Even if the entire United States lost connection, the Internet would still 100% reachable for the rest of the world.
Try tracerouting to multiple websites in various random countries sometime, you'll find a lot of them route via the states, if you can really be bothered follow them up at a looking glass and you're unlikely to find alternative routes via a different country.
Of course, this means that a lot of US-based internet users are getting their traffic to sites in other countries for free (or, rather, paid for by the international ISPs)..
Forced taxation? What, do you really think that the cost of advertising adding to the prices of goods and services *isn't* forced taxation? (by posting here, you already demonstrate that you aren't living sufficiently off-the-grid to having avoided contributing to the cost of tv).
I don't think fighting for funding is going to do anything at all to contribute to quality science programming... BBC (including the radio, which probably has more quality science than TV, and of course *doesn't* need a license) and C4 (both with public service commitments) are the only place for quality science programming in.uk. Don't really see much of that on ITV, Discovery, etc. (In fact, with Discovery you're paying for the channel *on top of* advertising! Wow, isn't that great. And the number of subscribers to satellite/cable tv proves that people are happy to pay to watch channels).
No subsidy on the decoder unless it's hooked up to a UK telephone line 24x7.. It's not really legal to watch it outside the UK either. (That's not to say that it can't be done though).
easydns have a nice admin interface, maybe their service has a few more features than you're asking for - but who knows when you might want to add another username@ pointing to somewhere else:) Reliable, and their servers are on multiple continents. (they don't webhost - they do dns, dynamic dns, mail forwarding and web redirection).
Surely the DVD technology would be _much_ more successfull if the available drives had a digital video out.
They do, they call them DVD-ROM;)
Surely (standalone) DVD drives would be much more successful if had an analog 15-pin VGA connector, too. (a pass-through to plug a PC into and automatic switching would be nice).
Warehouses full of region-1 DVDs have been seized in UK. (As they are not certified by the British Board of Film Censors, it is illegal for UK companies to supply these, possible fines up to £20000, up to 6 months in prison).
(Also, FACT are using some probably bogus suggestions that copyright is being broken because they are bit licensed for this country to shut down some distributors).
Even better, McAfee Antivirus detects the FBI virus in one of your files, and automagically patches PGP into a special "email the FBI a copy of everything you encrypt just in case the virus isn't active" mode...
never seems to work for me, I often read the same text again. I usually find discrepancies between clock time and daylight easier to pick up on. Another good way is to record your dreams (a notebook will do fine unless you know of something more hi-tech;) and pick up on common themes. Then, start looking for these themes through your waking life, and use them as a trigger to check for other things which might indicate you're dreaming.
We've had ac as part of domain names since before some clever person decided to adopt the bizarre USian way of writing them the wrong way round. It took years to try and change the memory imprints for ic.doc and hensa.micros...
I think we're just going for pronouncable domain names. (Well, for the most part). ac.uk, co.uk, org.uk, net.uk, police.uk, gov.uk, nic.uk, parliament.uk, mod.uk, though there are the remnants of govt.uk and orgn.uk still hanging around. And we've got the nearly very sensible.ltd.uk and.plc.uk which only registered companies are allowed to use, but it never really worked because they have to follow the exact spelling of the registered name, which are often a bit stupid, unless chosen with this use in mind. bl.uk, icnet.uk, nel.uk. And mullermartini.uk, whatever exactly that is..
But, by quite a long way, I think the prize for the funkiest of them all has got to go to jet.uk, fantastic!
Google does well because it pays attention to the text *inside the hyperlink to pages*. For example, this link for news for nerds, stuff that matters means that google searches on news, nerds, stuff, and matters, are more likely to show/.
Once you've thrown out the 'click here' and 'this link' junk, this is far more reliable than using meta tags, and often more reliable than looking for keywords within the page itself.
Hmm, you want as high a gain as possible to get through trees. 1m of trees will (very roughly, depending on the type of tree, time of year, whether the leaves are wet, etc) halve the signal (i.e. drop it by 3dB).
If your bridge supports antenna diversity (like the wap11 does) maybe it would be helpful to use two yagis, parabolic grid or dish antennas (directional, tightly focussed), one for each site. If you use an omnidirectional antenna for the most central site, you'll probably be wanting directional antennas at the other sites to increase the gain.
