What is energy?

What is energy?

Postby Guest » Thu Jun 27, 2019 4:30 pm

Energy is central to existence. But what is it exactly? Energy has diverse forms and is conserved in ideal closed systems...

"It is important to realize that in physics today, we have no knowledge of what energy is. We do not have a picture that energy comes in little blobs of a definite amount. It is not that way. However, there are formulas for calculating some numerical quantity and when we add it together it gives “28″—always the same number. It is an abstract thing in that it does not tell us the mechanisms or the reasons for the various formulas." -- R. P. Feynman.

Relevant Reference Link:

https://en.wikipedia.org/wiki/Energy
Guest
 

Re: What is energy?

Postby Guest » Thu Jun 27, 2019 5:59 pm

Guest wrote:Energy is central to existence. But what is it exactly? Energy has diverse forms and is conserved in ideal closed systems...

"It is important to realize that in physics today, we have no knowledge of what energy is. We do not have a picture that energy comes in little blobs of a definite amount. It is not that way. However, there are formulas for calculating some numerical quantity and when we add it together it gives “28″—always the same number. It is an abstract thing in that it does not tell us the mechanisms or the reasons for the various formulas." -- R. P. Feynman.

Relevant Reference Link:

https://en.wikipedia.org/wiki/Energy



FYI: The Three Laws of Thermodynamics and an attached file by a physics teacher that explains energy is not the ability to do work... may help to answer your question.

Relevant Reference Link:

https://courses.lumenlearning.com/introchem/chapter/the-three-laws-of-thermodynamics/
Attachments
robert-lehrman-energy-is-not-the-abillity-to-do-work.pdf
(122.6 KiB) Downloaded 5 times
Guest
 

Re: What is energy?

Postby Guest » Thu Jun 27, 2019 11:55 pm

Energy is a manifestation of a system, opened or closed, acting on itself, globally or locally. And therefore, it or its subsystems can be modeled mathematically... David Hilbert had stated there's a need to postulate fundamental axioms about the system's existence and about the system's nature over time and over space. Please refer to the following links for some insights on how we may proceed with the modeling of any physical system.

Relevant Reference Links:

https://en.wikipedia.org/wiki/Hilbert%27s_sixth_problem

https://royalsocietypublishing.org/doi/abs/10.1098/rspa.1934.0059

Dave.
Guest
 

Re: What is energy?

Postby Guest » Fri Jun 28, 2019 12:02 pm

FYI: 'Hilbert’s sixth problem: the endless road to rigour',

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5869544/.
Guest
 

Re: What is energy?

Postby Guest » Fri Jun 28, 2019 7:27 pm

Relevant Reference Links:

'How are mass and radiant energy distributed in the universe?',

https://www.math10.com/forum/viewtopic.php?f=32&t=8331

'What is the most important equation in science?',

https://www.math10.com/forum/viewtopic.php?f=32&t=8272.
Attachments
Big Bang Expansion.jpg
Big Bang Expansion.jpg (6.93 KiB) Viewed 77 times
Guest
 

Re: What is energy?

Postby Guest » Fri Jun 28, 2019 7:54 pm

Some Food for Thought:

"Science is an adventure of the human spirit. It is essentially an artistic enterprise, stimulated largely by curiosity, served largely by disciplined imagination, and based largely on faith in the reasonableness, order, and beauty of the universe." -- Warren Weaver.
Guest
 

Re: What is energy?

Postby Guest » Fri Jun 28, 2019 8:13 pm

Some Food for Thought:

"Scientists predict the behavior of a complex system by developing a model of its inputs, throughputs (flows) of matter, energy, or information, and outputs of matter, energy, and information."
Guest
 

Re: What is energy?

Postby Guest » Sun Jun 30, 2019 12:05 am

Some Required Reading:

'Introduction to Energy Physics',

https://epdf.pub/introduction-to-energy-physics.html;

'INTRODUCTION TO MATHEMATICAL PHYSICS',

https://epdf.pub/introduction-to-mathematical-physics2267f5070df940cc17c0a9d33785caeb88706.html.
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