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(io9)   Physics professor Brian Cox claims time travel is possible, but only into the future and not into the past. Naked, confused guy from the future unavailable for comment   (io9.com) divider line 93
    More: Interesting, cox, physics, interstellar travel, Professor Brian Cox, time dilations, British Science Festival, speed of light  
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2952 clicks; posted to Geek » on 13 Sep 2013 at 9:49 PM (45 weeks ago)   |  Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»



93 Comments   (+0 »)
   
View Voting Results: Smartest and Funniest
 
2013-09-13 06:16:34 PM
He's actually pretty cool and accurate. But when I watch his shows, my eyes close and I wake up in the future.
 
2013-09-13 06:23:41 PM
Shenanigans.
 
2013-09-13 07:13:08 PM
We ate all time traveling into the future all the time. Pause for a moment...see? It's later.
 
2013-09-13 07:16:03 PM
"Are" dammit
 
2013-09-13 07:21:48 PM
The most recent Infinite Monkey Cage (22Mb mp3 - about 30mins long) has Cox and NdGT discussing stability of worm holes and the possibility of using them for time travel or to break causality etc.  Worth a listen, especially if you've never seen heard this show before.
 
2013-09-13 08:15:56 PM

olddeegee: He's actually pretty cool and accurate. But when I watch his shows, my eyes close and I wake up in the future.


I like Cox. Wait, let me rephrase that.
 
2013-09-13 08:29:07 PM
What if time were a dimension just as valid as length and width and height?

THINK ABOUT IT
 
2013-09-13 08:36:47 PM
I love watching Prof Cox in Wonders of the Universe.
He looks deeply into the camera as if he longs for me.
 
2013-09-13 08:58:23 PM
The fundamental problem is that time is more like ball bearings than Euclidian dimensions.
 
2013-09-13 09:32:30 PM

Marcus Aurelius: The fundamental problem is that time is more like ball bearings than Euclidian dimensions.


What the hell you need ball bearings for?
 
2013-09-13 09:37:58 PM

Laocoon: Marcus Aurelius: The fundamental problem is that time is more like ball bearings than Euclidian dimensions.

What the hell you need ball bearings for?


To keep the wheels spinnin'.
 
2013-09-13 09:38:06 PM

Laocoon: Marcus Aurelius: The fundamental problem is that time is more like ball bearings than Euclidian dimensions.

What the hell you need ball bearings for?


Aw, come on guys, it's so simple. Maybe you need a refresher course. It's all ball bearings nowadays.
 
2013-09-13 10:03:20 PM

revrendjim: olddeegee: He's actually pretty cool and accurate. But when I watch his shows, my eyes close and I wake up in the future.

I like Cox. Wait, let me rephrase that.


www.myfriendthetv.com

Sorry there, Jenny: It's out there, and it is NOT coming back in.
 
2013-09-13 10:07:42 PM
He's dreamy. *swoons*
 
2013-09-13 10:16:29 PM
Brian Cox is not from around here. And by that I mean another solar system.
 
2013-09-13 10:18:12 PM
So is this guy claiming that the faster you go forward in space, the faster you go in time? So, all you have to do is repeat what has been known sense Einstein's time, and you're considered worthy of writing about?

Oh, he also spoke about stable wormholes and completely unknown (super-natural) energies.
 
2013-09-13 10:18:28 PM

revrendjim: olddeegee: He's actually pretty cool and accurate. But when I watch his shows, my eyes close and I wake up in the future.

I like Cox. Wait, let me rephrase that.


I can't get enough Cox - nope

Nothing brightens up my day like watching Cox on tv - damn it
 
2013-09-13 10:18:29 PM
Honestly, this is something that any respectable first year college physics student would be able to tell you.  The reason backwards time travel isn't possible is because it would require travelling faster than the speed of light, which remains theoretically impossible.  An infinite amount of energy is required to accelerate an object to the speed of light, making it impossible to reach, let alone go any faster.
 
2013-09-13 10:18:46 PM

fustanella: He's dreamy. *swoons*


His wife is no Bigfoot either.
 
2013-09-13 10:24:54 PM
Hmm, OK.  Didn't read the article, but i assume he's talking about special relativity here, and twin paradox is used often to illustrate this: one twin stays on Earth, the other goes off in a spaceship.  When the spaceship twin returns, he's only aged a little while everyone else is old or dead.  Thus, the spaceship twin has "travelled into the future!"
 
2013-09-13 10:38:43 PM
I guess it's Time for the Stars.
 
