Very nice to see so many people read and comment on the paper.
To the comment of Shadow, that Bittorrent is designed for offloading traffic from web servers. You are quite right, that was the original story, but currently we see both wide-spread illegal copying and significant non-infinging uses.
A lot of People seem to want to download movies/games/TV shows/music digitally. SuprNova is the clear market leader on the black side of things. Bittorrent is a neutral technology which can be used illegally.
Please read my position statement on that at P2PNet.net
A good quote in this context is "The Street finds its own uses for technology", William Gibson.
Another example is Freenet which would give freedom of expression back to the Internet.
BBC interview with Ouyang Ziyuan, chief scientist of the Moon exploration programme.
With a simple Google search on China Space Moon you can find this article. I expected something better than this from Slashdot.
BBC Article:
He reportedly told the Beijing Morning Post: "Our long-term goal is to set up a base on the Moon and mine its riches for the benefit of humanity."
China announced last year that it was planning to launch a manned flight into space by 2005, and in March China successfully launched its third unmanned test flight of a Shenzhou space capsule.
Only two countries - the former Soviet Union and the United States - have achieved manned space flight.
In training
The official China Daily said the country was already training 12 astronauts to prepare for the nation's first manned space mission.
China is yet to put a human into space
That mission would aim to create a Chinese space station and establish links with international space stations, it said.
China first announced a four-step, manned spaceflight programme in 1999, which included plans for a space station served by shuttle-style vehicles.
Correspondents say China's main motivation for space exploration is to raise national prestige, both at home and overseas.
But China's space industry suffered a series of setbacks in the mid-90s. A Long March 2E rocket carrying a telecommunications satellite exploded after blast-off in January 1995, killing a family of six.
Another rocket blew up after take-off in early 1996 and, later in the year, a Long March rocket placed a $120m Chinese satellite in the wrong orbit, leaving it to drift hopelessly in space.
One of the MusicBrainz developers here.
It seems our provider cannot handle the bandwidth requirements for the Slashdot effect.
We are very sorry about that. Please come back tomorrow if you like out project.
It is always great to see applications of P2P technology. But let's do the math on this one.
50 PC's in your Intranet, each with a 20GByte disk. Thus your backup need is a cool 1000 GByte, if the disks are all fully filled and fully backed-up...
For this concept to work you can see that you need to exclude every copy of Dos95/Office from being backed-up. The basis of P2P is the the service users are also the service provides, thus every participating node needs free HD space. Depending on the crypto overhead and your non-backup portion, you still need a lot of free space for this concept. What is the added value above a reduntant RAID server? Is the total cost of ownership really lower?
MojoNation proposed an awsome concept with their virtual P2P credits. However, this idea seems to suggest that P2P technology increases you HD size, it does not!
Europe is currently leading with an OC192 backbone, therefore it's more a case of the US connecting to the Internet2 with their smaller OC48 backbones...
The rest of the world also counts, for example, the asia-pacific continent with SINET, KOREN, and SingAREN.
If their problem with the OpenSource server emulator is the piracy, problems can be solved easily.
Why should the on-line piracy validation be integrated with the server? It is "relatively" easy to split the actual battle.net serving with the vadidation process.
With an Open client/server protocol the client could get a ticket/.net pasport from the official site and play with the Free server...
Just my 5 EuroCents.
Re:Actual power 1/2 a watt, heading to 2 watts
on
Rechargeable Boots
·
· Score: 4, Informative
From the article:
>the prototype boot generates about half a
> watt of power
Because no technical details are available their is no way to know if this is the maximum power output during touchdown of the foot or the average power output during an average person walking at an average pace.
My assumption is that the quoted 0.5 W is the delivered top power, not the average. This would be more in balance with existing technology. Otherwise they go directly for the next Nobel price for advancing current technology with a factor of 10,000.
As a guy who likes technology I hope they win the Noble price, but it is doubtfull.
This fluffy article gives no numbers on the performance, but with their menthod it should not come even close to being realistic. When you do the math it is theoretically possible to get resonable amount of power from your shoes, but the technology is still experimental.
As one of the developers of an Open Hardware PDA I can say that you can only do very litte computation for that and it would require an afternoon of walking to scrape enough energy together for a cell phone call.
