Posts: 2009
Threads: 2
Joined: October 8, 2012
Reputation:
26
RE: [Past|Present|Future] Timetravel - Hoax?
July 4, 2015 at 11:40 am
First off.... Augustine? They're going with a guy who had no clue about relativity?
And, why is this in a philosophy article and not a physics one?
GPS satellites have no "mind", but they perceive time moving at a different speed than we do.
If you took a ship travelling 99% the speed of light, blasted off on Jan 1, 2010 and traveled for one week, when you returned your calendar in the ship would say Jan 8, 2010. But calendars on Earth would say Jan 1, 2017.
Which "mind" is this discrepancy of time in?
Posts: 4664
Threads: 100
Joined: November 22, 2013
Reputation:
39
[Past|Present|Future] Timetravel - Hoax?
July 4, 2015 at 12:01 pm
Time only goes forward but never backwards.
We naturally travel into the future. The rate at which we travel can be changed. When you approach the speed of light you are slowed down dramatically. The rest of the universe ticks on at the "normal " rate. When you drop out of your hyper speed it just appears that you jumped forward in time. Its effect is not much different than being cryogenically preserved and then thawed out in a few hundred years (like Buck Rogers). You would wake up in the future.
Traveling back in time however is quite impossible as the past does not exist anymore. You would have to put every particle back in its previous location in space with the same energy level, speed, direction, etc. Even if you could do that it really wouldn't be the past.
Posts: 4196
Threads: 60
Joined: September 8, 2011
Reputation:
30
RE: [Past|Present|Future] Timetravel - Hoax?
July 4, 2015 at 12:11 pm
(July 4, 2015 at 10:44 am)pool Wrote: (July 4, 2015 at 9:09 am)vorlon13 Wrote: The past and future are separated by, if I recall correctly, 1/10^-43 of a second, not an 'infinitely' short interval.
Why doesn't it ever occur to anybody when they come up with something that they are not the first to think of it ?
That's very interesting could you provide a source of that information?
Also,i meant to say the time interval between past and present & present and future not past and future.
Are you aware of the answer to this question?
The smallest unit of time or space is a Planck unit. Time and space are believed to be discreet rather than continuous. At this time, there is no proof of that concept nor is there likely to be, at least in the near future, but QM describes the inability of a photon to exist between these Planck units.
You make people miserable and there's nothing they can do about it, just like god.
-- Homer Simpson
God has no place within these walls, just as facts have no place within organized religion.
-- Superintendent Chalmers
Science is like a blabbermouth who ruins a movie by telling you how it ends. There are some things we don't want to know. Important things.
-- Ned Flanders
Once something's been approved by the government, it's no longer immoral.
-- The Rev Lovejoy
Posts: 5356
Threads: 178
Joined: June 28, 2015
Reputation:
35
RE: [Past|Present|Future] Timetravel - Hoax?
July 4, 2015 at 1:32 pm
Ah.
I'm a hopeless dummy with maths and actual physics.
I'll probably never understand why time slows down for an object when it reaches the speed of light.
If only someone had a keen knowledge of the process and could explain it in very simple terms...
:> pls pls pls i'd be VERY grateful if someone did that in this thread
Posts: 18504
Threads: 79
Joined: May 29, 2010
Reputation:
125
RE: [Past|Present|Future] Timetravel - Hoax?
July 4, 2015 at 1:36 pm
I lack the motivation to hand you the knowledge that you can thrive to obtain. just put your mind into it.
My teacher fees are 50 euros per minute.
Posts: 5356
Threads: 178
Joined: June 28, 2015
Reputation:
35
RE: [Past|Present|Future] Timetravel - Hoax?
July 4, 2015 at 1:53 pm
(This post was last modified: July 4, 2015 at 1:54 pm by ErGingerbreadMandude.)
(July 4, 2015 at 1:36 pm)LastPoet Wrote: I lack the motivation to hand you the knowledge that you can thrive to obtain. just put your mind into it.
My teacher fees are 50 euros per minute.
Putting my mind into it,thriving to obtain knowledge etc are only worthwhile if i learn something beneficial in the process otherwise it is simply a waste of my time.
Seeing how my area of interest is Programming i don't see how what i learn in the process of trying to understand how this works would benefit me.
So its a no.
Would it be a fair trade if i taught you programming for free and you explain how this works to me?
Posts: 13051
Threads: 66
Joined: February 7, 2011
Reputation:
92
RE: [Past|Present|Future] Timetravel - Hoax?
July 4, 2015 at 2:03 pm
(This post was last modified: July 4, 2015 at 2:03 pm by Faith No More.)
If you're truly interested in learning about time, which is way too complicated of a subject to explain in a forum post, I suggest reading The Fabric of the Cosmos by Brian Greene. It goes over relativity and how our perception of time differs from how the mathematics describe it, but it's all intended for the layman. It's written to explain things for people that don't have a degree in physics or math.
It's definitely a good place to start.
Even if the open windows of science at first make us shiver after the cozy indoor warmth of traditional humanizing myths, in the end the fresh air brings vigor, and the great spaces have a splendor of their own - Bertrand Russell
Posts: 18510
Threads: 129
Joined: January 19, 2014
Reputation:
91
RE: [Past|Present|Future] Timetravel - Hoax?
July 4, 2015 at 2:06 pm
Or, a very nice recent book more specialized on relativity than Greene, Mermin's "It's about time"
The fool hath said in his heart, There is a God. They are corrupt, they have done abominable works, there is none that doeth good.
Psalm 14, KJV revised edition
Posts: 4196
Threads: 60
Joined: September 8, 2011
Reputation:
30
RE: [Past|Present|Future] Timetravel - Hoax?
July 4, 2015 at 2:25 pm
(July 4, 2015 at 1:32 pm)pool Wrote: Ah.
I'm a hopeless dummy with maths and actual physics.
I'll probably never understand why time slows down for an object when it reaches the speed of light.
If only someone had a keen knowledge of the process and could explain it in very simple terms...
:> pls pls pls i'd be VERY grateful if someone did that in this thread
http://casa.colorado.edu/~ajsh/sr/time.html
You make people miserable and there's nothing they can do about it, just like god.
-- Homer Simpson
God has no place within these walls, just as facts have no place within organized religion.
-- Superintendent Chalmers
Science is like a blabbermouth who ruins a movie by telling you how it ends. There are some things we don't want to know. Important things.
-- Ned Flanders
Once something's been approved by the government, it's no longer immoral.
-- The Rev Lovejoy
Posts: 7967
Threads: 38
Joined: March 18, 2014
Reputation:
54
RE: [Past|Present|Future] Timetravel - Hoax?
July 4, 2015 at 2:28 pm
(July 4, 2015 at 9:09 am)vorlon13 Wrote: Why doesn't it ever occur to anybody when they come up with something that they are not the first to think of it ?
Yep. In high school, while learning Pythagorean Theorem, I was awake late one night when I figured out that 3^2 + 4^2 = 5^2. Visions of Pulitzers danced in my head (ok, maybe not Pulitzers, but I thought I'd discovered something significant) until class the next day when my teacher said I'd found a Pythagorean Triple.
Oh....
I've found it's far more common for youths to think they've stumbled upon something earth shatteringly new, but it can happen to just about anyone, especially when they're learning (or even just thinking) about something that they knew little or nothing about before.
Thief and assassin for hire. Member in good standing of the Rogues Guild.
|