2013-09-13 10:41:52 PM
This may blow your mind, but we're traveling to the future RIGHT NOW
 
2013-09-13 10:42:14 PM
We need further research into the wibbly wobbly nature of this timey wimey stuff.
 
2013-09-13 10:44:14 PM
Shenanigans.
 
2013-09-13 10:45:49 PM
As Calvin once demonstrated in a classic strip, if you mail a letter to yourself, the delivery time ensures you'll be mailing it to your future self.

Try this, but save the return address. Now you'll know where to send information to your past self, and you can send back winning lottery numbers, hot stock tips, and the lowdown on upcoming mistakes to be avoided! You'll be living on easy street and always make the right move!

/ah sh*t. I should have charged a fee before revealing that amazing metaphysical discovery. Excuse me while I go mail a correction notice to my previous self.
 
2013-09-13 10:47:44 PM

revrendjim: We ate all time traveling into the future all the time. Pause for a moment...see? It's later.


No, man.  You're in the past.  I can see your time stamp.
 
2013-09-13 10:50:19 PM
i1129.photobucket.com
 
2013-09-13 10:55:57 PM
Brian Cox? The Linebacker?

www.realclearsports.com
 
2013-09-13 10:56:16 PM

roughridersfan: I guess it's Time for the Stars.


I'm still looking for The Door into Summer
 
2013-09-13 11:00:14 PM
Wasn't that the first few minutes of the original Planet of the Apes?
 
2013-09-13 11:06:44 PM
We've pretty much known this for almost 100 years now...
 
2013-09-13 11:15:23 PM

CavalierEternal: Brian Cox? The Linebacker?

[www.realclearsports.com image 280x400]


No, the rock star.



Keyboard-humping space hippy.

Hair-Metal-head.
 
2013-09-13 11:16:45 PM
This Brian Cox guy sounds shady.  As someone who never went to high school, I can confidently say there is no evidence at all to back up his claim.
 
2013-09-13 11:18:28 PM
 
2013-09-13 11:19:33 PM
It's called waking up after a nights sleep
 
2013-09-13 11:26:25 PM
Oblig

i.imgur.com
 
2013-09-13 11:28:22 PM

Dedmon: So is this guy claiming that the faster you go forward in space, the faster you go in time? So, all you have to do is repeat what has been known sense Einstein's time, and you're considered worthy of writing about?

Oh, he also spoke about stable wormholes and completely unknown (super-natural) energies.


I assume this has to do with the Science of Doctor Who program he's presenting for the fiftieth.
 
2013-09-13 11:38:55 PM
The future at least seems technically feasible to me. (Insofar as the fact the the physical concept of time differs from the human physiological concept of time.)

The past however,is tougher. As there is infinite time ahead of us, if time travel to the past was possible would we not have some evidence? This actually becomes a subjective topic as one must decide if future civilization(s) would be motivated to come back in time to anywhere before the present.

So if time travel backwards is or will be possible then Hitler was not even terrible enough to send someone or something back to 1889 to correct such an aberration
 
2013-09-13 11:41:48 PM
FTA: Cox pointed out this little trick of physics at a speech at the British Science Festival while discussing the merits of Doctor Who's TARDIS, but it probably isn't news to anyone with a basic knowledge of how Einstein's theory of Special Relativity works.

Yep, old news indeed.  Travel near the speed of light and your "time" slows down.  Or you can just park your spaceship near a singularity (black hole).  Just a rehash of old stuff.
 
2013-09-13 11:42:26 PM
images4.wikia.nocookie.net
 
2013-09-13 11:46:25 PM

chocolate covered poop: The future at least seems technically feasible to me. (Insofar as the fact the the physical concept of time differs from the human physiological concept of time.)

The past however,is tougher. As there is infinite time ahead of us, if time travel to the past was possible would we not have some evidence? This actually becomes a subjective topic as one must decide if future civilization(s) would be motivated to come back in time to anywhere before the present.

So if time travel backwards is or will be possible then Hitler was not even terrible enough to send someone or something back to 1889 to correct such an aberration


Here's the thing about changing the past: no one would know. Likely, the 'you' that traveled back to change things would cease to exist due to quantum fluctuation, to say nothing of the position of every atom, molecule, and string that composes the universe. Sure, you can travel back 75 years. Better hope you calculated for all that stuff I mentioned, otherwise, you're likely to end up inside the Earth's crust, at best. Likewise any 'instantaneous' travel to the future. Perhaps there is a way to 'observe' past or future events. Actually, we already do,just look at the night sky and BINGO! you're looking at something from a million years ago (in some cases). Now, observing FUTURE events, that's where it gets tricky...
 