The bandwidth of the last mile of cable is shared amoungst many other users. 212 compressed digital channels are probably not sufficient to support the video needs of all users that share the same cable in the 'cable cell'.
If you have the hardware to do 'video/TV on demand' it is hard to avoid not getting hit by lawyers. This kind of infrastructure costs more than users are willing to pay for every month. Internet access would be a better way to use the bandwidth.
The bandwidth of current cable infrastructures is often limited to the broadcast of about 25 - 40 video channels at the last mile. In the near future I seriously doubt if this sort of infrastructure is capable of competing on cost and service with a $299 Tivo box. Besides Tivo, if you provide users with a 1 Mbps Internet connection it is possible to stream video in real-time, in my opinion users would go for this option.
Who want's inserted adds or other stuff inserted in their video stream?
If a company offers hassle free Internet capable of video streaming, a subsription based video server could be more cost effective.
As a researcher working closely with the Compaq people I know there is even more to come.
We are working on stuff that will be superior to the longrun technology of TransMeta and the SpeedStep technology of Intel. download research paper.
The iPAQ people are very Linux friendly, check out the website backed by several Compaq people. With a wireless link on the iPAQ such as GPRS (European GSM packet solution) it is possible to browse the Internet with your favorite browser.
With XScribble you can use it just like your PalmPilot. To only difference is the increased weight, better display and powerfull processor.
If there was a market for high quality consumer support ISPs, wouldn't there be any in an efficient market place?
Consumers want cheap bandwidth and pay nothing, right? Large ISPs have scale benefits that make them price competitive to small ISPs. Most small ISPs that I've seen are/were not making money for the hours they are/were putting into it.
In emerging markets with strong growth such as the ISP market with huge number of consumers going on-line you see a large shake-out of ISPs that are not price competitive, or they sell-out for large amount of money to a large ISP that wants their customers. Is that so strange?
Getting a lower power consumption from frequency and voltage scaling is not easy. I'm the author of the ARM-Linux frequency and voltage scaling driver and do a Ph.D. on it. The problem is that a processor does not know what speed to run in. The processor has to be explicitly set in a certain frequency mode. In Crusoe the code morphing software tries to guess a good speed. Voltage and frequency scaling technique has been show to work in 1994 by Mark Weiser, it is not new. The problem has always been for the software to know what speed to set the processor in.
A question for both the projects Gutenberg and nupedia:
Do you think your project would thrive and survive if you were hit by a train, or is the project still very much depending on you for expansion and future direction?
You are right we are nowwhere close to reaching the limits of lossy audio compression.
But my statement was that the subband filtering method of doing compression is now mature and is unlikely to deliver more compression. New methods are already proven to be superiour to MP3...
Researchers in the field of audio coding agree that the subband filtering technology in MP3 and AAC is now mature. The MP3PRO claims are very impressive, the improvement claims they make are not very likely. They have either changed the world of audio coding or are defending they intrests with waporware.
For my Ph.D. research I work a lot with audio codecs and the statement that they want a 64 Kbps bitrate to sound like 128 Kbps MP3 is doubtfull.
They claim the MP3PRO format to be downwards compatible, the MP3 standard does not leave any room for a 50% reduction without a giant breakthrough.
Re:Open Content Usenet initiative
on
Deja For Sale
·
· Score: 1
If you are happy with current software, please keep it.
But if you want access to Usenet messages with a simple browser for anywhere, a deja.com like solution can be better.
Do you know an Usenet provider that is free? All usenet providers on my list ask a few $/month. ISPs charge indrectly for it, or just have a crappy flooded server. With a advertisement based business model you do not pay, it's your choise.
Open Content Usenet initiative
on
Deja For Sale
·
· Score: 4
Creating a open network of Deja.com like servers is my dream and I already have stable running code for it...
At SourceForge.net the project UsenetWeb is located that is the Open Source implementation of Deja.com
Currently the software is stand-alone, but is could be expanded to form a network of OpenContent deja.com like servers. With the sharing of news groups across several servers, it could become a volenteers only job... The software only supports text-only newsgroups for now.
Are there people here that would like to run this software and build a Open Usenet Network? ? ?
