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Dale's latest activity
Dale
reacted to
kuruman's post
in the thread
B
How does an object gain potential energy?
with
Like
.
I never said that. I said that the object by itself CANNOT have potential energy, so it cannot gain or lose potential energy. It can...
Yesterday, 9:14 PM
Dale
replied to the thread
I
Observational Studies: What to Believe
.
I must admit that I don’t know anything about specification curve analysis. There are a lot of other statistical tools for addressing...
Yesterday, 9:12 PM
Dale
reacted to
kuruman's post
in the thread
B
How does an object gain potential energy?
with
Like
.
You seem to be unclear about what your system is. It could be one of 1. Just the object 2. The object and the Earth Specifically, if...
Yesterday, 7:00 PM
Dale
reacted to
Baluncore's post
in the thread
Does energy exist?
with
Like
.
"If you cannot measure it, you cannot manage it".
Yesterday, 6:37 PM
Dale
reacted to
DaveC426913's post
in the thread
Does energy exist?
with
Like
.
I think you have plenty to chew on to decide what answer satisfies you. It's pretty much semantical anyway. The universe is happy to...
Yesterday, 3:56 PM
Dale
reacted to
Mayhem's post
in the thread
Does energy exist?
with
Like
.
Yes, but not before 8 AM and never without coffee.
Yesterday, 3:55 PM
Dale
replied to the thread
Does energy exist?
.
Those people are clearly wrong. Things that are only a mathematical tool are not measurable.
Yesterday, 3:55 PM
Dale
reacted to
ergospherical's post
in the thread
Does energy exist?
with
Like
.
@KleinMoretti: say you finally managed to decide whether it does or doesn't exist. Would that fact have any impact on your understanding...
Yesterday, 3:37 PM
Dale
replied to the thread
Does energy exist?
.
Yes. If energy being measurable is enough to dictate that it exists then there is a clear yes answer to the question. However, even if...
Yesterday, 3:37 PM
Dale
replied to the thread
Does energy exist?
.
Energy is not merely in our models and theories. It is also measurable. Does your concept of “exist” allow for things that don’t...
Yesterday, 1:07 PM
Dale
reacted to
Vanadium 50's post
in the thread
Does energy exist?
with
Like
.
People are giving you a hard time because that is such an ill-defined and non-physical question. The fact that you are repeating rather...
Yesterday, 1:02 PM
Dale
reacted to
PeterDonis's post
in the thread
I
I want a good reference to a discussion of the meaning of "the speed of light is constant"
with
Like
.
But what is invariant is the light cones, not the numerical value of ##c##. One can always find a coordinate transformation that changes...
Yesterday, 11:18 AM
Dale
replied to the thread
I
I want a good reference to a discussion of the meaning of "the speed of light is constant"
.
The important thing about ##c## isn’t that it is constant. The important thing is that it is invariant.
Yesterday, 10:11 AM
Dale
replied to the thread
Does energy exist?
.
Energy is locally conserved, frame variant, and measurable. Some people think that things which are frame variant don’t exist. Some...
Yesterday, 5:37 AM
Dale
reacted to
PeroK's post
in the thread
Does energy exist?
with
Like
.
Nothing in physics exists or everything in physics exists, depending on your definition of existence. In neither case does the theory...
Yesterday, 5:35 AM
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