SmithAir747 From United States of America, joined Jan 2004, 1741 posts, RR: 26
Reply 1, posted (10 years 5 days 11 hours ago) and read 1692 times:
I find time travel to be very intriguing--and possible someday! Right now--it's possible--albeit now in dreams. I have had multiple vivid retrograde time-travel dreams.
IMHO, it remains to be decided whether time is a kind of energy or matter; I wonder if there are particles called "chronitons", or if time exists in the form of waves. Time is thought of as the fourth dimension. The known three dimensions can be manipulated, so why couldn't we somehow manipulate time--assuming it's a kind of energy or matter?
Next, we would need to develop technology to manipulate time.
If time travel is proven to be feasible, think of the possibilities!
I believe that time travel would be a VERY lucrative form of tourism! For example, I could take my camera along with me in whatever time machine there is, and bring back lots of photos from the past.
Whether people in other times could see you or not is not known. Or whether your presence in another time (past or future) would affect the timeline.
I would like to go back into my childhood with my camera, take photos of the operating rooms I have been in (20-30 times already) and other places I've been to, even my house as it appeared back then.
I would also go back in time to my local airport (FWA) (as it was in mainline days) and take lots of photos of the DC-9s, 727s, and other mainline jets that visited it back then--and then submit these photos to A.net! I wonder if they would accept my "time-travelled" photos??
On a larger scale, if I were able to introduce time travel as a form of tourism, it would be quite lucrative. Just think of the possibilities of sending "tourists" back in time to their chosen period of time (even before their lifetimes), with cameras! I bet people would pay big money to do this! The infrastructure would be like Star Trek's "atavachron", with a whole library of historical time periods that people could be sent back to--and hopefully, return from! Do you want to revisit your childhood, or have you always wondered what it would be like to join a wagon train across the Western frontier, or relive the Renaissance?
I'm currently writing an autobiography; retrograde time travel (with my camera, of course) would provide so many pictures from my past (my surgeries, my family life, all the places I've been, school life, speech camp, etc) that would supplement my memories (which inevitably fade with time), as would any documents and artifacts I managed to capture from my past. These photos, artifacts, and documents, many of which I have never gotten to capture in real life, would be invaluable historical documents on my life, not just memories. In other words, using time travel, I would be able to capture as many photos as possible, as well as many of my documents, my old toys, and other artifacts as possible (which were lost in my real life).
The possibilities of time travel are endless.
I will praise thee; for I am fearfully and wonderfully made... (Psalm 139:14)
RichardPrice From , joined Dec 1969, posts, RR:
Reply 6, posted (10 years 5 days 11 hours ago) and read 1679 times:
Think about this:
You can only judge velocity because there are differences between one body and another otherwise it all looks like its standing together, so is the same true for time? Is there a part of us that runs at a different time rate so we can judge the passing of time?
Kaddyuk From Wallis and Futuna, joined Nov 2001, 4126 posts, RR: 23
Reply 10, posted (10 years 5 days 11 hours ago) and read 1658 times:
Time is only something percived by humans. it doesnt actually exist... We only have a defined scale of measuring this "observation". That is why what feels like an hour for one person will seem like an eternity for another!
Whoever said "laughter is the best medicine" never had Gonorrhea
DLKAPA From , joined Dec 1969, posts, RR:
Reply 16, posted (10 years 5 days 10 hours ago) and read 1604 times:
Quoting Kaddyuk (Reply 10): Time is only something percived by humans. it doesnt actually exist... We only have a defined scale of measuring this "observation". That is why what feels like an hour for one person will seem like an eternity for another!
Time does exist, it is the natural progression of the universe since the big bang. According to Hubble's Law, the recession velocity (speed it moves away from us) of any given galaxy in the universe is directly proportional to that galaxies distance, with the constant in proportionality, H0 also known as Hubble's Constant, being (currently believed to be) 70 Km/s/Mpc. What's interesting is that 1/H0 gives a value in s, time. What's even more interesting is that for every galaxy in the known universe, 1/H0 is exactly the same. This is how the age of the universe is calculated.
What's also interesting is that if you accelerate a particle to c, the speed of light in a vacuum, time progression of that particle completely ceases. It stops in time. The implication of this being that if a person could accelerate to the speed of light, the person would cease to see time progressing around him...not that it wouldn't be, 2 seconds relative to the person would be 10,000 years to the rest of the universe.
My theory is that time travel is indeed possible at this very moment, but you'd need something very powerful to survive the process. When a neutron star becomes smaller than it's Schwarszchild radus, the radius at which the gravitational escape speed on the surface of the star escapes the speed of light (it's relative to the star's mass), we call this a black hole. As you enter a black hole you pass through the event horizon, the point in space at which the gravitational escape speed is the speed of light. When you cross through the event horizon, you become accelerated to the speed of light, so effectively you stay at the event horizon in your time frame. Black holes have been observed to be spitting out debris, so, assuming you're at the speed of light, time stops in your time frame, until you get spat out at which point your time frame rejoins with the universal time frame...many, many, many years later.
Good point.....Time is a constant and never changes, it's peoples perception of time that changes......hence watching a kettle boiling always takes longer. But, there's tons of theories out there that are for and against. Someone mentioned that time travel doesn't exisit because we haven't been visited yet.....well, if a time travel machine is invented one week from now, how can it travel back in time past the point in which it was made, meaning it is travelling to a pointi n space/time where it never exisisted in the 1st place? That's but one of the theories........we think we know alot about science etc, but we're not even sure about relativity anymore and we haven't even touched upon quantum physics!!
In the dark you can't see ugly, but you can feel fat
Get your money out before the crash of '08, keep your nerve until it dips for the third time in a row within a 15 month period, there will be no recovery after the third one, get out as soon as the graph turns.
Tu204 From Russia, joined Mar 2006, 1472 posts, RR: 17
Reply 21, posted (10 years 4 days 12 hours ago) and read 1517 times:
Quoting Jafa39 (Reply 20): Get your money out before the crash of '08, keep your nerve until it dips for the third time in a row within a 15 month period, there will be no recovery after the third one, get out as soon as the graph turns.
Don't say I didn't warn you
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I do not dream about movie stars, they must dream about me for I am real and they are not. - Alexander Popov