If the sites are all within (180/120/90/60/45 degrees), instead of an omnidirectional you could use a panel antenna which covers a limited angle (superpass make them - maybe worth asking them what they'd suggest).
Also it might be worth knowing that most directional antennas have sidelobes where they are also sensitive, albeit at a lower gain. This often isn't particularly useful, but who knows, you might be lucky with positioning of sites:)
Decent suppliers/manufacturers should include a plot of the radiation pattern of their antennas with the description.
A feature I'd really like to see is per-host encryption keys.
Some vendors have this on software for their 11Mbps equipment (Lucent on their ISP kit, they are picked up from RADIUS, I think that Cisco do something similar too), unfortunately it's not a standard...
Is there any chance they managed to make WAP for 802.11g not a joke?
I don't think WAP over 802.11g would be a joke - quite a fast way to browse the web I reckon. Just use Opera and wap.google.com to transmogrify those nasty old-fashioned html pages...;)
Mind you, I don't think it would really be much faster than using WAP over 802.11b.
Most equipment that uses Spread Spectrum Modulation will detect if any portion of the frequeny is used and hop up a bit to compensate.
Not for the current spread spectrum equipment..
Frequency hopping systems would be changing frequency anyway, not because they detect noise.
Direct sequence systems wouldn't change frequency automatically.
So, OFDM is about the nearest to your comment - it uses multiple carriers anyway, so I guess if data is not received correctly it could be retransmitted over a different carrier. Probably something like the old PEP modems.
Here is a diagram showing how OFDM transmits. (Note that in Europe we are already using OFDM commercially quite successfully for digital terrestrial television and radio - assuming that a guard period is used, it is very good at getting around multipath interference).
In Europe there is spectrum at 5GHz available for unlicensed use. Just, at present it is only usable by Hiperlan devices. (Search for BRAN on the ETSI website for information).
What type of range is it possible to get in the unlicensed spectrum? I think there are power output limits that prevent you from setting up high powered antennas to deliver long-range 2.4Ghz wireless Internet access.
Depends on the terrain and other transmitters in the area. 5-6 miles is quite possible without too much work, more is do-able but often requires high towers and may requiring tweaking timing (802.11b protocol is designed for shorter distances - the time taken to cover a very long distance can cause problems with the way the software is normally designed).
Also, how will the higher speeds affect the range and reliability of the signal (will it be as tolerant of noise)?
OFDM should be more resilient to noise. I wonder if the spec also covers using OFDM at lower speeds (11Mbps, 5.5Mbps, 2Mbps, 1Mbps) - if so that will be an improvement over 802.11b.
On the down side, it is in the same spectrum with 802.11b so you won't be bringing it up in parallel without interference and possible slow downs.
If 802.11g is replacing 802.11b in some nodes (and presumably first in those nodes sending the most data), that would increase the performance of other nodes running 802.11b in the same network since it will take less time to transmit a packet.
Yes, you can get 2.4GHz to 1600 feet with omnis and stay within the FCC limits. Though, it depends on the vertical beamwidth you need to cover (antennas produce gain by changing the space covered - directional antennas produce a more tightly focussed beam whereas high-gain omnidirectional antennas produce more of a disc shape - this is an approximation though, you need to check antenna specs to determine the space covered).
Note that at 5GHz you need a higher power output to cover the same space as at 2.4GHz.
Slashdot Mirror
here's the article about it
Try tracerouting to multiple websites in various random countries sometime, you'll find a lot of them route via the states, if you can really be bothered follow them up at a looking glass and you're unlikely to find alternative routes via a different country.
Of course, this means that a lot of US-based internet users are getting their traffic to sites in other countries for free (or, rather, paid for by the international ISPs)..
I don't think fighting for funding is going to do anything at all to contribute to quality science programming... BBC (including the radio, which probably has more quality science than TV, and of course *doesn't* need a license) and C4 (both with public service commitments) are the only place for quality science programming in .uk. Don't really see much of that on ITV, Discovery, etc. (In fact, with Discovery you're paying for the channel *on top of* advertising! Wow, isn't that great. And the number of subscribers to satellite/cable tv proves that people are happy to pay to watch channels).