2013-09-14 12:02:24 AM
So I can travel ahead to get the winning lottery number but I can't travel back to use it? What the fark is the point of that?

BTW, time travel to the future is already possible, it's called a coma.
 
2013-09-14 12:02:30 AM

chocolate covered poop: The future at least seems technically feasible to me. (Insofar as the fact the the physical concept of time differs from the human physiological concept of time.)

The past however,is tougher. As there is infinite time ahead of us, if time travel to the past was possible would we not have some evidence? This actually becomes a subjective topic as one must decide if future civilization(s) would be motivated to come back in time to anywhere before the present.

So if time travel backwards is or will be possible then Hitler was not even terrible enough to send someone or something back to 1889 to correct such an aberration


It's possible it's possible but each 'travel' event creates a new universe in which those changes take place. So, since it was/will be invented in this universe...you can travel from here, but not to here.

Or it's just not possible. (And...it's just not possible based on everything we know about the universe. No time travel. Not yours.)

/timeywimey
 
2013-09-14 12:35:42 AM
I think I saw a Futurama about this
 
2013-09-14 12:39:41 AM

Rob3Fan: I think I saw a Futurama about this


Yep, a good ol' sad one.
 
2013-09-14 12:40:54 AM
I told my young son that his bed is actually a time machine.  If he lies down and closes his eyes, he'll travel eight hours into the future when he wakes up.

He didn't buy it.
 
2013-09-14 12:53:16 AM

space1999: I told my young son that his bed is actually a time machine.  If he lies down and closes his eyes, he'll travel eight hours into the future when he wakes up.

He didn't buy it.


Well duh.  A REAL time bed allows you to wake up before you went to sleep.  Getting a negative eight hours can be rough, though.  The fabric of space-time is kind of scratchy.
 
2013-09-14 01:00:06 AM

Shadowknight: space1999: I told my young son that his bed is actually a time machine.  If he lies down and closes his eyes, he'll travel eight hours into the future when he wakes up.

He didn't buy it.

Well duh.  A REAL time bed allows you to wake up before you went to sleep.  Getting a negative eight hours can be rough, though.  The fabric of space-time is kind of scratchy.


Try 100% cotton with a thread count of 500 or better.
 
2013-09-14 01:07:08 AM
Oh yeah, sure. Like I'm going to listen to Hannibal Lecter pontificate on time travel.
 
2013-09-14 01:12:02 AM
What do we want? Time travel! When do we want it? That's irrelevant!

/obligatory
//also, you only need to hold the Time Travelers' Convention once....
 
2013-09-14 01:12:13 AM

Hagbardr: Shadowknight: space1999: I told my young son that his bed is actually a time machine.  If he lies down and closes his eyes, he'll travel eight hours into the future when he wakes up.

He didn't buy it.

Well duh.  A REAL time bed allows you to wake up before you went to sleep.  Getting a negative eight hours can be rough, though.  The fabric of space-time is kind of scratchy.

Try 100% cotton with a thread count of 500 or better.


I tried that, but the time bed kept sending me back to the plantation south, 1845.  

/that was a bad joke, and I'm sorry
 
2013-09-14 01:27:39 AM

ornithopter: What do we want? Time travel! When do we want it? That's irrelevant!

/obligatory
//also, you only need to hold the Time Travelers' Convention once....


How do we know that time travel is impossible?  We have never seen any time travelers!
 
2013-09-14 01:43:04 AM

Levian: Honestly, this is something that any respectable first year college physics student would be able to tell you.  The reason backwards time travel isn't possible is because it would require travelling faster than the speed of light, which remains theoretically impossible.  An infinite amount of energy is required to accelerate an object to the speed of light, making it impossible to reach, let alone go any faster.


When I turn on my kitchen light, I can take 2 steps into the room before it comes on.
So there.
 
2013-09-14 01:50:41 AM
Could I touch my future self without turning into goo?
 
2013-09-14 01:52:23 AM

gnosis301: Could I touch my future self without turning into goo?


Would you want to?
 
2013-09-14 01:56:25 AM

styckx: Oblig

[i.imgur.com image 315x210]




There is a hilarious movie on Netflix made about that ad called "safety not guaranteed". It has the hot chick from Parks & Recreations in it.
 
2013-09-14 01:57:13 AM

BafflerMeal: gnosis301: Could I touch my future self without turning into goo?

Would you want to?


Turn into goo? No. That's why I'm asking.
 
