Yes, they're using the wavelength aspect of light there.
An electromagnetic waveform can be represented mathematecally as a function of time: s(t) = A * cos(wt + p)
Amplitude (A), or the intensity of light was always used to represent the on/off states.
Wavelength (related to w), or the 'colour' of the light is used in wavelength multiplexing. You just inject multiple signals at different wavelengths and filter them out into the different signals at the receiver.
Phase (p), or the starting position of the wave if you like, you can imagine left or right shifting a sine wave, is another aspect of a wave that can carry information. Phase Shift Keying (PSK) is already used in many radio frequency digital modulation schemes. Not sure how this method could be used to increase bandwidth through modulation though. Probably worth reading the paper.
Note, I've represented a very basic two dimensional wave here. Of course polarisation or the way a 3-D wave is aligned is another aspect that may be used to encode information. For multiplexing, I imaging the idea is to have multiple waves at the same wavelength but with different polarisations. You would then need to be able to filter out particular polarisations at the receiver.
As a side note, the second paragraph of the article says something about not being able to make light go any faster beyond a barrier to increased bandwidth. It in fact has no bearing on it. Even if the on/off effect along kilometres of fibre was instantaneous, you would still have to deal with noise and attenuation in the channel.
I think you are creating a false dichotomy. I acknowledge that to some this is going to make me sound like a giant tosser, but the two are not equivalent.
Human progress, in terms of expanding and giving the species a better standard of living is driven by technological innovation. Kid-raising, family-feeding and social-relationship-maintaining are a part of being human. To say that there is a choice between understanding how technical things work, and being a good member of society is simply not true.
For thousands of years people have known how to raise kids, be part of a society and feed their families. In another thousand years people will still have that basic part of being human under control. Where we are in a thousand years in terms of life-spans, standards of living, number of people able to live happily, well that depends on the people wanting to know how things work and wanting to do things better.
They are not suing because Android is Java. They are suing because they claim that it infringes upon some patents that they hold. They could have used the syntax of Eiffel for Android and that would not affect Oracle's claims one bit.
What a load of BS. Have you even used the latest version of Google Documents and looked at the real-time collaboration? Basically everything that was available in Etherpad is available there.
I disagree with your assertion that the effort has been a waste of time. A lot of the ideas and methods that were developed for Wave are already being used in some of their other products. Have you had a look at the real-time collaboration features in Google Documents lately? From TFA:
We don’t plan to continue developing Wave as a standalone product, but we will maintain the site at least through the end of the year and extend the technology for use in other Google projects.
I have a feeling we will start seeing more and more Wave-like features making there way into other Google products. Also, a lot of the code is already open source.
When I read the summary I thought what's the big deal if the 1 TB of data only contained two records 0.5 TB each. Then I saw that kdawson wrote the summary. So I browsed over here and saw that the impressive thing is that they sorted 1,000,000,000,000 records of 100 bytes each with 10 byte keys.
Android is not the competition. Nokia could deliver some fantastic Android based handsets. I'm sure Google would cut them in on App Market sales, and ad revenue.
They do not have to distribute the work's System Libraries, or general-purpose tools. i.e. The compiler, system header files and libraries. For most embedded environments this means you still can't build even with the Makefiles and build scripts. They are probably using proprietary compilers and IDEs.
Okay for some slash-support now. I have added a certain editor to my excludes list in my index settings, however, there is no way for my RSS reader to know this as it just uses the standard slashdot feed. My question is, how do I get an RSS feed that excludes certain editors?
No. It will be down moderated because it is a moronic post, and it uses way to many words to convey the BS.
The Yellowstone Caldera will take many years, probably hundreds of smaller eruptions before any major super-volcanic eruption. Your statement that it is 40 thousand years overdue is not based on any reasoning and no geologist would agree with you.
Global warming is real. It is caused by humans contributing shit-loads of Carbon to the atmosphere. It will have consequences on the human race. There is probably a tipping point where the changes in the planet will be dramatic.
p.s. It serves me in no way to be taking this position other than the fact that I kind of give a shit about the future of our species.
You don't serve your boss. You serve the same stakeholders that your boss serves. It would be both morally and legally wrong to, for example, collude with your boss to defraud the company. The line is not as clear as GP makes out.
What I find interesting is that this opens up at least the possibility of that old sci-fi standby (really old - I haven't seen a reference to it in modern sci-fi) of polywater.
How?
Polywater is supposed to be one of those "unobtaniums", theoretically impossible - but then again, bees have been "proven" not to be able to fly.
Do you even know the story about Polywater. It's not a theoretical anything. The idea came about because of shoddy experiments that introduced contamination. It really does boggle the mind how stupid ideas can persist in peoples minds and continue to be regurgitated.
Slashdot Mirror
Yes, they're using the wavelength aspect of light there.
An electromagnetic waveform can be represented mathematecally as a function of time: s(t) = A * cos(wt + p)
Amplitude (A), or the intensity of light was always used to represent the on/off states.
Wavelength (related to w), or the 'colour' of the light is used in wavelength multiplexing. You just inject multiple signals at different wavelengths and filter them out into the different signals at the receiver.
Phase (p), or the starting position of the wave if you like, you can imagine left or right shifting a sine wave, is another aspect of a wave that can carry information. Phase Shift Keying (PSK) is already used in many radio frequency digital modulation schemes. Not sure how this method could be used to increase bandwidth through modulation though. Probably worth reading the paper.