See a demonstration of Open Source deja.com at Usenet4free.com
Johan.
Re:Roll your own archive...
on
Deja For Sale
·
· Score: 1
What is the URL of your interface?
Could you Open Source your scripts...
It would be a loss if resources are wasted, I've spend several months coding a superiour Web interface also (UsenetWeb at sourceforge).
Slashdot Mirror
The detailed statistics on their page indicate "viewing quality: 99.79% pieces played, 0.21% lost.
It seems that the testers use broadband that can handle the 600 Kbps requirements + this algorithm is holding.
With front-page coverage the next 24h will be a make or break I guess...
A message from the Tribler researchers...:
Download of the software
Planned next features and documentation
Browse the Python code (LGPL)
SVN repository
Scientific paper on Give-to-Get algorithm
Please post any question you have and we will reply asap.
To the comment of Shadow, that Bittorrent is designed for offloading traffic from web servers. You are quite right, that was the original story, but currently we see both wide-spread illegal copying and significant non-infinging uses. A lot of People seem to want to download movies/games/TV shows/music digitally. SuprNova is the clear market leader on the black side of things. Bittorrent is a neutral technology which can be used illegally. Please read my position statement on that at P2PNet.net
A good quote in this context is "The Street finds its own uses for technology", William Gibson.
Another example is Freenet which would give freedom of expression back to the Internet.
Greetings, Johan.
BBC interview with Ouyang Ziyuan, chief scientist of the Moon exploration programme.
With a simple Google search on China Space Moon you can find this article. I expected something better than this from Slashdot.
BBC Article:
Google cache of MusicBrainz.org
One of the MusicBrainz developers here.
It seems our provider cannot handle the bandwidth requirements for the Slashdot effect. We are very sorry about that. Please come back tomorrow if you like out project.
Our dual 1.2GHz Linux server is doing OK:
Greetings,
J.
The Podkletnov Effect
Search engine Google relates this guy to the alternative science section...
Please keep this number in mind. This is not a guy that tries to make SF happen. Zero-G would have a huge impact on the future of humanity.
Does -2% G too?
Johan.
50 PC's in your Intranet, each with a 20GByte disk. Thus your backup need is a cool 1000 GByte, if the disks are all fully filled and fully backed-up...
For this concept to work you can see that you need to exclude every copy of Dos95/Office from being backed-up. The basis of P2P is the the service users are also the service provides, thus every participating node needs free HD space. Depending on the crypto overhead and your non-backup portion, you still need a lot of free space for this concept. What is the added value above a reduntant RAID server? Is the total cost of ownership really lower?
MojoNation proposed an awsome concept with their virtual P2P credits. However, this idea seems to suggest that P2P technology increases you HD size, it does not!
Just my 5 EuroCents,
J.
The rest of the world also counts, for example, the asia-pacific continent with SINET, KOREN, and SingAREN.
Just my 5 EuroCents, Johan.
Why should the on-line piracy validation be integrated with the server? It is "relatively" easy to split the actual battle.net serving with the vadidation process.
With an Open client/server protocol the client could get a ticket/.net pasport from the official site and play with the Free server...
Just my 5 EuroCents.
Because no technical details are available their is no way to know if this is the maximum power output during touchdown of the foot or the average power output during an average person walking at an average pace.
My assumption is that the quoted 0.5 W is the delivered top power, not the average. This would be more in balance with existing technology. Otherwise they go directly for the next Nobel price for advancing current technology with a factor of 10,000 .
As a guy who likes technology I hope they win the Noble price, but it is doubtfull.
Just my 2 Eurocents,, Johan.
The previous Slashdot article on this topic gives actual numbers: 0.0013 W when walking normally.
This fluffy article gives no numbers on the performance, but with their menthod it should not come even close to being realistic. When you do the math it is theoretically possible to get resonable amount of power from your shoes, but the technology is still experimental.
As one of the developers of an Open Hardware PDA I can say that you can only do very litte computation for that and it would require an afternoon of walking to scrape enough energy together for a cell phone call.
Just my 2 Eurocents,
Johan.
If you have the hardware to do 'video/TV on demand' it is hard to avoid not getting hit by lawyers. This kind of infrastructure costs more than users are willing to pay for every month. Internet access would be a better way to use the bandwidth.