2013-09-14 02:02:08 AM
Ok let me ask you guys this: Say you were able to travel back in time and met your younger self.  If you gave him a blowjob, would that be gay?

/I'm asking for a guy a used to know
 
2013-09-14 02:05:02 AM

serial arseonist: Ok let me ask you guys this: Say you were able to travel back in time and met your younger self.  If you gave him a blowjob, would that be gay?

/I'm asking for a guy a used to know


How far would you get before turning into goo?
 
FNG [TotalFark]
2013-09-14 02:10:07 AM
I once heard a theory that time travel is theoretically possible, but you could only travel forward from the point the time machine became active.

Stewie, however, would beg to differ.
 
2013-09-14 02:11:43 AM

Hagbardr: We need further research into the wibbly wobbly nature of this timey wimey stuff.


The Willaby Wallaby nature?

/woo
//an elephant sat on you
///Willaby wallaby wee
//an elephant sat on me
/rum.
 
2013-09-14 02:13:27 AM

serial arseonist: Ok let me ask you guys this: Say you were able to travel back in time and met your younger self.  If you gave him a blowjob, would that be gay?

/I'm asking for a guy a used to know


Is it gay, or just masturbating?

Great question...lol
 
2013-09-14 02:25:14 AM
I invented a time machine that allows me to travel to the future at a rate of 1 second/second.
 
2013-09-14 02:29:21 AM

MatrixOutsider: I invented a time machine that allows me to travel to the future at a rate of 1 second/second.


You didn't invent that! I've been stuck in one my entire life

Though someone did invent a way to slow the process down
media.baycitizen.org
The guy on the stairs was 23 when he got in line
 
2013-09-14 03:02:27 AM

MatrixOutsider: I invented a time machine that allows me to travel to the future at a rate of 1 second/second.


i478.photobucket.com

/oblig.
 
2013-09-14 04:19:15 AM
"This is a picture of me when I was older"

"No shiat.  Lemme see that camera."
 
2013-09-14 04:21:21 AM

PsyLord: Travel near the speed of light and your "time" slows down.


Bzzzt wrong.

Accelerate to the speed of light... or any speed... and accelerate back in order to compare clocks.

Or, enter a gravity well, and then exit the gravity well in order to compare clocks.
 
2013-09-14 04:34:52 AM
Obligatory
www.nosnivelling.com
 
2013-09-14 04:59:42 AM

lasercannon: Obligatory
[www.nosnivelling.com image 660x728]


Is it bad that I've tried to memorise basic facts like that before just in case I somehow wind up in the past? All I need to do now is learn ancient languages.
 
2013-09-14 07:26:41 AM
I read about this in his newsletter The Cox Insider.
 
2013-09-14 07:32:26 AM
Ok, so 3d print me a time machine that can go 1000 years into the future. I need it by noon today.
 
2013-09-14 08:16:11 AM

assjuice: Ok, so 3d print me a time machine that can go 1000 years into the future. I need it by noon today.


I've made a few but they're all in the future now. I can't figure out the controls.
 
2013-09-14 08:37:23 AM
i36.photobucket.com

...begs to differ
 
2013-09-14 08:39:14 AM

Mugato: I read about this in his newsletter The Cox Insider.


I think I remember reading that.  Picked it up while I was waiting at a car dealership, Pinkly Taurus.
 
2013-09-14 08:42:20 AM

Nabb1: Laocoon: Marcus Aurelius: The fundamental problem is that time is more like ball bearings than Euclidian dimensions.

What the hell you need ball bearings for?

Aw, come on guys, it's so simple. Maybe you need a refresher course. It's all ball bearings nowadays.


You forgot the "Heeeyay!"...

Now prep that valve!
 
2013-09-14 08:47:49 AM

Levian: Honestly, this is something that any respectable first year college physics student would be able to tell you.  The reason backwards time travel isn't possible is because it would require travelling faster than the speed of light, which remains theoretically impossible.  An infinite amount of energy is required to accelerate an object to the speed of light, making it impossible to reach, let alone go any faster.


Clearly, you've never seen Star Trek. Or you could see how completely wrong you are.

/s
 
2013-09-14 08:49:39 AM
He needs a tambourine like Davy Jones.
 
2013-09-14 08:56:51 AM
 
2013-09-14 10:03:05 AM
The time travel in Primer is the best I've seen: you can only travel back to the point where you started the machine.
 
2013-09-14 10:10:46 AM
Time is gravity. We are falling into something and it's called tomorrow.

Time moves slower the faster you travel away from large quantities of matter.
 
