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Old 03-20-2012, 01:42 AM   #1081
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Vacuum energy.
Is the the modern term for Ether?
Vacuum energy is basically the ground state energy, which is non-zero. It's real and has been proven/observed.

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I've been toying with idea for a few days; let me know what you think (Mash, maybe you know something I don't that would kill this idea..?):

  1. The universe is expanding
  2. As it expands, the volume of physical space "inside" the universe is increasing
  3. Vacuum energy is all but proven
  4. As physical space expands, so does the total vacuum energy, but energy cannot be created...
This is one of the problems with the expansion of the universe (specifically the acceleration of the universe) expressed in a slightly different way than what is commonly described. There has to be some energy driving the acceleration of the universe, otherwise the universe would have to decelerate. This is what's commonly referred to as Dark Energy. Some early ideas said that the vacuum energy was in fact dark energy...but it turns out that vacuum energy is over one hundred orders of magnitude too small to account for this...that's more than 10100.

Anyways, what you're saying is just another formulation of it. There has to be some energy adding to the vacuum energy in the universe, or equivalently there has to be some energy causing the universe to expand. Of course this is one of the greatest unanswered questions in physics today.
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Old 03-20-2012, 07:39 AM   #1082
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This is one of the problems with the expansion of the universe (specifically the acceleration of the universe) expressed in a slightly different way than what is commonly described. There has to be some energy driving the acceleration of the universe, otherwise the universe would have to decelerate. This is what's commonly referred to as Dark Energy. Some early ideas said that the vacuum energy was in fact dark energy...but it turns out that vacuum energy is over one hundred orders of magnitude too small to account for this...that's more than 10100.
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Old 03-20-2012, 09:00 AM   #1083
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Einstein's papers are posted online, or are going to be; I'm not quite sure because the site doesn't load for me.
http://www.usatoday.com/tech/science...terstitialskip
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Old 03-20-2012, 09:10 AM   #1084
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Cowmoo, heres the link from the article.

http://alberteinstein.info/
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Old 03-20-2012, 09:15 AM   #1085
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Cowmoo, heres the link from the article.

http://alberteinstein.info/
Beat me to it
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Old 03-20-2012, 09:40 AM   #1086
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It wasn't working for me, wouldn't load.
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Old 03-21-2012, 05:14 PM   #1087
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Vacuum energy is basically the ground state energy, which is non-zero. It's real and has been proven/observed.
In other words... one just needs to zero or reset the instruments.

I think my comment went over your head.
Did you google Ether?
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Old 03-21-2012, 05:26 PM   #1088
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In other words... one just needs to zero or reset the instruments.

I think my comment went over your head.
Did you google Ether?
There most definitely is a vacuum /ground state energy, if that's what you're trying to argue against.

http://en.wikipedia.org/wiki/Casimir_effect
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Old 03-21-2012, 07:32 PM   #1089
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In other words... one just needs to zero or reset the instruments.

I think my comment went over your head.
Did you google Ether?
It's funny because Mash has a PhD in physics.
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Old 03-22-2012, 01:19 PM   #1090
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In other words... one just needs to zero or reset the instruments.

I think my comment went over your head.
Did you google Ether?
lol I know what ether is, this isn't ether

EDIT: http://en.wikipedia.org/wiki/Zero-point_energy just read the introduction
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Old 03-23-2012, 01:37 PM   #1091
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200,000 galaxies found in a dark patch of the sky.
http://blogs.discovermagazine.com/ba...full-galaxies/
Quote:
An ultradeep image that's *full* galaxies!

What happens when you take a monster 4.1 meter telescope in the southern hemisphere and point it at the same patch of sky for 55 hours?

This. Oh my, this...
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Old 03-23-2012, 05:51 PM   #1092
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I wonder how many species of intelligent life are in those galaxies looking back at us wondering if there is life in our solar system ?
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Old 03-23-2012, 11:23 PM   #1093
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I wonder how many species of intelligent life are in those galaxies looking back at us wondering if there is life in our solar system ?
It's one thing to wonder about the probability of life on another planet, but what boggles my mind even more is the probability of intelligent life on another planet at this time. I mean, our entire existence is just a blink in the grand scheme of things and our sun will supernova (or w/e happens to suns) destroying us (if we don't develop the technology to find another planet). The light we are seeing from other galaxies is from thousands or millions of years ago, so it's probably completely different now anyway. Gah!
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Old 03-25-2012, 01:56 PM   #1094
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Speaking of drunken science, it looks like red wine really helps with that whole superconductivity thing.

