Can the Speed of Light Be Changed and What Does It Mean for Space Exploration?

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Discussion Overview

The discussion revolves around the possibility of altering the speed of light and the implications such changes might have for space exploration. Participants explore theoretical scenarios, implications for physics, and the nature of light in different media.

Discussion Character

  • Exploratory
  • Debate/contested
  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • Some participants suggest that the speed of light can be modified in different media, such as air and water, where light refracts and travels at different speeds.
  • Others argue that while light speed can change in media, the fundamental speed of light in a vacuum, denoted as 'c', cannot be increased.
  • A participant proposes a hypothetical device that could speed up light around a spaceship, questioning the implications of such a device on space travel.
  • There is a discussion about whether the speed of light being the maximum speed allowed in the universe is coincidental or if it could change with undiscovered phenomena.
  • One participant speculates on how changing constants like \(\mu_0\) or \(\epsilon_0\) could alter the speed of light and the potential consequences for physics and chemistry.
  • Another participant emphasizes that special relativity allows for effective space travel without needing to change the speed of light, as time dilation and distance contraction occur at relativistic speeds.

Areas of Agreement / Disagreement

Participants express multiple competing views regarding the alteration of the speed of light and its implications. There is no consensus on whether the speed of light can be changed or what the consequences of such a change would be.

Contextual Notes

Some discussions involve speculative scenarios about changing fundamental constants and their effects on the universe, which remain unresolved and depend on various assumptions.

  • #301
bino said:
i understand what the apparatus was suppose to do and what it looked like. i don't see how it could be considered a valid test to prove anything.
Tom Mattson said:
Read Chapter 1 of the book I linked you to. It explains everything.
bino, did you?
 
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  • #302
bino said:
if the Earth moves through it then the ether has to either move around the Earth or move through the earth.

The hypothetical aether does not interact with matter, so the motion of the Earth through the aether does not affect it in any way.

i understand what the apparatus was suppose to do and what it looked like. i don't see how it could be considered a valid test to prove anything.

No, I don't think you do understand what it was supposed to do. When I told you that you should read Chapter 1, I did not mean for you to simply look at the pictures. I meant for you to read the text and follow the math. The aether model makes predictions regarding the MMX, and those predictions were not met.
 
  • #303
You drive up to a four way intersection behind a car which is going the same speed as you. He doesn't stop and neither does a car coming from the other direction. They are both going 40 mph and ram into each other at the midpoint of the intersection.

If they had been going the same direction they wouldn't have hit together, for the same reason you didn't hit into the car in front of you. SO:
If a beam of light is moving in a different direction than another beam of light, it is NOT in the same inertial frame, because they can collide.
 
  • #304
bino is just playing dumb, he knows how to read, I say READ THE SR BOOK and stop asking questions which could be answered easily by the book.
 
  • #305
Nenad said:
bino is just playing dumb, he knows how to read, I say READ THE SR BOOK and stop asking questions which could be answered easily by the book.

that's my opinion too, his unique style of capitalization and short two-line responses appears to me to be a calculated style to make him look dumb. in other words i think he's trolling.
 
  • #306
i read up to page 11 in the book i have not had time to read further yet. but i did read all about the m&m experiment. so then the ether was suppose to interact only with the light and has no effect on anything else? that makes sense. but then it still only proves there is no ether.
 

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