trust me too much.

I had read about this. And a bunch of other people but it was sort of rag-tag. I was trying to find out if anyone had actually thought about Leibniz mv^2 and put that together with what Newton had already gathered. I can't find anything clear from one person, so it might be just the usual science, a whole bunch of people contributing different parts. Not like Maxwell putting it all together or Newton in a clean mathematical way.
 

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