2013-09-14 10:24:29 AM
Some people in this thread sound confused. He wasn't presenting a scientific paper where he is announcing this discovery. He was giving a lecture on science to non-scientists. He is taking on the the important job of keeping the world from falling into ignorance. He is fighting the good fight. The role that this man also took on.

i88.photobucket.com
 
2013-09-14 10:33:06 AM

Levian: Honestly, this is something that any respectable first year college physics student would be able to tell you.  The reason backwards time travel isn't possible is because it would require travelling faster than the speed of light, which remains theoretically impossible.  An infinite amount of energy is required to accelerate an object to the speed of light, making it impossible to reach, let alone go any faster.


There is no proof that breaking the light speed barrier would turn your clock backwards.  What it would do is put you over a threshold where it would be impossible to go slower than the speed of light.

Furthermore, Richard Feynam demonstrated that going "backwards" in time is indistinguishable from going "forward" in time.  Entropy happens either way.
 
2013-09-14 12:09:30 PM

thanksagainandagain: [images4.wikia.nocookie.net image 294x301]


i.imgur.com

"Hey, this is like that time ten years ago when a naked guy stole my pants."
 
2013-09-14 12:19:24 PM
Myria:

How do we know that time travel is impossible?  We have never seen any time travelers!

I've seen one
 
2013-09-14 01:00:48 PM

President Merkin Muffley: This may blow your mind, but we're traveling to the future RIGHT NOW


www.topcoder.com
 
2013-09-14 02:48:59 PM

lasercannon: Obligatory
[www.nosnivelling.com image 660x728]


Too bad 95% of that will be useless to you unless you get help, in which case you'll be branded a witch.

And a lot of it is silly.  It doesn't tell you HOW to build a radio, it vaguely mentions it.
 
2013-09-14 03:17:13 PM
Wasn't this the plot of flight of the navigator?
 
2013-09-14 03:25:51 PM

jayhawk88:  is NOT coming back in.


Much to reverendjim's eternal disappointment.
 
2013-09-14 04:15:39 PM

gnosis301: How far would you get before turning into goo?


You wouldn't turn in to goo.  That whole thing from the cheesy film Time Cop even disproves itself:  your future self can't exist in the same space/time as your current self.  Fortunatley irrespective of the amount of time difference between the two the matter will be vibrating at the exact same frequency (25Hz if I remember?) and thus you won't be able to step inside each other.  As you can't do that you can't be in the exact same space/time as your future/past self.

So yes you could give yourself a BJ.   It would however be gay.  Rohypnoling your past self and buggering them all night though?  Totally straight.
 
2013-09-14 04:16:51 PM

Dedmon: So is this guy claiming that the faster you go forward in space, the faster you go in time? So, all you have to do is repeat what has been known sense Einstein's time, and you're considered worthy of writing about?


There's no such thing as future or past if time is relative. Everything is moving to its own internal clock with regards to everything else. The concept of time-travel only makes sense if time is absolute. For instance, the atomic clocks on board satellites in geosynchronous orbit are moving slower than the ones on Earth due to relativistic speed, and they have to be updated periodically to be kept in sync. Now, when that happens, are the satellites in our past, or are we in their future? The answer is both.

There is no future or past. Things are moving at different velocities of time in relation to everything else.
 
2013-09-14 06:41:04 PM

cman: What if time were a dimension just as valid as length and width and height?

THINK ABOUT IT


It is; what's boggling is the idea of other axes of time.
 
2013-09-14 09:23:51 PM

The All-Powerful Atheismo: lasercannon: Obligatory
[www.nosnivelling.com image 660x728]

Too bad 95% of that will be useless to you unless you get help, in which case you'll be branded a witch.

And a lot of it is silly.  It doesn't tell you HOW to build a radio, it vaguely mentions it.


Would you prefer a 73 oldsmobile, a shotgun and a trunk full of high school textbooks?
 
2013-09-15 04:12:25 AM

lasercannon: The All-Powerful Atheismo: lasercannon: Obligatory
[www.nosnivelling.com image 660x728]

Too bad 95% of that will be useless to you unless you get help, in which case you'll be branded a witch.

And a lot of it is silly.  It doesn't tell you HOW to build a radio, it vaguely mentions it.

Would you prefer a 73 oldsmobile, a shotgun and a trunk full of high school textbooks?


No but I'd prefer a Delta 88 Oldsmobile, a chainsaw, and my trusty boomstick.  Also I don't need the textbooks.  I learned how to make gunpowder from Star Trek TOS.
 
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