When the speed of light is slower than it should be.

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Homework Help Overview

The discussion revolves around a hypothetical scenario where the speed of light is significantly reduced to 20 m/s, prompting participants to explore the implications of this change on daily life and physics concepts, particularly in the context of Special Relativity.

Discussion Character

  • Exploratory, Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants discuss various implications of a slower speed of light, including potential effects on perception and biological processes. Questions arise regarding the fundamentals of Special Relativity and its relevance to the scenario, with some participants expressing uncertainty about their understanding of the concepts.

Discussion Status

The conversation is ongoing, with participants sharing their knowledge and resources related to Special Relativity. Some guidance has been offered regarding the foundational postulates of relativity, and there is an exploration of differing interpretations of the implications of a slower speed of light.

Contextual Notes

Participants mention their backgrounds, including a biology major's struggle with physics concepts, and the limitations of available resources, such as textbooks that focus more on problem-solving than on real-world applications.

Aizenta Tyriel
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Homework Statement



Name several ways in which our life would be different if the speed of light is 20 m/s rather than its actual value.

Homework Equations


Does it also affect our biological clock?

The Attempt at a Solution



I believe that if your would travel any vehicle at opposite direction of the sun, your speed is much faster than of the photons so i believe you would experience absolute darkness. Any ideas?
 
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What do you know about Special Relativity that applies here?

Also, what class is this homework for?
 
Drakkith said:
What do you know about Special Relativity that applies here?

Also, what class is this homework for?

This is for my Modern Physics class. I'm not really good at this. I only know few basics like time is relative to the observer and its always link with space. It slows down if the velocity is almost the same as that of the light's speed and others.
 
Do you have any books or class material that explain the basics of Relativity?
 
Drakkith said:
Do you have any books or class material that explain the basics of Relativity?

Yes, Schaums Outlines College Physics Book. But this only contains solutions and problem solving and less applications to daily life.The rest are high school Physics book which has no information for my problem.
 
Aizenta Tyriel said:
Yes, Schaums Outlines College Physics Book. But this only contains solutions and problem solving and less applications to daily life.

Does it cover the basic rules of relativity in it? There's one very, very important one that you're forgetting here. :wink:
 
Drakkith said:
Does it cover the basic rules of relativity in it? There's one very, very important one that you're forgetting here. :wink:

Sir, do you mean the first and second postulates? sorry, i am a biology major and sucks at physics.
 
Indeed. What do those postulates say and how might they apply to this situation?
 
Drakkith said:
Indeed. What do those postulates say and how might they apply to this situation?

As far as i know, the laws of physics is constant in all inertial reference frame and the light's speed in free space has the same value for all observers, regardless of their state of motion. that is what the postulates state but it was highlighted there that nothing travels faster than light so i really don't get the idea if it slows down.
 
  • #10
Notice what you just wrote vs what you wrote in your original question:

Aizenta Tyriel said:
I believe that if your would travel any vehicle at opposite direction of the sun, your speed is much faster than of the photons so i believe you would experience absolute darkness.

Aizenta Tyriel said:
that is what the postulates state but it was highlighted there that nothing travels faster than light

Do you see a disagreement here?
 

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