http://www.technologyreview.com/blog...7664/?p1=blogs
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Old 03-25-2012, 02:03 PM   #1095
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It's one thing to wonder about the probability of life on another planet, but what boggles my mind even more is the probability of intelligent life on another planet at this time. I mean, our entire existence is just a blink in the grand scheme of things and our sun will supernova (or w/e happens to suns) destroying us (if we don't develop the technology to find another planet). The light we are seeing from other galaxies is from thousands or millions of years ago, so it's probably completely different now anyway. Gah!
It's literally mind-numbing to think that all of the advances and everything we've ever "achieved" on earth could have been done and achieved elsewhere, many times over. Or perhaps those other intelligent races were more violent than us and destroyed each other before advancing their society. Or maybe those races were ultra-rational, un-emotional beings. Think of how life would be if we evolved with the capacity for rational thought and language but without capacity for emotion. Would that have promoted or stunted scientific advancement (since we can argue that most of our greatest minds have been a bit crazy).

Too much thinking for a sunny Sunday afternoon.
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Old 03-25-2012, 05:36 PM   #1096
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It's one thing to wonder about the probability of life on another planet, but what boggles my mind even more is the probability of intelligent life on another planet at this time. I mean, our entire existence is just a blink in the grand scheme of things and our sun will supernova (or w/e happens to suns) destroying us (if we don't develop the technology to find another planet). The light we are seeing from other galaxies is from thousands or millions of years ago, so it's probably completely different now anyway. Gah!
Exactly. Which is why I don't think that the history of our modern civilization began with the Bronze age or ancient Greece etc...

There are billions of suns in each galaxy and each star has dozens of planets and even moons that sustain life. They may not be two legged mammals that walk upright. It might be fungus growing on tree bark that has consciousness and an IQ at the level of Socrates and Plato. There will be life on those planets that our imagination cannot comprehend.

And they could be wondering right now, if there is life on other planets and they could be looking for us...hopefully they are not looking for their next meal.



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It's literally mind-numbing to think that all of the advances and everything we've ever "achieved" on earth could have been done and achieved elsewhere, many times over.

It is interesting to think that ancient Rome and Greece had indoor plumbing with sanitation and fresh water supplies and 2k years later that some countries have still failed to reach that level. After the fall of Rome, it seems that society went backwards and did not move forward again for another thousand years.

Imagine if it never went backwards and the telegraph and the train were invented in the 800's instead of the 1800's along with the camera. Think about how far we have come in 150 years and where we would be now if those developments had taken place earlier. A lot of people try to imagine what life would be like, living in the past. I want to go 100, 200 or 500 years in the future.


Or perhaps those other intelligent races were more violent than us and destroyed each other before advancing their society. Or maybe those races were ultra-rational, un-emotional beings. Think of how life would be if we evolved with the capacity for rational thought and language but without capacity for emotion. Would that have promoted or stunted scientific advancement (since we can argue that most of our greatest minds have been a bit crazy).
I think an advanced society will have gotten past the concept of war and inequality but they would have to be technically advanced to do this. I hope no one loses their sense of humor a long the way though.
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Old 03-26-2012, 08:43 AM   #1097
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We're made of waves
http://www.physorg.com/news/2012-03-...tum-movie.html
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The quantum physics of massive particles has intrigued physicists for more than 80 years, since it predicts that even complex particles can exhibit wave-like behaviour - in conflict with our everyday ideas of what is real or local. An international team of scientists now succeeded in shooting a movie which shows the build-up of a matter-wave interference pattern from single dye molecules which is so large (up to 0.1 mm) that you can easily see it with a camera.


I'm trying to figure out what he was teaching, but don't recognize much outside of E=mc2
edit: Apparently it's from a movie and they were discussing the uncertainty principle
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Old 03-26-2012, 10:27 AM   #1098
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We're made of waves
http://www.physorg.com/news/2012-03-...tum-movie.html




I'm trying to figure out what he was teaching, but don't recognize much outside of E=mc2
edit: Apparently it's from a movie and they were discussing the uncertainty principle
In some ways this seems very similar to the string theory which says everything is made of strings unseen to the human eye. I seen somewhere where they were trying to use these to say that time travel is possible or we are capable of stopping time.

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Old 03-26-2012, 10:30 AM   #1099
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edit: Apparently it's from a movie and they were discussing the uncertainty principle
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Old 03-26-2012, 10:36 AM   #1100
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I'm trying to figure out what he was teaching, but don't recognize much outside of E=mc2
edit: Apparently it's from a movie and they were discussing the uncertainty principle

I came out with either 2 or 288...
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