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Ways To Travel Faster Than Light Without Violating Relativity
StartsWithABang writes: It's one of the cardinal laws of physics and the underlying principle of Einstein's relativity itself: the fact that there's a universal speed limit to the motion of anything through space and time, the speed of light, or c. Light itself will always move at this speed (as well as certain other phenomena, like the force of gravity), while anything with mass — like all known particles of matter and antimatter — will always move slower than that. But if you want something to travel faster-than-light, you aren't, as you might think, relegated to the realm of science fiction. There are real, physical phenomena that do exactly this, and yet are perfectly consistent with relativity.
The whole thing hinges on the phrase in the first paragraph; "depending on what you mean by a "thing", "faster-than-light", and "travel""
If you want to play around with semantics and definitions, then you've got an article. Otherwise, nothing new here. Speed of light unchallenged.
Yeah ... came here, read the article, want my money back.
... however if you shout at the door, the sounds will be heard softly on the other side? In this case of "breaking the light speed barrier" our calculations show that not only are your vocal sound waves traveling faster than the speed of light but since light never got through the door and time still marches on, you are approaching a speed infinitely faster than the speed of light!
What a complete waste of time this article was!
Did you know that if you try to send a photon through a solid wooden door, it won't ever make it
Mind blown? Or are you just angry that I got you to read that horseshit?
"All Ethan, all the time. Now lets go to Ethan for the forecast"
"Thank you Ethan, today will be mostly medium.com with some light links to other sites"
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"Well Ethan, Dice Holding have announced a shocking drop in profits after letting once popular Slashdot.com devolve into a medium.com link aggregator. Sharholders are angry, but DHI spokesperson Ethan Siegel insists the firm is making all the right moves, and it's purely market forces outside there control that have lead to this huge decline in readership. Now back to you Ethan"
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It's very easy to travel 100 light years in less than 100 years. Thus for all intents and purposes, one can travel distances at faster than the speed of light. The theory of relativity does not prevent this. You can without violating any laws accelerate a rocket ship at a comfortable 1g for as long as your fuel holds out. You will not get more massive. It will not take increasing amounts of fuel to maintain the 1g acceleration. If you accelerate for 1 year at 1g then you will know that you covering the distance to your destination at faster than the speed of light.
What is true about relativity is this: and OUTSIDE observer will see you traveling at less than the speed of light. But from your perspective you can travel across galaxies in your lifespan with ease. So for all intents and purposes, you can go faster than the speed of light provided we everything from your point of view (which is all that matters). We define speed as the distance to your destination measured in an inertia frame, divided by the time it takes you to get there, all measurements from your perspective.
the way reletivity is taught totally confuses people on this point: A HUMAN COULD EASILY TRAVEL ANYPLACE IN THE MILYWAY WITHIN THEIR LIFETIME WITH EXISTING TECHNOLOGY, except for the part about bringing your own fuel. we just don't know how to bring enough fuel to maintain a 1g acceleration for 50 years. This is why these new reactionless EM drives that NASA and others are toying with are really interesting. No doubt they are bullshit since they seem to defy newtons laws, but if it turns out they work.... see you on on the other side of the galaxy baby.
Some drink at the fountain of knowledge. Others just gargle.
No. That's not quite how quantum entanglement works.
It's a bit more like a pair of boxes that contain the same book. If you open both of them at once, you're not blinking the book across instantly. The book exists in both locations at once, but cannot be seen until the box is opened.
As far as we are aware, quantum entanglement is like a pair of dice that are guaranteed to have the same result after you roll them once. We don't actually know for sure if the roll is random, because cannot break the mechanics of the dice into separate components (which is why the mechanics are "quantum").