On 10/25/2024 1:58 AM, Alan Grayson wrote:
On Friday, October 25, 2024 at 2:44:06 AM UTC-6 Brent Meeker wrote:
On 10/25/2024 1:36 AM, Alan Grayson wrote:
On Thursday, October 24, 2024 at 11:07:18 PM UTC-6 Brent Meeker
wrote:
On 10/24/2024 5:46 PM, Alan Grayson wrote:
On Thursday, October 24, 2024 at 1:30:32 PM UTC-6 Brent
Meeker wrote:
Here's how a light-clock ticks in when in motion. A
light-clock is just two perfect mirrors a fixed distance
apart with a photon bouncing back an forth between
them. It's a hypothetical ideal clock for which the
effect of motion is easily visualized.
These are the spacetime diagrams of three identical
light-clocks moving at _+_c relative to the blue one.
*Three clocks? Black diagram? If only this was as clear as
you claim. TY, AG*
*You can't handle more than two? The left clock is black
with a red photon. Is that hard to comprehend? Didn't they
teach spacetime diagrams at your kindergarten?
Brent
*
*What makes you think you can teach? *
*That I have taught and my students came back for more.*
*Maybe you're no**w having an extended "senior moment"? AG
*
*And maybe you're too interested in snark to learn anything.*
*I can handle dozens of clocks. I know what a spacetime diagram.
It was taught in pre-school. Why did you introduce a red photon?
A joke perhaps? How can a clock move at light speed? *
*None of the clocks in the diagram are moving at light speed. *
*Then why do you write "These are the spacetime diagrams of three
identical light-clocks moving at _+_c relative to the blue one."? AG*
*Just a typo; I Ieft out the 0.5, which is clearly displayed on the diagram.
Brent
*
*The black one and the red one are moving at 0.5c as the label
says. What is it you don't understand about this diagram?
Brent
*
*It's a real muddle. I think you meant well, but you don't have
the maturity to contain your temper. Nonetheless, the photon
clock gave me a good idea, which I just wrote about. AG *
**
Because the speed of light is invariant the photon paths
are at unit slope inside all three clocks, so it is
easily seen why the relative motion makes the clock seem
slow although each clock is ticking at the same rate in
it's own reference frame. The red diagram is just the
blue diagram Lorentz transformed as it would be seen in
a frame moving the left at 0.5c, and the black diagram
as it would be seen from a frame moving to the right.
Brent
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