Wait, but, if it reflected almost 100% of light, wouldn't it just be black?GC_PaNzerFIN wrote:
You CAN'T guess the advancement of science. Who would have known Einstein is going to invent E=MC^2 for example? All happens in time. I am sure sooner or later someone figures out a key ideal of how things work in quantum level or totally put science upside down with new findings.
Its shortsighted to make any statements how the advancement is going to stop. Especially without any explanation why its going to be that way. Science is taking huge leaps right now, in fact a group of scientists actually managed to make object mostly invisible (reflects near 100% of the light), granted, it was super complicated and they could do it only to certain sized and shaped object.
But that i a good example how science can one day figure out things you'd not have even dreamed of some time ago.
no it blends to the background.Finray wrote:
Wait, but, if it reflected almost 100% of light, wouldn't it just be black?GC_PaNzerFIN wrote:
You CAN'T guess the advancement of science. Who would have known Einstein is going to invent E=MC^2 for example? All happens in time. I am sure sooner or later someone figures out a key ideal of how things work in quantum level or totally put science upside down with new findings.
Its shortsighted to make any statements how the advancement is going to stop. Especially without any explanation why its going to be that way. Science is taking huge leaps right now, in fact a group of scientists actually managed to make object mostly invisible (reflects near 100% of the light), granted, it was super complicated and they could do it only to certain sized and shaped object.
But that i a good example how science can one day figure out things you'd not have even dreamed of some time ago.
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Black if it absorbed all light.Finray wrote:
Wait, but, if it reflected almost 100% of light, wouldn't it just be black?
Right, and white if it reflected all.Ilocano wrote:
Black if it absorbed all light.Finray wrote:
Wait, but, if it reflected almost 100% of light, wouldn't it just be black?
A rough example from movie Predator.
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That article makes no sense.
You can always compute faster, simply by having more. If one core can process (note: small numbers for simplicity's sake) 100 calculations per second, then two cores can process 200 calculations per second (in a perfect world, of course).
I don't see how there can be a limit.
You can always compute faster, simply by having more. If one core can process (note: small numbers for simplicity's sake) 100 calculations per second, then two cores can process 200 calculations per second (in a perfect world, of course).
I don't see how there can be a limit.
I don't think he meant reflect, he meant refract. The light is bent around the object so as to appear to make the object invisible.
Last edited by Agent_Dung_Bomb (2009-10-15 14:31:15)
I love the way you guys know better than physicists who have probably spent years studying this equation. here is a link to the whole paper if you wish to make sense of it (4 pages 0f mostly equations)
http://arxiv.org/PS_cache/arxiv/pdf/090 … 3417v2.pdf
http://arxiv.org/PS_cache/arxiv/pdf/090 … 3417v2.pdf
Quote of the year so far "Fifa 11 on the other hand... shiny things for mongos "-mtb0minime
Ppl used to think earth is flat, were they right?smuder201 wrote:
I love the way you guys know better than physicists who have probably spent years studying this equation. here is a link to the whole paper if you wish to make sense of it (4 pages 0f mostly equations)
http://arxiv.org/PS_cache/arxiv/pdf/090 … 3417v2.pdf
I am saying you can't predict what kinda innovations there will be. The next big thing could very well shake the whole basis of our understanding of universe. Theories get proven wrong, fixed to be more accurate as the science advances.
edit: and about reflect / refract, there are multiple theories of possible ways to achieve partial invisibility.
One way is to create mirror-like surface (reflect light in certain way) or refract (bend light that hits the object so it looks transparent). I think there are scientists working on both atm.
Last edited by GC_PaNzerFIN (2009-10-15 14:39:35)
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If nothing else this equation will provoke more study into this area by physicists. Also can you tell me the meaning of the equation or is this just arm chair physics on all our parts?
Quote of the year so far "Fifa 11 on the other hand... shiny things for mongos "-mtb0minime
Advanced quantum physics. I would say thats well over my head. I will probably never see that complex equations in my life.smuder201 wrote:
If nothing else this equation will provoke more study into this area by physicists. Also can you tell me the meaning of the equation or is this just arm chair physics on all our parts?
Last edited by GC_PaNzerFIN (2009-10-15 14:45:40)
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I know they didn't, that's the point. I want to know what it is and how they arrived at that answer. It seems to be bounded by more than the speed of light.Agent_Dung_Bomb wrote:
They didn't say what the actual limit was. They merely said that given that you are limited to the speed of light, they took the smallest possible calculation and the amount of time needed to calculate that it, and came up with some maximum value.
