By using GPS, you are limited to the locational accuracy of the GPS satellites. How old are those satellites? Surely some aspect of the technology they use to determine/maintain their own position has advanced in the time since they were launched.
GPS satellites are replaced in orbit on a regular basis.
GPS orbital data, as transmitted by the satellites, is updated on an almost hourly basis from the ground control station at Schriever Air Force base in Colorado.
Usually, it's helpful to know what you're talking about before you start talking about it.
This sounds like it would raise the issue of single point of failure; if someone managed to knock one of the GPS satellites out of orbit, a bunch of other satellites that were relying on it would then follow it out of the sky. That doesn't sound like such a great idea to me.
Unless, of course, there were multiple GPS satellites, and each satellite relyed on the positioning information returned by the majority of them. The odds of all of them being knocked out at once are much lower than just one being knocked out.
There are 24 (plus or minus 1 or 2) GPS satellites in orbit at any one time. In order for your GPS receiver to work at all, it has to receive signals from a minimum of three satellites, four if you want to get a fix that includes altitude. My commercial-grade Garmin 12XL generally shows signals from 7-8, and I've seen as many as 12 at one time.
Still, if someone were interested in knocking out communications in the united states, they would still only have to knock out the GPS ones in order to knock out the rest.
Not hardly. Satellite designers are exceedingly paranoid, and they would never rely on a single method of positioning information.
Perhaps you can give us better budget estimates? You might start out by calling vendors (like they did in the article)...
Re:There will never again be a good day....
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The passengers and crew undoubtably cooperated to the extent they did because they thought it was some ransom bullshit.
Actually, one of the passengers who called his wife was told by his wife what was going on, so they knew on the plane that they were now a flying bomb.
Not only many more would've been trapped, but the buildings would've likely collapsed almost immediately, and would've collapsed horizontally, not vertically.
Doubtful. The structure of the lower floors would actually be stronger, because of the need to support more weight. And, the building was basically constructed like a giant tube, and the undamaged outer columns would have acted to keep the building from swaying too much.
I suspect that if it hadn't been for the massive fuel load, the buildings would still be standing.
Uh, it does. On Windows Update it's referred to as the Indexing Service patch, but it's there and automatically installed as part of the Critical Updates section.
The fellows at eeye, who are the ones who found the IIS hole, and then found and analyzed the worm called it Code Red, because they drank copious quantities of Code Red Mountain Dew while they worked on it. Check the archives at SecurityFocus.
if this is going to be argued, can't the riaa and they're group say that much of this music is freely available on the airwaves, mtv (when they play music), etc?
Where it's paid for, on a per-play basis. The music may be "freely" available TO YOU, but the radio station or MTV paid for the right to play it. And YOU are paying, indirectly, by being exposed to advertising.
Last I heard, the algorithm only worked in base 16, but that may have changed now.
Uh, since the article says it finds the Nth binary digit, I think it would be safe to say that the algorithm actually works in binary. That technically means you're right, since hex is a binary shorthand.
I don't know what bothers me worse: The fact that the authors of the paper listed here think they've discovered some great fundamental truth, or some slashdot readers think in such narrow tracks. It's no great secret that IBM Research exists, or that they spend a great deal of money, time, and expertise working on issues that we run into all the time. 5 minutes with Google could have easily uncovered it.
I posted to BugTraq that the published curves for Code Red infection rates looked very much like traditional biological infection rates, and was soundly rebuked in emails by people who obviously knew better, except they didn't.
"Those who forget the past are condemned to repeat it." -- Santayanna
You mean like this? (of special interest are the graphs starting here. Also note that the first attempt to model the spread of a virus was done in 1703, and the resulting equations look a whole lot like the ones derived for Code Red.)
You guys might want to check out DIRECTV. It doesn't matter how many people live in your area, the picture quality is the same. I've had it for a few weeks now, and haven't noticed any compression problems.
You just haven't been looking at the right channels. DirecTV can choose different bit rates for different channels, and the ones that they have lowered the bit rates on (Food Network for one) has noticable blocks and pixellation.
Of course, they use the higher bit rates for HBO and PPV.
When *I* was in college, around 1975, a high-priced LP was in the $9 range. Using the Cost of Living Calculator at http://www.newsengin.com/neFreeTools.nsf/CPIcalc?O penView we find that $9 in 1975 is the equivalent of $29.44 today. In other words, if a CD today costs $15, then its about HALF the cost of a music recording in 1975.
Lightweight? What besides sending chat-style messages do you need? And, Yahoo does store the list server-side. And, they have a Java client available through the browser, so you don't even have to install anything on your machine (useful if you're in the library or at a fascist company that doesn't let you install software on your desktop.
If people are interested in what to say when confronted by this sort of letter, they could do worse than to follow the example of the guys who wrote the Ulysses for Dummies web site. They got a letter from lawyers for IDG Publications (the publishers of the...for Dummies series). Their reply is priceless. Copy and paste away!