J.
The bandwidth of current cable infrastructures is often limited to the broadcast of about 25 - 40 video channels at the last mile. In the near future I seriously doubt if this sort of infrastructure is capable of competing on cost and service with a $299 Tivo box. Besides Tivo, if you provide users with a 1 Mbps Internet connection it is possible to stream video in real-time, in my opinion users would go for this option.
Who want's inserted adds or other stuff inserted in their video stream? If a company offers hassle free Internet capable of video streaming, a subsription based video server could be more cost effective.
What do users want?
Just my 5 Eurocents Johan.
As a researcher working closely with the Compaq people I know there is even more to come. We are working on stuff that will be superior to the longrun technology of TransMeta and the SpeedStep technology of Intel. download research paper.
The iPAQ people are very Linux friendly, check out the website backed by several Compaq people. With a wireless link on the iPAQ such as GPRS (European GSM packet solution) it is possible to browse the Internet with your favorite browser.
With XScribble you can use it just like your PalmPilot. To only difference is the increased weight, better display and powerfull processor.
Johan (j@mp3.nl)
Read real information like this
This information is from a university expert and trial witness.
It would improve your perspective.
Johan.
If there was a market for high quality consumer support ISPs, wouldn't there be any in an efficient market place?
Consumers want cheap bandwidth and pay nothing, right? Large ISPs have scale benefits that make them price competitive to small ISPs. Most small ISPs that I've seen are/were not making money for the hours they are/were putting into it.
In emerging markets with strong growth such as the ISP market with huge number of consumers going on-line you see a large shake-out of ISPs that are not price competitive, or they sell-out for large amount of money to a large ISP that wants their customers. Is that so strange?
Johan.
This is incorrect say's the manual.
Getting a lower power consumption from frequency and voltage scaling is not easy. I'm the author of the ARM-Linux frequency and voltage scaling driver and do a Ph.D. on it. The problem is that a processor does not know what speed to run in. The processor has to be explicitly set in a certain frequency mode. In Crusoe the code morphing software tries to guess a good speed. Voltage and frequency scaling technique has been show to work in 1994 by Mark Weiser, it is not new. The problem has always been for the software to know what speed to set the processor in.
Read more details ... .
Johan.
Do you think your project would thrive and survive if you were hit by a train, or is the project still very much depending on you for expansion and future direction?
Johan.
But my statement was that the subband filtering method of doing compression is now mature and is unlikely to deliver more compression. New methods are already proven to be superiour to MP3...
Johan (j@mp3.nl)
That would mean they take for example a 32 Kbps rate compatible MP3 frames and add a new stream of 32 Kbps PRO side info.
It would be impressive if they could equal the quality of 128 Kbps standard MP3 with that...
Johan.
For my Ph.D. research I work a lot with audio codecs and the statement that they want a 64 Kbps bitrate to sound like 128 Kbps MP3 is doubtfull. They claim the MP3PRO format to be downwards compatible, the MP3 standard does not leave any room for a 50% reduction without a giant breakthrough.
A new technology is needed such as sinusodial coding.
MP3PRO Open technology? also doubtfull.
Johan.
But if you want access to Usenet messages with a simple browser for anywhere, a deja.com like solution can be better.
Do you know an Usenet provider that is free? All usenet providers on my list ask a few $/month. ISPs charge indrectly for it, or just have a crappy flooded server. With a advertisement based business model you do not pay, it's your choise.
Creating a open network of Deja.com like servers is my dream and I already have stable running code for it...
At SourceForge.net the project UsenetWeb is located that is the Open Source implementation of Deja.com
Currently the software is stand-alone, but is could be expanded to form a network of OpenContent deja.com like servers. With the sharing of news groups across several servers, it could become a volenteers only job... The software only supports text-only newsgroups for now.
Are there people here that would like to run this software and build a Open Usenet Network? ? ?
See a demonstration of Open Source deja.com at Usenet4free.com
Johan.
Could you Open Source your scripts...
It would be a loss if resources are wasted, I've spend several months coding a superiour Web interface also (UsenetWeb at sourceforge).
Johan.