There is a practical difference between speed of calculations and number of calculations that can be performed simultaneously. In most instances the next calculation is dependent on the one before it, so adding infinitely many processors isn't really the same thing as one incredibly fast processor.CrazeD wrote:
You can always compute faster, simply by having more. If one core can process (note: small numbers for simplicity's sake) 100 calculations per second, then two cores can process 200 calculations per second (in a perfect world, of course).
Covered some of that back in college, but with no utilization for over 20 years, I'm brain dead as far as calculations are concerned.smuder201 wrote:
If nothing else this equation will provoke more study into this area by physicists. Also can you tell me the meaning of the equation or is this just arm chair physics on all our parts?
Fuzzy Logic would benefit from an infinitisimal amount of processors.Flaming_Maniac wrote:
There is a practical difference between speed of calculations and number of calculations that can be performed simultaneously. In most instances the next calculation is dependent on the one before it, so adding infinitely many processors isn't really the same thing as one incredibly fast processor.
Last edited by Ilocano (2009-10-15 14:53:15)
From the article, I believe that they are looking at the smallest amount of time that it would take to change with relative certainty a single qubit to a different value. The difference between what they did and what was done before is that while other people assumed that the bit had to be changed completely, they looked at the time it would take for the energy state to approach the new value with the bounds remaining "tight". Then they proved that this pretty damn close approximation is valid with a bunch of quantum physics I'm not going to pretend to understand.
In any case the article didn't do the paper justice. It is worth it to read the first 3/4 of the first page, not really any math involved.
In any case the article didn't do the paper justice. It is worth it to read the first 3/4 of the first page, not really any math involved.
If quantum physics can go only that far, there is nothing stopping a completely new technology from being invented in next 75 years.
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I would never have guessed that BF2's had so many users that know far more then the apparently bat shit guys at Boston University!
Gee golly - I have no degrees but my common sense is far superior to their research!
Gee golly - I have no degrees but my common sense is far superior to their research!
There are a ton of scientists, physicists, and mathematicians who are so set in their ways, that they refuse to acknowledge new trains of thought. Take string theory for example.[HOF]Mercenary wrote:
I would never have guessed that BF2's had so many users that know far more then the apparently bat shit guys at Boston University!
Gee golly - I have no degrees but my common sense is far superior to their research!
they will find a way of making some othe compound do computing like some form of crystal to do all of the processing and stay room temp
I hope you mean that string theorists that have now been making more and more complex yet practically useless theories for 20 years when you say scientists who are set in their ways.Ilocano wrote:
There are a ton of scientists, physicists, and mathematicians who are so set in their ways, that they refuse to acknowledge new trains of thought. Take string theory for example.[HOF]Mercenary wrote:
I would never have guessed that BF2's had so many users that know far more then the apparently bat shit guys at Boston University!
Gee golly - I have no degrees but my common sense is far superior to their research!
No one's arguing their research, only suggesting that our current understanding of physics is not perfect. Which it isn't.[HOF]Mercenary wrote:
I would never have guessed that BF2's had so many users that know far more then the apparently bat shit guys at Boston University!
Gee golly - I have no degrees but my common sense is far superior to their research!
Duotronics Ftw
The US economy is a giant Ponzi scheme. And 'to big to fail' is code speak for 'niahnahniahniahnah 99 percenters'
TBH the only people in this thread who have really pretended to even know what they are talking about, or what the scientists are talking about are those who are defending the article.[HOF]Mercenary wrote:
I would never have guessed that BF2's had so many users that know far more then the apparently bat shit guys at Boston University!
Gee golly - I have no degrees but my common sense is far superior to their research!
Those of us who disagree are not saying we know the answer... just that what we know, and what is "possible" typically goes through dramatic shifts in the span of 75 years.
lol
I think there will be a different way to process information in the future. I mean, sure, 75 years ago we had near nothing in terms of computing technology (on a scale relative to today). However, another part of me says that 75 years is too long, and it could actually be shorter by the time we actually reach that capacity.
But what would I know, Im 17, lol.
I think there will be a different way to process information in the future. I mean, sure, 75 years ago we had near nothing in terms of computing technology (on a scale relative to today). However, another part of me says that 75 years is too long, and it could actually be shorter by the time we actually reach that capacity.
But what would I know, Im 17, lol.
Last edited by KuSTaV (2009-10-15 23:06:23)
noice
Yet you have enough common sense to recognize that 75 years is a very long time in terms of science or, more so, technology. Just don't say lol so much.KuSTaV wrote:
lol
But what would I know, Im 17, lol.