I have NEVER met a car that could accelerate faster than it could decelerate. Please tell me what kind of car it was. I want one.
It was some Mitsubishi sports sedan, I forget the model.
And, if I had slammed on the brakes, the car just behind me would have wound up in the front seat with me, along with the back seat passengers. Sorry, but at that time, acceleration was the only way out.
Slashdot Mirror
Usually, it's helpful to know what you're talking about before you start talking about it.
Unless, of course, there were multiple GPS satellites, and each satellite relyed on the positioning information returned by the majority of them. The odds of all of them being knocked out at once are much lower than just one being knocked out.
There are 24 (plus or minus 1 or 2) GPS satellites in orbit at any one time. In order for your GPS receiver to work at all, it has to receive signals from a minimum of three satellites, four if you want to get a fix that includes altitude. My commercial-grade Garmin 12XL generally shows signals from 7-8, and I've seen as many as 12 at one time.
Still, if someone were interested in knocking out communications in the united states, they would still only have to knock out the GPS ones in order to knock out the rest.
Not hardly. Satellite designers are exceedingly paranoid, and they would never rely on a single method of positioning information.
Perhaps you can give us better budget estimates? You might start out by calling vendors (like they did in the article)...
Actually, one of the passengers who called his wife was told by his wife what was going on, so they knew on the plane that they were now a flying bomb.
Doubtful. The structure of the lower floors would actually be stronger, because of the need to support more weight. And, the building was basically constructed like a giant tube, and the undamaged outer columns would have acted to keep the building from swaying too much.
I suspect that if it hadn't been for the massive fuel load, the buildings would still be standing.
No, because they would have then collapsed immediately.
If you buy your butter in 50 pound lots, you're going to pay less than dairy-case retail for it anyway.
Uh, then what exactly does
mean? (copied from the article)If you're looking for something to bash Slashdot about, look a little harder.
...phil
"How much does the Washington Monument weigh?"
You shouldn't care if they get the right answer - what counts is their reaction to the questions, and their thought process coming to an answer.
Uh, it does. On Windows Update it's referred to as the Indexing Service patch, but it's there and automatically installed as part of the Critical Updates section.
...phil
The fellows at eeye, who are the ones who found the IIS hole, and then found and analyzed the worm called it Code Red, because they drank copious quantities of Code Red Mountain Dew while they worked on it. Check the archives at SecurityFocus.
...phil
Where it's paid for, on a per-play basis. The music may be "freely" available TO YOU, but the radio station or MTV paid for the right to play it. And YOU are paying, indirectly, by being exposed to advertising.
Everything free is worth what you paid for it.
...phil
OK, convert 0.1 decimal into any base that's a power of two. Let me know when you're finished.
...phil
Uh, since the article says it finds the Nth binary digit, I think it would be safe to say that the algorithm actually works in binary. That technically means you're right, since hex is a binary shorthand.
...phil
I posted to BugTraq that the published curves for Code Red infection rates looked very much like traditional biological infection rates, and was soundly rebuked in emails by people who obviously knew better, except they didn't.
"Those who forget the past are condemned to repeat it." -- Santayanna
...phil
You mean like this? (of special interest are the graphs starting here. Also note that the first attempt to model the spread of a virus was done in 1703, and the resulting equations look a whole lot like the ones derived for Code Red.)
...phil
You just haven't been looking at the right channels. DirecTV can choose different bit rates for different channels, and the ones that they have lowered the bit rates on (Food Network for one) has noticable blocks and pixellation.
Of course, they use the higher bit rates for HBO and PPV.
...phil
He broke the law.
Except that it wasn't passed in Russia, where he wrote the code and published it.
...phil
What felony? The disemination and discussion of true facts?
...phil
I have extracted some of the discussion here and turned it into a post on the Adobe stock board at Yahoo. (Ticker code ADBE)
...phil
When *I* was in college, around 1975, a high-priced LP was in the $9 range. Using the Cost of Living Calculator at http://www.newsengin.com/neFreeTools.nsf/CPIcalc?O penView we find that $9 in 1975 is the equivalent of $29.44 today. In other words, if a CD today costs $15, then its about HALF the cost of a music recording in 1975.
...phil
Tuscon Amateur Radio Society has one.
...phil
Lightweight? What besides sending chat-style messages do you need? And, Yahoo does store the list server-side. And, they have a Java client available through the browser, so you don't even have to install anything on your machine (useful if you're in the library or at a fascist company that doesn't let you install software on your desktop.
...phil
If people are interested in what to say when confronted by this sort of letter, they could do worse than to follow the example of the guys who wrote the Ulysses for Dummies web site. They got a letter from lawyers for IDG Publications (the publishers of the ...for Dummies series). Their reply is priceless. Copy and paste away!
...phil
It was some Mitsubishi sports sedan, I forget the model.
And, if I had slammed on the brakes, the car just behind me would have wound up in the front seat with me, along with the back seat passengers. Sorry, but at that time, acceleration was the only way out.
...phil