No subsidy on the decoder unless it's hooked up to a UK telephone line 24x7.. It's not really legal to watch it outside the UK either. (That's not to say that it can't be done though).
easydns have a nice admin interface, maybe their service has a few more features than you're asking for - but who knows when you might want to add another username@ pointing to somewhere else :) Reliable, and their servers are on multiple continents. (they don't webhost - they do dns, dynamic dns, mail forwarding and web redirection).
Surely (standalone) DVD drives would be much more successful if had an analog 15-pin VGA connector, too. (a pass-through to plug a PC into and automatic switching would be nice).
(Also, FACT are using some probably bogus suggestions that copyright is being broken because they are bit licensed for this country to shut down some distributors).
You haven't been reading NTK closely enough, have you... here
Not cleaning viruses doesn't seem to have caused Sophos much trouble (they do clean now, but it's quite recent).
Even better, McAfee Antivirus detects the FBI virus in one of your files, and automagically patches PGP into a special "email the FBI a copy of everything you encrypt just in case the virus isn't active" mode...
Nah, viren. Much nicer.
never seems to work for me, I often read the same text again. I usually find discrepancies between clock time and daylight easier to pick up on. Another good way is to record your dreams (a notebook will do fine unless you know of something more hi-tech ;) and pick up on common themes. Then, start looking for these themes through your waking life, and use them as a trigger to check for other things which might indicate you're dreaming.
Bees buzzing works. Most of the times I've had bees in my dreaming, I've woken up to find a bee in my room.
Be very, very careful. This ride is not for the weak.
(if this doesn't make a lot of sense, you probably haven't read Vurt by Jeff Noon, in which case you probably should)..
I think we're just going for pronouncable domain names. (Well, for the most part). ac.uk, co.uk, org.uk, net.uk, police.uk, gov.uk, nic.uk, parliament.uk, mod.uk, though there are the remnants of govt.uk and orgn.uk still hanging around. And we've got the nearly very sensible .ltd.uk and .plc.uk which only registered companies are allowed to use, but it never really worked because they have to follow the exact spelling of the registered name, which are often a bit stupid, unless chosen with this use in mind. bl.uk, icnet.uk, nel.uk. And mullermartini.uk, whatever exactly that is..
But, by quite a long way, I think the prize for the funkiest of them all has got to go to jet.uk, fantastic!
Unseen University has an .edu, and it's not even on the planet :)
Once you've thrown out the 'click here' and 'this link' junk, this is far more reliable than using meta tags, and often more reliable than looking for keywords within the page itself.
If your bridge supports antenna diversity (like the wap11 does) maybe it would be helpful to use two yagis, parabolic grid or dish antennas (directional, tightly focussed), one for each site. If you use an omnidirectional antenna for the most central site, you'll probably be wanting directional antennas at the other sites to increase the gain.
If the sites are all within (180/120/90/60/45 degrees), instead of an omnidirectional you could use a panel antenna which covers a limited angle (superpass make them - maybe worth asking them what they'd suggest).
Also it might be worth knowing that most directional antennas have sidelobes where they are also sensitive, albeit at a lower gain. This often isn't particularly useful, but who knows, you might be lucky with positioning of sites :)
Decent suppliers/manufacturers should include a plot of the radiation pattern of their antennas with the description.
Mind you, I don't think it would really be much faster than using WAP over 802.11b.
Frequency hopping systems would be changing frequency anyway, not because they detect noise.
Direct sequence systems wouldn't change frequency automatically.
So, OFDM is about the nearest to your comment - it uses multiple carriers anyway, so I guess if data is not received correctly it could be retransmitted over a different carrier. Probably something like the old PEP modems.
Here is a diagram showing how OFDM transmits. (Note that in Europe we are already using OFDM commercially quite successfully for digital terrestrial television and radio - assuming that a guard period is used, it is very good at getting around multipath interference).
In Europe there is spectrum at 5GHz available for unlicensed use. Just, at present it is only usable by Hiperlan devices. (Search for BRAN on the ETSI website for information).
Note that at 5GHz you need a higher power output to cover the same space as at 2.4GHz.