Recent content by spacecadet2563
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Undergrad The paradox of symmetrical time dilation
How? Why? He sees the Earth's clock moving slowly relative to his. The reverse would be true. Unless something happens when he turns around.- spacecadet2563
- Post #5
- Forum: Special and General Relativity
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Undergrad The paradox of symmetrical time dilation
B is the traveler. He is supposed to be traveling into the Earth's future. From the Earth perspective. Apparently not from his. Which is it?- spacecadet2563
- Post #3
- Forum: Special and General Relativity
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Undergrad The paradox of symmetrical time dilation
If someone stationary on Earth watches a vehicle leaving Earth very fast he sees that time is dilating for that vehicle. Any clocks he sees slow down. But since motion is relative the traveler sees the Earth race away from him at a high speed and the same thing happens. He sees the Earth clock...- spacecadet2563
- Thread
- Replies: 15
- Forum: Special and General Relativity
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High School Light & Time
Its all really one event not two would be a safe assumption.- spacecadet2563
- Post #10
- Forum: Special and General Relativity
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High School Light & Time
Never declaring anything wrong.- spacecadet2563
- Post #6
- Forum: Special and General Relativity
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High School Time travel without paradox
There are many events that take place that are no where near that fast. Also, to make you perfectly immune to any changes or effects if you were traveling faster than light than obviously not an issue. Quick answer.- spacecadet2563
- Post #7
- Forum: Special and General Relativity
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High School Time travel without paradox
I am just trying to say things are possible. If you go back in time and make changes that do not affect you than you are safe. If you did your parents in there is the idea of suicide. Physics would allow this. Just an example: if I drop a ball it takes time to hit the ground. Cause &effect. If...- spacecadet2563
- Post #5
- Forum: Special and General Relativity
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High School Time travel without paradox
No. There is no meeting a copy of you that would be your younger self. The traveler is moving back & forth along the timeline.- spacecadet2563
- Post #4
- Forum: Special and General Relativity
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High School Time travel without paradox
Time travel is logically possible. IF you moved faster than light or even a little less with time-dilation taking effect you live on another timeline. It is not synchronized with those on Earth.Therefore events that happen on Earth like killing your parents before birth cannot reach you. True?🤔- spacecadet2563
- Thread
- Replies: 7
- Forum: Special and General Relativity
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High School Light & Time
Not a great question but I heard someone say that time does not move for a photon. T=0. So therefore both its Emission &Absorption are simultaneous events. I say no. If both of these events are supposed to be considered different events than there would need to be a time interval between them...- spacecadet2563
- Thread
- Replies: 10
- Forum: Special and General Relativity
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Undergrad Photons & Time: t=0 What?
I can measure what is going on from Earth...- spacecadet2563
- Post #18
- Forum: Special and General Relativity
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Undergrad Photons & Time: t=0 What?
My point is not about clocks but time itself.🫡- spacecadet2563
- Post #15
- Forum: Special and General Relativity
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Undergrad Einstein's time formula
In his formula if V were 2C than that fraction reduces to 2 and the result is a √-1 in the denominator. How is that to be interpreted in a time formula?🤔- spacecadet2563
- Thread
- Replies: 3
- Forum: Special and General Relativity
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Undergrad Photons & Time: t=0 What?
Thanks for all responses...- spacecadet2563
- Post #11
- Forum: Special and General Relativity
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Undergrad Photons & Time: t=0 What?
But for light it goes or is at zero? Does the math say this? Why would clocks magically stop? If that ship was 99.99999999 % light speed time would still be normal. But that last decimal point bang...the clocks stop.- spacecadet2563
- Post #4
- Forum: Special and General Relativity