I know that I've recovered data from damaged tar archives in the past. I just ran some tests with intentionally damaged tar files, using GNU tar from FreeBSD 5.2.1. GNU tar successfully recovered the data from all of the damaged tar files. It just skips over the damaged bits and resynchronizes at the next valid file header.
A particular implementation of tar may not handle errors well, but that isn't a defect of the file format. The program should be able to skip over damaged sections of the tape and recover the rest of the files.
It may be circular, but it's reality. It can cause problems when people have non-emergency calls. 911 is supposed to be only for emergencies. It can be difficult or impossible in some areas to find a number to report problems that aren't emergencies.
You should reread that Wikipedia article more carefully, and look through the manufacturer's web site at http://www.rusarm.ru/exprod.htm. Look for the RPG-7V1 launcher, and the PG-7VL, PG-7VR, TBG-7V grenades.
An RPG is not just a "grenade", it's a shaped-charge warhead. Current production models are spec'd to penetrate 500-750mm of armor. That's enough to damage or kill many tanks, let alone helicopters.
That's back when the police, fire and medical services had published emergency numbers and someone on duty 24/365 to answer and dispatch the calls.
In many places, there are no published 7-digit numbers for emergency services. All of the old infrastructure was eliminated and replaced with consolidated 911 dispatching centers. If you call the local police precinct or firehouse, they will probably tell you to call 911.
Helicopters have always been vulnerable to small arms fire and RPGs. That doesn't mean that they are worthless. You design them to be as survivable as is practical.
Multi-million dollar tanks can be destroyed by relatively cheap anti-tank missiles. That doesn't mean that we should ship all our tanks off to the scrapyard.
The smart thing to do is to design tactics and force mixtures so that each component's weaknesses are protected from exploitation by the enemy.
There's probably a lot of material in the NSA archives on how to crack rotor machines. After World War II, many small countries were given surplus rotor machines as part of foreign/military aid packages. They weren't told that the machines could be cracked by cryptanalysts working for the major powers. Even the U.S Navy used rotor machines, such as the KL-7, into the 1980s.
They were withdrawn after it was discovered that they had been thoroughly compromised by the Walker spy ring.
I bought a volume of TAOCP about 15 years ago that included a postcard for being notified when Volume 4 was published, which was supposed to be in the near future.
Broadcast FM can have excellent sound quality. The reason that most stations sound like shit is the management's desire to sound "louder" than every other station on the dial.
Kodak could not, or would not, adapt to this situation; and they've been looking for the next InstaMatic ever since. Next thing they tried was 110 film: smaller negative size, and still propietary. Serious amateurs, and pros, didn't go for it.
Serious amateurs and pros were never the market for these cameras. The average person wants something that is cheap, easy to use, and produces images of reasonable quality. That's been the market for Kodak cameras since the beginning of the company. If you wanted a real camera, you bought a Leica or Nikon.
My Astronomy professor also mentioned the solar wind as a contributing factor. Mars is geologically dead, so there is no significant magnetic field to shield the planet from the solar wind. This has accelerated the loss of the Martian atmosphere.
The United States withdrew from the ABM treaty, as permitted in the provisions of the treaty. The treaty was not "broken". Get your facts straight before you start jerking your knees.
Re:If there is water on mars
on
Brine on Mars?
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· Score: 4, Informative
Gases do move into outer space. Gravity slows down the process, but it doesn't stop it. When you get to the outer atmosphere, the velocity of gas atoms and molecules follow a predictable statistical distribution, dependent on their atomic mass and average temperature. Many atoms and molecules will reach escape velocity, and diffuse away from the planet. What do you think happened to the atmospheric helium on Earth?
I suspect Verizon doesn't want to be put in a situation where they might get sued for changing someone's phone number, depriving them of their "property". There may be times when someone's telephone number has to be changed for technical reasons, such as moving subscribers from one central office to another. The telephone company needs to reserve the right to change subscriber's numbers when it is required by changes to the telephone system.
The router would need to meet higher standards for reliability, like those for telephone switches. The problem is that most networking equipment is designed for "cheap and fast", not bulletproof reliability. The same applies to network designs, how many single points of failure can you find in your network?
The Navy had made navigation a well-established science, well before the introduction of the airplane. The airplane was treated as a "ship of the air" in many other ways. It has a captain, with the final authority and responsibility for the operation of the aircraft.
The nautical mile is equal to one second of arc along a great circle of the Earth, which is convenient for navigation. It isn't just some arbitrary unit.
Per hour costs are based on more than the cost of fuel. The military has extensive statistics on things like maintenance. You may have to pay for 30 man-hours of maintenance, on average, for each hour in the air. Then there are replacement parts, overhauls, scheduled inspections, consumables, etc.
