And the quantum world keeps on getting stranger and stranger
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Steve_Harris wrote:
Re Dark Energy there was an article in New Scientist not so long ago that suggested that the clumpy distribution of matter in the universe could be affecting photons as they pass through it in such a way as to produce an effect which looks like "Dark Energy" to our models, which utilise a uniform matter distribution, and that Dark Energy may therefore not be required to model the universe. I suspect that Dark matter will also turn out to be no more than a limitation in our models and not some exotic form of matter.
If I remember correctly the "Cosmic Illusion" argument against Dark Energy doesn't really stand up when considering the density differences on volumes large enough (millions of light years I think) to effect universal expansion; I think someone did a survey using gravitational lensing to measure the density. Also, isn't the density difference model pretty immature/ over simplified at this point? Still it is all very fascinating to me.
Sovereign ingredient for a happy marriage: Pay cash or do without. Interest charges not only eat up a household budget; awareness of debt eats up domestic felicity. --Lazarus Long
Chris Austin wrote:
density
I thought that the "uniform over a large enough volume" approach was what they had found didn't work?
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I initially went into Bio-Engineering even though I loved my Physics classes more than anything in high school. I realized in my first year that I preferred Physics and switched majors by my third semester.
Pete O'Hanlon wrote:
It's only been in the last 10 years that I really started to get into quantum theory.
:) I've made the same switch to Dark Energy and Dark Matter... absolutely fascinating.
Sovereign ingredient for a happy marriage: Pay cash or do without. Interest charges not only eat up a household budget; awareness of debt eats up domestic felicity. --Lazarus Long
The Bible says: "AS ABOVE AND SO BELOW." Anything is energy first before it manifested in the material plane.
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Charming :rim-shot:.
Software Zen:
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Pete O'Hanlon wrote:
science geeks
What other kind are there? :((
Brady Kelly wrote:
Pete O'Hanlon wrote: science geeks What other kind are there? [Cry]
science dorks, gun geeks, etc, etc, etc.
Today's lesson is brought to you by the word "niggardly". Remember kids, don't attribute to racism what can be explained by Scandinavian language roots. -- Robert Royall
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Interesting. When I was at college, I moved towards mathematics even though I was more interested in physics. It's my eternal regret that I didn't pursue my initial aims which was to study to become an astrophysicist. It's only been in the last 10 years that I really started to get into quantum theory.
Deja View - the feeling that you've seen this post before.
Personally I like silly string.:cool:
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Personally I like silly string (or the theory of it).
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Marc Clifton wrote:
predestination
I knew you were going to say that.
"A Journey of a Thousand Rest Stops Begins with a Single Movement"
Roger Wright wrote:
Marc Clifton wrote: predestination I knew you were going to say that.
I thought he will said Procastination
Edgar Prieto Software Engineer
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Just today I read an article in the CodeProject that states that they are progressing with the "Warp Drive". Mathematically speaking they will bend space by expanding it behind the space craft and contracting it in front of the space craft causing a space wave, like surfing. This will get the ship to the opposite end of the universe very quickly, at multiple times the speed of like: but the actual speed of the space craft will be stationary, thus not violating Einstein's theory of relativity. This is a result of further exploration of the string theory which a few prominent scientists have been working on. It is all mathematically feasible, however the energy required amounts to the energy of the planet of Pluto when totally changed into energy, ~10^45 Joules, which they say we wont be able to do for another few melenium. That's the part I hate because I won't be around to see it and go with them. Also, on a much smaller scale such as what you have been talking about, they have actually teleported a photon across town in Austria. The theory of entanglement is involved with this process. Once two photons have existed simultaneaously for a femtosecond they are forever associated and the one knows what the other "feels" or "does". This is somehow related with what you have been talking about. A good book on the subject is "Teleportation The Impossible Leap" by David Darling (Wiley Books). The CodeProjecy is obtainable at www.codeproject.com Mel :)
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Indeed, but it's cool that they've actually been conducting experiments on this.
Deja View - the feeling that you've seen this post before.
The experiments have been conducted for years as well. I think they just do more impressive experiments as time passes, rather as they do for relativity.
Kevin
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Quantum entanglement is fascinating, along with things like dark matter and dark energy. Quantum physics in general is quite interesting coupled with my interest in neurology, AI, and even more esoteric things like chance, fate, predestination, and so forth. Marc
Marc Clifton wrote:
Quantum entanglement is fascinating
As Richard Feynman said: "no-one understands quantum mechanics." (This was in response to the myth that no-one understands relativity.)
Kevin
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What i like about entanglement is that nearly everything is entangled with everything, resulting in a big "function" - the reality...