Is comunication faster that light possible: yes( maybe )

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SUMMARY

The discussion centers on the possibility of faster-than-light communication using a hypothetical scenario involving a rigid stick between Earth and the Sun. One participant argues that pushing the stick would result in instantaneous movement at the other end, while another participant counters this claim by emphasizing the electromagnetic forces that maintain the stick's integrity, preventing any faster-than-light transmission. The conversation references a relevant FAQ on Physics Forums for further clarification on the topic.

PREREQUISITES
  • Understanding of basic physics concepts, particularly electromagnetic forces
  • Familiarity with the theory of relativity and its implications on speed limits
  • Knowledge of rigid body mechanics and material properties
  • Awareness of scientific communication and common misconceptions in physics
NEXT STEPS
  • Research the implications of the theory of relativity on communication methods
  • Explore the properties of electromagnetic forces in rigid bodies
  • Study the concept of signal transmission limits in physics
  • Review the FAQ on Physics Forums regarding faster-than-light communication
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Physics enthusiasts, students studying relativity, and anyone interested in the theoretical limits of communication and signal transmission in the context of modern physics.

amateur physic
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i think it is possible but its too complicated to write down in english so i think comunication faster than light is possible without anything acctualy moving faster than light. If you had a big stick between Earth and the sun and you push the stick towards the sun for 1 inch it will instantly move at the other side too. for light to come from sun it takes 7 min and for this to move at the other side after you push it on your side nothing.look at the image so you can get a better understanding.
 
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amateur physic said:
If you had a big stick between Earth and the sun and you push the stick towards the sun for 1 inch it will instantly move at the other side too.
No. You're not taking into account the electromagnetic forces that hold the stick together. The other end won't move faster than the speed of light.
 
We have a FAQ for this question: https://www.physicsforums.com/threads/can-i-send-a-signal-faster-than-light-by-pushing-a-rigid-rod.536289/

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