I have an old pager that operates at ~929 MHz. It would be jammed by many of these cell phone jammers, according to their published specifications. The jammer doesn't know whether or not it is jamming a pager used for emergency purposes.
Slashdot Mirror
I know that I've recovered data from damaged tar archives in the past. I just ran some tests with intentionally damaged tar files, using GNU tar from FreeBSD 5.2.1. GNU tar successfully recovered the data from all of the damaged tar files. It just skips over the damaged bits and resynchronizes at the next valid file header.
A particular implementation of tar may not handle errors well, but that isn't a defect of the file format. The program should be able to skip over damaged sections of the tape and recover the rest of the files.
Only in textbooks. The real world is analog and messy.
It may be circular, but it's reality. It can cause problems when people have non-emergency calls. 911 is supposed to be only for emergencies. It can be difficult or impossible in some areas to find a number to report problems that aren't emergencies.
This story will give you an idea of the high employee standards at Taco Bell.
You should reread that Wikipedia article more carefully, and look through the manufacturer's web site at http://www.rusarm.ru/exprod.htm. Look for the RPG-7V1 launcher, and the PG-7VL, PG-7VR, TBG-7V grenades.
An RPG is not just a "grenade", it's a shaped-charge warhead. Current production models are spec'd to penetrate 500-750mm of armor. That's enough to damage or kill many tanks, let alone helicopters.
In many places, there are no published 7-digit numbers for emergency services. All of the old infrastructure was eliminated and replaced with consolidated 911 dispatching centers. If you call the local police precinct or firehouse, they will probably tell you to call 911.
Multi-million dollar tanks can be destroyed by relatively cheap anti-tank missiles. That doesn't mean that we should ship all our tanks off to the scrapyard.
The smart thing to do is to design tactics and force mixtures so that each component's weaknesses are protected from exploitation by the enemy.
Sure, let's just add 6" of armor plating to the fuselage. Oh, you want it to fly too?
There's probably a lot of material in the NSA archives on how to crack rotor machines. After World War II, many small countries were given surplus rotor machines as part of foreign/military aid packages. They weren't told that the machines could be cracked by cryptanalysts working for the major powers. Even the U.S Navy used rotor machines, such as the KL-7, into the 1980s. They were withdrawn after it was discovered that they had been thoroughly compromised by the Walker spy ring.
I bought a volume of TAOCP about 15 years ago that included a postcard for being notified when Volume 4 was published, which was supposed to be in the near future.
Broadcast FM can have excellent sound quality. The reason that most stations sound like shit is the management's desire to sound "louder" than every other station on the dial.
Serious amateurs and pros were never the market for these cameras. The average person wants something that is cheap, easy to use, and produces images of reasonable quality. That's been the market for Kodak cameras since the beginning of the company. If you wanted a real camera, you bought a Leica or Nikon.
Soil is a good radiation shield. 8.4 cm of soil will block 50% of the radiation. Ice would probably be even better.
My Astronomy professor also mentioned the solar wind as a contributing factor. Mars is geologically dead, so there is no significant magnetic field to shield the planet from the solar wind. This has accelerated the loss of the Martian atmosphere.
The United States withdrew from the ABM treaty, as permitted in the provisions of the treaty. The treaty was not "broken". Get your facts straight before you start jerking your knees.
Gases do move into outer space. Gravity slows down the process, but it doesn't stop it. When you get to the outer atmosphere, the velocity of gas atoms and molecules follow a predictable statistical distribution, dependent on their atomic mass and average temperature. Many atoms and molecules will reach escape velocity, and diffuse away from the planet. What do you think happened to the atmospheric helium on Earth?
I suspect Verizon doesn't want to be put in a situation where they might get sued for changing someone's phone number, depriving them of their "property". There may be times when someone's telephone number has to be changed for technical reasons, such as moving subscribers from one central office to another. The telephone company needs to reserve the right to change subscriber's numbers when it is required by changes to the telephone system.
Please stop propagating this urban legend.
The router would need to meet higher standards for reliability, like those for telephone switches. The problem is that most networking equipment is designed for "cheap and fast", not bulletproof reliability. The same applies to network designs, how many single points of failure can you find in your network?
one minute of arc
The nautical mile is equal to one second of arc along a great circle of the Earth, which is convenient for navigation. It isn't just some arbitrary unit.
Per hour costs are based on more than the cost of fuel. The military has extensive statistics on things like maintenance. You may have to pay for 30 man-hours of maintenance, on average, for each hour in the air. Then there are replacement parts, overhauls, scheduled inspections, consumables, etc.
I have an old pager that operates at ~929 MHz. It would be jammed by many of these cell phone jammers, according to their published specifications. The jammer doesn't know whether or not it is jamming a pager used for emergency purposes.