Why Do Things Affect Each Other in the Universe?

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SUMMARY

The discussion centers on the relationship between energy and mass, particularly through Einstein's equation E=mc². Participants emphasize that while energy is the capacity to do work, it is distinct from mass, which possesses fundamental properties such as mass, charge, and spin. The conversation highlights the misconception that energy and mass are interchangeable, clarifying that energy can influence gravitational effects but is not a physical substance. The complexities of energy's role in the universe and its interaction with matter are explored, underscoring the counterintuitive nature of these concepts in physics.

PREREQUISITES
  • Understanding of Einstein's Theory of Relativity
  • Basic knowledge of physical concepts such as mass, energy, and work
  • Familiarity with the four fundamental forces of nature
  • Awareness of chemical and nuclear reactions and their implications
NEXT STEPS
  • Study the implications of E=mc² in nuclear physics
  • Explore the concept of spacetime curvature and its relation to gravity
  • Investigate the differences between mass and energy at the subatomic level
  • Learn about the Einstein stress-energy tensor and its applications
USEFUL FOR

Students of physics, educators, and anyone interested in the fundamental principles of energy and mass in the universe.

  • #61
simpatico said:
[/B]

1) I'm pleased you agree with my post #49
but that is exactly what I said in post #47 to which you responded with your Dialogue.
I hope we all should read people's statement carefully before arguing, because otherwise the discussion gets out of hand ( though amusing) and we would chase our tails endlessly

2) the bolded passage is an example of going beyond strawmen into the dominion of
wordtwisting
I said twice a form of energ

I don't see it. I read 2 completely different things between those 2 posts. They aren't the easiest to understand clearly, so it's possible I am not understanding you.
 
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  • #62
Drakkith said:
1)as has been stated multiple times, MASS IS NOT ENERGY. IT IS MASS.
... just don't sit right with people?

2)What is the essence of x? What is it asking for? The only answer, as Dalespam said, is to give the definition of x. Not enough? Describe its properties, functions, and forms. Still not enough? Then you aren't asking What is x. You are saying "I don't believe that the definition of X is correct, and I would like something else."
hi drakkith, I 'm glad you are online. I was editing previous post, so please read it again

1) I have already answered that you are not arguing with me, but with yourself

2) the point here is that sometime scientists, tend to ignore deliberately that theirs is not the only science and
only a physicist can treat physics and
they, or justanyone can treat say, linguistics, logics ...
a) you think it's simple to give a definition because you check with a dictionary, and don't know how hard work it is.
to define a word properly, completely it's a huge work it means to enumerate ALL its qualities,properties, funcions, interactions...it means thousands, millions or more items,that should contain all the levels you imagine
b)someone perhaps thinks that in this case ,there is
a definition made by a linguist
and one (of course better) made by a physicist
that's wrong.
everyman to his last
...now,

This thread is under the domain of linguistics (semantics) so
physics must step back,
the linguist must turn to physics as his source.fullstop.
But, as I said and no one has so far contradicted me, physics has not even bothered to set a unit for it,
 
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  • #63
DaleSpam said:
1) Definition is not necessarily very complex. Write a description X of some concept, take a word Y, then say "By definition Y is X". That is all.

2) Energy is even easier to describe than mangos. So in the case of energy, the exercise of definition is not very complex at all.

3)You want him to post a link to show that Einstein did not say something? That doesn't make any sense.

1) please read point 2 in my post #62
2) I hope ,after reading #62 and re-reading #47 you realize that you agree with me
as I agreed with you entering the thread,in the first place
but, once you aknowledged that the issue at hand is definition, you must be consequent and give way to specialists.

You must only realize that when you speak of easyness
you are simplifying degrees of precision
a real definition leaves no room for improvement

3) probably this is not an instance of wordtwisting, but of hasty perusal of a text:
contrary refers to 'mass..' and not to who said it

( by the way, dalespam , you are a science advisor, what fields? I haven't gone through all posts, what is your own definition?)

4)I realized, only after writing it, that my definition was the exact translation into plain English of what Drakkith had stated in technical jargon.
I used POWER as essence (ontology), as this too is a universally known concept,
and change the world, as quality, functional definition (what is it good for?)
That 's the role of a linguist, mediate between source and general public
 
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  • #64
It is the ability to do work in simple language, to do anything it requires energy of any form, mechanical, heat or anything else.
 
  • #65
simpatico said:
a) you think it's simple to give a definition because you check with a dictionary, and don't know how hard work it is.
to define a word properly, completely it's a huge work it means to enumerate ALL its qualities,properties, funcions, interactions...it means thousands, millions or more items,that should contain all the levels you imagine
b)someone perhaps thinks that there is a definition made by a linguist
and one (of course better) made by a physicist
that's wrong. everyman to his last

I have no doubt that it is difficult to define something properly. But that IS what has happened, it has been defined. I don't need to slog through countless experiments and measurements to figure out what it is. Someone else has already done that.

This thread is under the domain of linguistics (semantics) so physics must step back, the linguist must turn to physics as his source.fullstop.
But, as I said and no one has so far contradicted me, physics has not even bothered to set a unit for it, the mostant important thing in the universe.
Don't you think it's queer?

No one has contradicted you because you don't say anything other than complicated babble about how complicated definitions are and something about mango's. Oh, by the way, Joules is the SI unit of measurement for Energy. It is also the unit of measurement for Work. Why do you think that is?
 
  • #66
Drakkith said:
No one has contradicted you because you don't say anything other than complicated babble about how complicated definitions are and something about mango's. Oh, by the way,
Joules is the SI unit of measurement for Energy.
It is also the unit of measurement for Work. Why do you think that is?

hi drakkith,
you sound irritated,if it is so: I' m sorry. I very much esteem you!
and I 'm sorry for the babble, but every field has its own jargon.
I appreciated your definition and acknowledged it.If I said jargon, it was not offensive, but I thought, it is the apprropriate word, at least in British English.
I don't mind being contradicted, but you just changed twice my word ' a form of' altering my statements.
as to Joules
1)[ it is not a basic unit,( in #47,I mentioned the 7 units: like space..)
2) it is ( now I stand corrected) a unit made up by 1.5 x 10^ 33 h
once I was corrected that :
Joule is unit of work and
h is unit of action. so I was stranded, without energy.
Isn't it so?
bye
 
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