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cdux
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If airplanes' highest speed depends directly on the air it is moving through and not the ground, does it mean we can build a time machine if only the air moves near the speed of light?
cdux said:If airplanes' highest speed depends directly on the air it is moving through and not the ground, does it mean we can build a time machine if only the air moves near the speed of light?
I had the impression time dilation is consensus accepted.HallsofIvy said:Sorry but I can't make heads or tails of this! First there is no clear evidence that "moving near the speed of light" will help you build a time machine!
Time dilation is well established, but it only goes in one direction.cdux said:I had the impression time dilation is consensus accepted.
cdux said:I had the impression time dilation is consensus accepted.
I thought it was accepted that any object moving faster than another is effectively in a time machine going into the future in relation to the slower object. It's also seen experimentally and on GPS satellites.Nugatory said:Both consensus-accepted and well and thoroughly experimentally verified. But that has absolutely nothing to do with building a time machine - at least what most people are thinking of when they say "time machine".
cdux said:I thought it was accepted that any object moving faster than another is effectively in a time machine going into the future in relation to the slower object. It's also seen experimentally and on GPS satellites.
Yes.sophiecentaur said:By your argument, everything is a time machine because SR always applies to moving objects.
cdux said:Yes.
cdux said:I thought it was accepted that any object moving faster than another is effectively in a time machine going into the future in relation to the slower object. It's also seen experimentally and on GPS satellites.
Why do you say that?Nugatory said:You may have the sense of the dilation backwards as well?
cdux said:Why do you say that?
No, airplanes cannot reach the speed of light. According to the theory of relativity, the speed of light is the maximum speed that can be reached in the universe. The fastest airplanes can only reach speeds of about Mach 3, which is much slower than the speed of light.
Airplanes can get close to the speed of light, but they will never be able to reach it. As mentioned before, the speed of light is the absolute speed limit in the universe. The fastest airplanes, such as the Lockheed SR-71 Blackbird, can reach speeds of about Mach 3.3, which is only a fraction of the speed of light.
There are several reasons why airplanes cannot reach the speed of light. One reason is that as an object approaches the speed of light, its mass increases exponentially, making it more and more difficult to accelerate. Additionally, the amount of energy required to reach the speed of light is practically impossible for current technology to generate.
It is highly unlikely that technology will ever advance to the point where airplanes can reach the speed of light. As mentioned before, the amount of energy required is immense and currently impossible for us to generate. Even if we were able to overcome this hurdle, the effects of time dilation would make it impractical for humans to travel at such speeds.
No, airplanes are not capable of time travel. Time travel is a concept that is still purely theoretical and has not been proven to be possible. While airplanes can travel at high speeds and experience time dilation, they cannot travel through time in the way that is often depicted in science fiction.