The last time I checked, cesium was still the overwhelming choice for primary frequency/time standards. Rubidium standards were smaller and cheaper, with poorer performance. Hydrogen masers had better short-term stability than cesium, but poorer long-term stability.
The Soviet Union was reported as having developed and deployed ICBM warheads for the dispersal of weaponized smallpox virus and other biological agents over American cities.
I thought that the new features on the upgraded satellites included additional carriers (L2-C/A and L5) for civil use, which would allow for measurements of frequency-dependent ionospheric delay.
It's much more difficult than you think. Steerable antennas are complicated, fragile, and prone to failure. Plus, someone has to generate pointing data for the antenna.
i've yet to see a frequency agile transponder. Not that it isn't possible, but all of the ones that I've seen are fixed frequency.
There's a big difference between a 50 cent radio and a good radio. A good radio requires additional components, shielding, weight, space, and power. As usual, there's no free lunch.
The Spanish Flu was noted for killing healthy young people, the reverse of the normal pattern of killing the very young and the very old. It was also damn fast. You could be healthy one day and dead the next.
Wasn't the entire initial point of the Internet to create a more effective method of emergency communications in the event of a major disaster such as nuclear war?
No, it was originally funded to share resources among research institutions.
Even if you find a station with a format that doesn't suck, there is a high probability that the station mangles the audio with very aggressive use of audio processing (Orban Optimod and similar devices).
Griffin is wrong. See page 56 in the PDF document here.
Re:I like it, but I also have questions and doubts
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NASA's New Shuttle
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· Score: 2, Informative
NASA have needed a heavy lifter ever since they (foolishly) retired the Saturn V.
Foolishly? Last time I checked, money didn't grow on trees. The Saturn V was very expensive to build and launch. That was a major reason why it was retired, NASA couldn't afford to operate it after its budget was slashed.
It's called engineering. You build a reliability model of the system and evaluate it. What's the probability of component X failing and what are the effects if it does fail. NASA already has a comprehensive reliability model for the Space Shuttle.
DES, and its variants, have the advantage of not having succumbed to decades worth of cryptanalysis. AES may be better, but it is relatively new, and hasn't received the same amount of cryptanalysis as DES. New isn't always better.
Like the song says, "Freedom is just another word for nothing left to lose". Threats of lawsuits and huge fines are not going to be effective against people with no assets.
What happens in civil court when you show up and tell the judge that you can't afford to hire a lawyer?
Congratulations, you've discovered why some people insist on using standardized languages with multiple implementations, even though X has all those pretty bells and whistles.
Remember RTOS is all about gaurenteeing time slices to all devices. It basically says you will get a time slice of at least x ms a minimum of every y ms.
That's just one way of designing a real-time OS. The goal is for all tasks to meet their deadlines. There are many ways to do that, including conventional priority-based scheduling.
What many IT admins forget is that their job is to facilitate the operations of the company, not to run the world's most secure network. You're damn right that I'm going to complain to management when I need X to do my job, and there's some pencil-neck geek in IT who, without a thought, always says "NO" to any request.
Lord Kelvin estimated the age of the Earth at about 20-40 million years, based on the science (thermodynamics) of his day, and how long it should have taken for the Earth to cool to its current state. He didn't, and couldn't have, taken into account decay heat from radioactive elements.
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JDAMs have GPS receivers.
The last time I checked, cesium was still the overwhelming choice for primary frequency/time standards. Rubidium standards were smaller and cheaper, with poorer performance. Hydrogen masers had better short-term stability than cesium, but poorer long-term stability.
The Soviet Union was reported as having developed and deployed ICBM warheads for the dispersal of weaponized smallpox virus and other biological agents over American cities.
France, China, Russia and the UK have ICBMs with nuclear warheads in operational service. Israel probably has IRBMs with nuclear warheads.
See GPS Modernization.
i've yet to see a frequency agile transponder. Not that it isn't possible, but all of the ones that I've seen are fixed frequency.
Cite?
Precursors and dual-use technology are not the same thing as chemical weapons. The same thing applies to bacterial cultures and biological weapons.
But the worst was our use of cluster bombs over neighborhoods during "shock and awe."
Cite?
There's a big difference between a 50 cent radio and a good radio. A good radio requires additional components, shielding, weight, space, and power. As usual, there's no free lunch.
The Spanish Flu was noted for killing healthy young people, the reverse of the normal pattern of killing the very young and the very old. It was also damn fast. You could be healthy one day and dead the next.
No, it was originally funded to share resources among research institutions.
Even if you find a station with a format that doesn't suck, there is a high probability that the station mangles the audio with very aggressive use of audio processing (Orban Optimod and similar devices).
I always enjoy being flamed by some idiot who makes numerous gross errors in his "corrections".
Griffin is wrong. See page 56 in the PDF document here.
Foolishly? Last time I checked, money didn't grow on trees. The Saturn V was very expensive to build and launch. That was a major reason why it was retired, NASA couldn't afford to operate it after its budget was slashed.
It's called engineering. You build a reliability model of the system and evaluate it. What's the probability of component X failing and what are the effects if it does fail. NASA already has a comprehensive reliability model for the Space Shuttle.
DES, and its variants, have the advantage of not having succumbed to decades worth of cryptanalysis. AES may be better, but it is relatively new, and hasn't received the same amount of cryptanalysis as DES. New isn't always better.
What happens in civil court when you show up and tell the judge that you can't afford to hire a lawyer?
Congratulations, you've discovered why some people insist on using standardized languages with multiple implementations, even though X has all those pretty bells and whistles.
Niklaus Wirth designed Pascal. Anders Hejlsberg wrote a number of popular Pascal compilers, such as Turbo Pascal.
Just like we should always put out forest fires. It's that sort of fuzzy-headed thinking that has caused many of our current environmental problems.
That's just one way of designing a real-time OS. The goal is for all tasks to meet their deadlines. There are many ways to do that, including conventional priority-based scheduling.
What many IT admins forget is that their job is to facilitate the operations of the company, not to run the world's most secure network. You're damn right that I'm going to complain to management when I need X to do my job, and there's some pencil-neck geek in IT who, without a thought, always says "NO" to any request.
See Lord Kelvin and the Age of the Earth (PDF).
You might be more impressed if you learned basic arithmetic.