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Ted Pugliese
Byrne Robotics Member
Joined: 05 December 2005
Location: United States
Posts: 7985
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| Posted: 29 June 2011 at 6:39pm | IP Logged | 1
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By comparing it to electromagnetism I only mean to suggest that it is
quantum in nature. In a universe full of bosons, so to speak, it seems
odd that this force, 1 of 4, would work so differently than the others.But then again, we can't find the graviton or haven't yet, so you never
know. Maybe one day we will. How cool would that be?!?
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Michael Todd
Byrne Robotics Member
Joined: 07 September 2009
Location: United States
Posts: 4115
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| Posted: 30 June 2011 at 2:05am | IP Logged | 2
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Religion wins, everybody knows that there is no such thing as science.
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John Byrne
Grumpy Old Guy
Joined: 11 May 2005
Posts: 133710
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| Posted: 30 June 2011 at 3:13am | IP Logged | 3
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Based on the number of people who have any real knowledge of science, versus the number of people who consider themselves "religious", yes, I would say religion "wins" -- and humanity loses.
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Simon Bucher-Jones
Byrne Robotics Member
Joined: 04 May 2004
Location: United Kingdom
Posts: 835
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| Posted: 30 June 2011 at 3:32am | IP Logged | 4
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Bent spacetime is only a metaphor, we think things fall into bends in a bent rubber sheet because of gravity, so as an explanation for gravity its only a 'thought picture'. It used to be possible to think of the 'past' as having gravity, with the whole hypersurface universe poised to fall back 'towards' the big bang in a grand collapse. That would have given an 'event mass' "below" the surface of the universe, with 'current' mass pulled towards 'past' mass (functionally equivalent to lightspeed gravity waves), but the expanding universe is speeding up. Some hypothesis dark gravity or a repulsive force: I just fear we're now "falling" towards another universal brane in hyperspace. Simon BJ
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John Byrne
Grumpy Old Guy
Joined: 11 May 2005
Posts: 133710
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| Posted: 30 June 2011 at 3:35am | IP Logged | 5
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Bent spacetime is only a metaphor…•• Which is why I put quotation marks around "bending".
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Lars Johansson
Byrne Robotics Member
Joined: 04 June 2004
Location: Sweden
Posts: 6113
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| Posted: 30 June 2011 at 4:23am | IP Logged | 6
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I rather believe that Einstein meant that time has a direction in space as well.If I'm not on a planet and step out of the window I will be floating oustide of the winodw becuse my future was there and my past was inside. In fact all my possible futures are the same in all directions depending on where I want to go. If I now, being on the second floor on the Earth, if step out I will fall down because my possible futures are distorted and are directed down towards the Earth beacuse of the distortion in timespace.
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John Byrne
Grumpy Old Guy
Joined: 11 May 2005
Posts: 133710
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| Posted: 30 June 2011 at 5:28am | IP Logged | 7
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Huh?
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Petter Myhr Ness
Byrne Robotics Member
Joined: 02 July 2009
Location: Norway
Posts: 3945
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| Posted: 30 June 2011 at 6:00am | IP Logged | 8
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If that name rings no bells, don't worry about it.
--
Funnily enough, it didn't until I read some articles by Max Tegmark a few months back. Now the name seem to pop up everywhere - including this forum!
I may just have to check out the Peter Byrne book you mention.
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Lars Johansson
Byrne Robotics Member
Joined: 04 June 2004
Location: Sweden
Posts: 6113
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| Posted: 30 June 2011 at 6:41am | IP Logged | 9
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Huh?
********
These are a few drawings that describe the way I believe it is. The first picture shows the way it is without gravity. A guy in space turns on a light (yellow) and the light spreads at the speed of light evenly as a sphere coming from that light in space. We can measure how long time the lights were turned on depending on the size of the sphere. Let's cal these arrows the direction of time. All of them together they equal 0 in this case.
Picture 2. A huge planet (light green) comes along. It is so huge that it bends bends space-time. So the future for the photons is not evenly spread in space any more, all the arrows are not 0, but rather directed against he planet. The guy, who turned on the light, his future is now more directed towards the planet just like the light's future and he tends to end up there if he doesn't hold on to something.
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Aaron Most
Byrne Robotics Member
Joined: 03 September 2008
Location: United States
Posts: 121
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| Posted: 30 June 2011 at 8:38am | IP Logged | 10
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Anyone else craving eggs, sunny-side up?
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John Bodin
Byrne Robotics Member
Purveyor of Rare Items
Joined: 16 April 2004
Location: United States
Posts: 3911
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| Posted: 30 June 2011 at 8:46am | IP Logged | 11
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Aaron Most wrote:
| Anyone else craving eggs, sunny-side up? |
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YES! Thought it was just me! :-D
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Mike Norris
Byrne Robotics Member
Joined: 16 April 2004
Location: United States
Posts: 4274
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| Posted: 30 June 2011 at 10:20am | IP Logged | 12
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Thats not an albino olive?
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Topic Closed)
