Relativity & Computer Calculations: Speed Up 300x?

Click For Summary

Discussion Overview

The discussion revolves around the implications of relativity on computer calculations, particularly in high-speed environments such as particle accelerators. Participants explore the potential for faster computation and information transmission at relativistic speeds, examining the effects of time dilation and reference frames.

Discussion Character

  • Debate/contested
  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • Some participants suggest that machines based on time counting could operate faster in high-speed systems, potentially aiding in decryption and calculations.
  • Others argue that as machines approach relativistic speeds, they would actually run slower from the perspective of an observer on Earth due to time dilation effects.
  • A participant proposes that the transmission of results could occur after computations are completed, but this is challenged by others who emphasize the impact of time dilation on computation time.
  • Some participants discuss the analogy of the "twin paradox," suggesting that a computer moving at relativistic speeds would have less time to perform calculations compared to one at rest on Earth.
  • There are repeated assertions that sending the answer to a problem would not occur until after the computation is finished, highlighting the complexities of time dilation and transmission time.
  • One participant questions whether a slower-moving computer could yield faster results, while others clarify that the scenario is more complex than simply comparing speeds.
  • Some participants explore the idea of sending Earth on a relativistic journey to experience less elapsed time, but this is noted as impractical.
  • A later reply introduces the concept of a spacetime diagram to illustrate the complexities of the discussion.

Areas of Agreement / Disagreement

Participants express multiple competing views regarding the effects of relativity on computation and information transmission. The discussion remains unresolved, with no consensus reached on the feasibility of faster calculations through relativistic effects.

Contextual Notes

Limitations include the dependence on specific assumptions about reference frames and the complexities of time dilation, which are not fully resolved in the discussion.

danielhaish
Messages
152
Reaction score
10
TL;DR
In higher speed the time is slower so the computer can make the calculation that depends on time count faster
there is many analog dividing machine that base on time counting . so does this machines work faster on height speed system such as
Particle Accelerator it may help in decryption of public encryption and other coculation .
It looked at relative calculator and in the speed that close to the speed of light you can get that it will be 300 time faster
 
Physics news on Phys.org
On the contrary, the machines would be slower the faster they go relative to you and I here on Earth's surface. At 0.866c a computer would experience about 1 second of time for every 2 seconds here on Earth, roughly half of 'normal'. The clockrate of a modern processor of, say, 4 ghz, would only be 2 ghz from our point of view.

Remember that while the computer itself would also see our own clocks here on Earth ticking at a slower speed, the information has to be sent to us in our own reference frame. We aren't the ones who would go to the computer's reference frame.
 
  • Like
Likes   Reactions: danielhaish
Yesh bu the information may be send after the all cuclation
 
Doesn't matter. What you are proposing is a variant on the "twin paradox" scenario with the computer (and possibly its communication links) being the traveling twin. The computer has less time to perform its calculations than one at rest on Earth would have.
 
Lats say you have really hard question in math and solving it takes 20hours but the answer of the question is only 1 digit number so you can sned it faster thrn the time it take to solve it it not about information it about actions for one direction function
 
  • Sad
Likes   Reactions: weirdoguy and Motore
danielhaish said:
Lats say you have really hard question in math and solving it takes 20hours but the answer of the question is only 1 digit number so you can sned it faster thrn thr time it take to solve it it not aboyt information it about actions
You apparently are not understanding the answer Drakkith gave you. Sending the answer to the math problem would not occur until LONG after the computation was finished on Earth. You have time dilation backwards. Please study it before posting on this again.
 
danielhaish said:
Lats say you have really hard question in math and solving it takes 20hours but the answer of the question is only 1 digit number so you can sned it faster thrn the time it take to solve it it not about information it about actions for one direction function
It doesn't matter. As viewed from Earth, the moving computer runs slowly. It would take (for example) two hours by Earth clocks to do a computation the computer (by its own clock) needs one hour to do, plus the transmission time. You could just use a computer on Earth and get the answer in an hour.
 
How do I know that the transmission time is the same time as solving the problem
 
danielhaish said:
How do I know that the transmission time is the same time as solving the problem
It isn't. Why would it be? The problem with your idea is that it takes longer for the traveling computer to do the calculation than one on Earth. The transmission time just adds more time to that.
 
  • #10
So I need the other computer to move slower then Earth and then the time will work faster on it?
 
  • #11
danielhaish said:
So I need the other computer to move slower then Earth and then the time will work faster on it?
No. This isn't about who is moving faster - there is no such thing in any absolute sense. It's about who is not moving inertially (at least in a simplistic scenario like this one). To get the Earth to experience less elapsed time you need the Earth to follow a non-inertial path. That means you need to accelerate the Earth to near light speed, stop it, turn it around, and come back to the computer. That isn't practical.
 
  • Like
Likes   Reactions: danielhaish
  • #12
Now i got it
 
  • #13
Possibly if the computer is in outer space, and you're at the center of a large, dense planet, you could obtain the answer more quickly.
 
  • #14
Just build a slower computer and voila! your computer is now faster relative to that slower computer.
 
  • #15
This would work if you kept the computer in an inertial frame and then sent the Earth off on an out-and-back relativistic journey. Do not recommend.
 
  • #16
klotza said:
This would work if you kept the computer in an inertial frame and then sent the Earth off on an out-and-back relativistic journey. Do not recommend.
Do you really need the out-and-back leg of the journey, you don't need physical access to the computer? You could send the answer back at near light speed.

Now let me answer my own question. No you can't send the answer "back" you can only send the answer forward in time. Thus you need to wait for the end of the computation to transmit the answer. Whereas, if you send the Earth on a relativistic journey you could time your journey such that you return to the stationary computer in time the read the answer. So out-and-back is required.

I put together a space time diagram to demonstrate.
https://www.spacetimeglobe.com/a/GULxNZhd
 

Similar threads

  • · Replies 18 ·
Replies
18
Views
2K
  • · Replies 29 ·
Replies
29
Views
2K
  • · Replies 9 ·
Replies
9
Views
2K
  • · Replies 18 ·
Replies
18
Views
2K
  • · Replies 22 ·
Replies
22
Views
1K
  • · Replies 6 ·
Replies
6
Views
2K
  • · Replies 45 ·
2
Replies
45
Views
5K
  • · Replies 21 ·
Replies
21
Views
5K
  • · Replies 1 ·
Replies
1
Views
1K
  • · Replies 4 ·
Replies
4
Views
1K