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Faster than the speed of light

Old Sep 24, 2011 | 07:06 PM
  #61  
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Originally Posted by warrenm2
"We don't serve faster than light particles in here" said the bartender.
A neutrino walks into a bar.
Very good.
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Old Sep 24, 2011 | 07:18 PM
  #62  
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Originally Posted by Trout
Carl,

the force required is mass x acceleration and as light particles have a mass of near zero, the force required is very small.

Once a particle is moving in a vacuum it will travel forever - until it hits the edge of the universe.
no such thing as a vacumn

a partial depression over universal distances is a s good as you can get

space is not actually empty
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Old Sep 24, 2011 | 07:31 PM
  #63  
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Originally Posted by jef
no such thing as a vacumn

What's my Dyson then?
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Old Sep 24, 2011 | 07:36 PM
  #64  
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a hoover lol

not really its a cyclone style floor cleaner lol
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Old Sep 25, 2011 | 12:01 PM
  #65  
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Originally Posted by jef
no such thing as a vacumn

a partial depression over universal distances is a s good as you can get

space is not actually empty
Apart from stars and planets etc. etc. what exists in between all those items, can't be air as we know it surely.

Les
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Old Sep 25, 2011 | 12:02 PM
  #66  
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Originally Posted by warrenm2
"We don't serve faster than light particles in here" said the bartender.
A neutrino walks into a bar.
Love it !
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Old Sep 25, 2011 | 12:18 PM
  #67  
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Space is actually linear
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Old Sep 25, 2011 | 12:24 PM
  #68  
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Les

"Space" is filled with virtual particles that pop in and out of exitance as they "borrow" energy.....It's impossible to create "nothing" in the quantum world

Shaun
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Old Sep 25, 2011 | 05:25 PM
  #69  
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In quantum physics, no matter exists until you actually observe it; atoms only appear if you begin to observe and measure it.
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Old Sep 25, 2011 | 05:47 PM
  #70  
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Originally Posted by Leslie
Apart from stars and planets etc. etc. what exists in between all those items, can't be air as we know it surely.

Les
a small amount of various atoms, spread unevenly throughout.

no where near dense enough to comprise a complex gas like air, plus anti-mater, and the pop in, pop out of existance things i dont know anything about

but its not a complete vacum

basically all known matter, along with start debris, gas clouds,star nursies/nebulas ect

Last edited by jef; Sep 25, 2011 at 05:51 PM.
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Old Sep 25, 2011 | 05:51 PM
  #71  
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er I think we get the fact that the hard vacuum of space does contain some particles thanks.
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Old Sep 25, 2011 | 05:54 PM
  #72  
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Originally Posted by jonc
In quantum physics, no matter exists until you actually observe it; atoms only appear if you begin to observe and measure it.
How does the self become aware of its existence when it has only itself to observe itself?
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Old Sep 25, 2011 | 05:55 PM
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well thats good tony becuase i think people think a vacum is actually real in the true sense of the word.

its like people who say theres a vacum in cylinder on the "suck" stroke of an IC engine, the best anyone can ever hope to acheive is a partial depression.
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Old Sep 25, 2011 | 06:43 PM
  #74  
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it does exist but in a state of quantum flux

Originally Posted by jonc
In quantum physics, no matter exists until you actually observe it; atoms only appear if you begin to observe and measure it.
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Old Sep 26, 2011 | 09:50 AM
  #75  
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So they have found a new particle that travels faster than light now?

We certainly didn't see that one coming.
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Old Sep 26, 2011 | 09:54 AM
  #76  
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Originally Posted by warrenm2
So they have found a new particle that travels faster than light now?

We certainly didn't see that one coming.


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Old Sep 26, 2011 | 11:44 AM
  #77  
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Originally Posted by Leslie
Apart from stars and planets etc. etc. what exists in between all those items, can't be air as we know it surely.

Les
Don't for get the invisible, dimensionless, undetectable........DARK MATTER. this is what alledgedly makes up 83% of the mass of the universe.
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Old Sep 26, 2011 | 12:02 PM
  #78  
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Originally Posted by jef
no such thing as a vacumn

a partial depression over universal distances is a s good as you can get

space is not actually empty
I thought a reduction of ambient pressure in a space can be defined as a vacuum. Doesn't have to be complete.

Les
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Old Sep 26, 2011 | 12:06 PM
  #79  
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Originally Posted by bigsinky
Don't for get the invisible, dimensionless, undetectable........DARK MATTER. this is what alledgedly makes up 83% of the mass of the universe.
Yes...allegedly!

Les
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Old Sep 26, 2011 | 02:58 PM
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Actually the latest thinking is that the universe is made of 70% dark energy, 25% dark matter and 5% normal matter. Its believed that dark energy is opposite to gravity pushing everything apart expanding the universe.
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Old Sep 27, 2011 | 12:36 PM
  #81  
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Originally Posted by jonc
Actually the latest thinking is that the universe is made of 70% dark energy, 25% dark matter and 5% normal matter. Its believed that dark energy is opposite to gravity pushing everything apart expanding the universe.
All these theories are a bit like PC Plonkers trying to think of something else to moan about!

Les
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Old Sep 27, 2011 | 12:40 PM
  #82  
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im not sure why anything owuld have a 'speed limit' i would have though its all to do with energy levels.

Its all way out of my comprehention.
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Old Sep 27, 2011 | 12:45 PM
  #83  
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I tend to agree.

Les
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Old Nov 18, 2011 | 07:47 PM
  #84  
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It looks like Professor Brian *** is edging closer to eating his boxer shorts;

http://www.bbc.co.uk/news/science-environment-15791236
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Old Nov 18, 2011 | 07:50 PM
  #85  
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More accurate test - same result.

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Old Nov 18, 2011 | 07:53 PM
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Order placed

TX.
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Old Nov 18, 2011 | 09:11 PM
  #87  
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Originally Posted by Leslie
Seems to me that if you have a source which is producing light in a particular direction, if you move the source in that same direction then the light waves or particles however you wish to regard them are travelling at the speed of light plus the speed at which the source is travelling, ie faster then the speed of light!

It is all "relative" of course. Can't see the problem...Seemples!

Les
That's what Michelson and Morley thought.
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Old Nov 18, 2011 | 10:25 PM
  #88  
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Doppler
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Old Nov 18, 2011 | 11:46 PM
  #89  
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Will it really turn Physics on its head though, its not twice as fast, its a tiny bit, surely it would just be an adjustment and a margin rather than a rewrite ?
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Old Nov 19, 2011 | 12:59 PM
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Originally Posted by tony de wonderful
I think you get time dilation to compensate...or some bollox.
Thanks for yet another exciting explanatory phrase.

But can you explain what you mean by it?

Les
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