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Dale's latest activity
Dale
reacted to
DaveC426913's post
in the thread
A three month long summer vacation from public school seems stupid
with
Like
.
This question is not well formed enough for me to be able answer meaningfully. I will abstain until some clarity is brought to it.
Tuesday, 11:15 PM
Dale
reacted to
sevensages's post
in the thread
A three month long summer vacation from public school seems stupid
with
Sad
.
Do you agree with me?
Tuesday, 11:15 PM
Dale
replied to the thread
A three month long summer vacation from public school seems stupid
.
My apologies for using my mentor powers to post after closure, but I thought my experience might be worthwhile on this topic. First...
Tuesday, 11:10 PM
Dale
reacted to
sevensages's post
in the thread
A three month long summer vacation from public school seems stupid
with
Sad
.
There are a couple of things that we can do to incentivise people to want to be teachers: 1# Raise property taxes to increase teachers'...
Tuesday, 10:42 PM
Dale
reacted to
DaveC426913's post
in the thread
A three month long summer vacation from public school seems stupid
with
Like
.
Man, I hate the word 'stupid'. It's meaningless and unimaginative. Can we work a little on more descriptive terms? What's 'stupid'...
Tuesday, 10:40 PM
Dale
reacted to
DaveC426913's post
in the thread
A three month long summer vacation from public school seems stupid
with
Like
.
I think the assumed alternative is one or two weeks three to four times per year. Same amount of time off, just spread around.
Tuesday, 10:40 PM
Dale
replied to the thread
I
Synchronizing clocks in an inertial frame if light is anisotropic
.
It was surprising to me also. I assumed that there would be fictitious forces that would come into play when making a U turn, for example.
Oct 6, 2025
Dale
replied to the thread
I
Synchronizing clocks in an inertial frame if light is anisotropic
.
And my position is that it is wrong to call that quantity just "KE". That should be identified as "KE relative to the detector" or "KE...
Oct 6, 2025
Dale
replied to the thread
I
Synchronizing clocks in an inertial frame if light is anisotropic
.
Sorry it took me so long to respond to this. I had to dig back through my notes more carefully. What I have in my notes is indeed...
Oct 6, 2025
Dale
replied to the thread
I
Synchronizing clocks in an inertial frame if light is anisotropic
.
I still disagree with this. KE in a specified frame is measurable. Not KE.
Oct 6, 2025
Dale
replied to the thread
I
Synchronizing clocks in an inertial frame if light is anisotropic
.
I would agree with that view. There are no non-zero Christoffel symbols in an Anderson frame, hence no fictitious forces. So Newton’s...
Oct 5, 2025
Dale
replied to the thread
I
Synchronizing clocks in an inertial frame if light is anisotropic
.
That is indeed an invariant, but it is not equal to ##\frac{1}{2}mv^2## in a frame with an anisotropic speed of light.
Oct 5, 2025
Dale
replied to the thread
I
Synchronizing clocks in an inertial frame if light is anisotropic
.
No, KE is frame dependent and the measurement of a calorimeter is frame independent. That is a different quantity. It requires a...
Oct 5, 2025
Dale
replied to the thread
I
Synchronizing clocks in an inertial frame if light is anisotropic
.
A calorimeter doesn’t measure KE.
Oct 5, 2025
Dale
replied to the thread
I
I don't see how a black hole's event horizon can be crossed
.
At this point I think this thread is unlikely to provide any further educational value. Thank you for everyone who contributed.
Oct 5, 2025
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