The speed of light is taken as the universal speed limit, but the size and age of the universe implies that the universe expands faster than light speed 🙃 Inflation
Einstein already made two serious mistakes at the beginning of his SRT generation!
a) He disregarded the symmetry of "relativity" (by motion) by omitting one of the two observers (two systems per one motion).
b) He claimed that the distortions (per motion) of the images correspond to the physical reality of what is depicted;-)
Result: unscientific, nonsensic SRT and GRT. No "time travel".
First semester level: critizism of theories;-)
Aside a scientist:
Edwin Hubble. The Problem of the Expanding Universe. 1942.
😉
Universe = totality of all: uni/one collection, all in uni/one relation: All.
A concept only. Without a physical beginning or extent (except the number of parts).
But strictly speaking, it is uni, i.e. one, so it cannot be increased;-)
Ordinary particles which have mass speed up as they gain energy.
Faster than light tachyons, being 'anti-mass' particles, would actually slow down as they gain energy, with the speed of light being their slowest possible speed.
However, 'anti-mass' still constitutes mass-energy which means that tachyons should still have some gravitational effect.
It’s possible highly sensitive detectors could spot this effect.
P.S. Did you know that the word “tachyon” is derived from the Greek word 'tachy', meaning swift?
I read a medical article that says too much winking may have negative effects on the brain!
Here's a link that gives a thorough explanation of how distant galaxies can recede from us faster than light:
https://www.universetoday.com/119068/how-can-space-travel-faster-than-the-speed-of-light/
Quote:
"The answer has to do with the difference between special relativity and general relativity. Special relativity requires what is called an “inertial reference frame” – more simply, a backdrop. According to this theory, the speed of light is the same when compared in all inertial reference frames. Whether an observer is sitting still on a park bench on planet Earth or zooming past Neptune in a futuristic high-velocity rocket ship, the speed of light is always the same. A photon always travels away from the observer at 300,000,000 meters per second, and he or she will never catch up.
General relativity, however, describes the fabric of spacetime itself. In this theory, there is no inertial reference frame. Spacetime is not expanding with respect to anything outside of itself, so the the speed of light as a limit on its velocity doesn’t apply. Yes, galaxies outside of our Hubble sphere are receding from us faster than the speed of light. But the galaxies themselves aren’t breaking any cosmic speed limits. To an observer within one of those galaxies, nothing violates special relativity at all. It is the space in between us and those galaxies that is rapidly proliferating and stretching exponentially."
It's a British sense of humour thing. Replace the 'i' in winking with an 'A'. And you get something else...
I appreciate and respect your replies, but I don't think that is the case since this is an International forum, not a British one.
Also, exclamation mark and no emoticon in that post.
No fun at all.
I was only trying to explain it, precisely because this is an international forum and the meaning would have been obscure...
I said I appreciated your reply, but not that humorous post even after your appreciated explanation.
It should be explained by the poster first, not after.
And anyway, there are also emoticons for this.
Thank you.
It should be explained by the poster first, not after.
And anyway, there are also emoticons for this.
Thank you.
Anyway, anyone seen Time
Trap? Currently lurking on Netflix. Can't really talk much about it without spoilers...
Trap? Currently lurking on Netflix. Can't really talk much about it without spoilers...
If you were a Decca executive and could go back to 1962 and sign The Beatles, how different would popular music be?
Would they have had as good and creative a producer - possibly; would they have been as big and influential - possibly?
George Martin saw their potential, asked them to ditch Pete Best for recording and asked them re-arrange Please Please Me from a ballad to an uptempo number, thereby getting them their first number one. Two fundamental steps in breaking the band.
Geoff
Would they have had as good and creative a producer - possibly; would they have been as big and influential - possibly?
George Martin saw their potential, asked them to ditch Pete Best for recording and asked them re-arrange Please Please Me from a ballad to an uptempo number, thereby getting them their first number one. Two fundamental steps in breaking the band.
Geoff
Good movie, but it never explains why the time trap is there. I'm guessing some super dense material in the hole.
To guard The Fountain of Youth I think, as a trap for the unwary. But the HOW it's supposed to work is anyone's guess...
Some interesting Craigslist ads from time travelers:
https://www.strangerdimensions.com/2015/03/20/the-craigslist-time-travelers/
https://www.strangerdimensions.com/2015/03/20/the-craigslist-time-travelers/