Note, I've represented a very basic two dimensional wave here. Of course polarisation or the way a 3-D wave is aligned is another aspect that may be used to encode information. For multiplexing, I imaging the idea is to have multiple waves at the same wavelength but with different polarisations. You would then need to be able to filter out particular polarisations at the receiver.
As a side note, the second paragraph of the article says something about not being able to make light go any faster beyond a barrier to increased bandwidth. It in fact has no bearing on it. Even if the on/off effect along kilometres of fibre was instantaneous, you would still have to deal with noise and attenuation in the channel.
I think you are creating a false dichotomy. I acknowledge that to some this is going to make me sound like a giant tosser, but the two are not equivalent.
Human progress, in terms of expanding and giving the species a better standard of living is driven by technological innovation. Kid-raising, family-feeding and social-relationship-maintaining are a part of being human. To say that there is a choice between understanding how technical things work, and being a good member of society is simply not true.
For thousands of years people have known how to raise kids, be part of a society and feed their families. In another thousand years people will still have that basic part of being human under control. Where we are in a thousand years in terms of life-spans, standards of living, number of people able to live happily, well that depends on the people wanting to know how things work and wanting to do things better.
They are not suing because Android is Java. They are suing because they claim that it infringes upon some patents that they hold. They could have used the syntax of Eiffel for Android and that would not affect Oracle's claims one bit.
What a load of BS. Have you even used the latest version of Google Documents and looked at the real-time collaboration? Basically everything that was available in Etherpad is available there.
See it in action. Go to 0:45.
I disagree with your assertion that the effort has been a waste of time. A lot of the ideas and methods that were developed for Wave are already being used in some of their other products. Have you had a look at the real-time collaboration features in Google Documents lately? From TFA:
We don’t plan to continue developing Wave as a standalone product, but we will maintain the site at least through the end of the year and extend the technology for use in other Google projects.
I have a feeling we will start seeing more and more Wave-like features making there way into other Google products. Also, a lot of the code is already open source.
p.s. I need to get up to speed with Google App Engine, so would love a shot at porting your application to that. Let me know if you're interested.
So he blogged that he heard that AT&T might sue him to stop the talk, AT&T deny the rumour, it makes headlines.
When I read the summary I thought what's the big deal if the 1 TB of data only contained two records 0.5 TB each. Then I saw that kdawson wrote the summary. So I browsed over here and saw that the impressive thing is that they sorted 1,000,000,000,000 records of 100 bytes each with 10 byte keys.
Two words: Limited Liability. The company is liable not the owners. GP and P are both moot.
What is the Australian public going to do with the data?
Any idea how to do this for the Slashdot RSS feed?
Android is not the competition. Nokia could deliver some fantastic Android based handsets. I'm sure Google would cut them in on App Market sales, and ad revenue.
If you want to really push the boundaries you will need to incite others to hate her too.
Slashdot. Non-news for nerds. Stuff that it turns doesn't matter.
They do not have to distribute the work's System Libraries, or general-purpose tools. i.e. The compiler, system header files and libraries. For most embedded environments this means you still can't build even with the Makefiles and build scripts. They are probably using proprietary compilers and IDEs.
Okay for some slash-support now. I have added a certain editor to my excludes list in my index settings, however, there is no way for my RSS reader to know this as it just uses the standard slashdot feed. My question is, how do I get an RSS feed that excludes certain editors?
No. It will be down moderated because it is a moronic post, and it uses way to many words to convey the BS.
The Yellowstone Caldera will take many years, probably hundreds of smaller eruptions before any major super-volcanic eruption. Your statement that it is 40 thousand years overdue is not based on any reasoning and no geologist would agree with you.
Global warming is real. It is caused by humans contributing shit-loads of Carbon to the atmosphere. It will have consequences on the human race. There is probably a tipping point where the changes in the planet will be dramatic.
p.s. It serves me in no way to be taking this position other than the fact that I kind of give a shit about the future of our species.
You don't serve your boss. You serve the same stakeholders that your boss serves. It would be both morally and legally wrong to, for example, collude with your boss to defraud the company. The line is not as clear as GP makes out.
It wasn't his boss. He was fired.
Re-image? Yeah, I'm sure the NYSE "re-images" their clusters once a month because you know Windows always feels faster after a fresh re-image.
You must be smart. I think you're on the wrong news aggregator.
Maybe you should buy a used ToughBook laptop. In my experience they are worth every penny if you intend to put them through their paces.
I think you are confusing skills acquired with biological adaptations.
I wish I could write codecs. I’t word night shifts to kick H.264s ass. ^^
AFAIK you wouldn't be able to do that without violating some H.264 patent.
What I find interesting is that this opens up at least the possibility of that old sci-fi standby (really old - I haven't seen a reference to it in modern sci-fi) of polywater.
How?
Polywater is supposed to be one of those "unobtaniums", theoretically impossible - but then again, bees have been "proven" not to be able to fly.
Do you even know the story about Polywater. It's not a theoretical anything. The idea came about because of shoddy experiments that introduced contamination. It really does boggle the mind how stupid ideas can persist in peoples minds and continue to be regurgitated.
Read about it.