Cable uses a different carrier modulation method (QAM) than over-the-air HDTV (8-VSB). Some of the new TV sets include demodulators for both QAM and 8-VSB.
This currently causes seasonal RF propagation problems in the South Atlantic due to strange effects on the ionosphere. I was told it was caused by a defect in the Van Allen Belts, and was a known problem since the 1960s.
I'm not sure if they knew why there was a defect in the Van Allen Belts. One explanation said that the Earth's magnetic core was off-center from the Earth's center of mass. If it is being caused by the early stages of a pole flip, we can probably look forward to many interesting RF propagation problems as the field fragments and reorganizes.
You've ignored the widespread deployment of HDTV in the USA over the next five years. That will create a market for game consoles with enough graphics horsepower to drive 720p and 1080i displays. It's going to be increasingly difficult to sell 480i games and consoles.
In defense of the designers, it was the first test of a solid-fuel thermonuclear device. They hadn't foreseen the increased yield caused by the transmutation of lithium-7 to tritium.
I'm still amazed that they designed and built these weapons with little more than slide rules and primitive computers.
The Soviets have said that they tested four weapons in space and the USA tested four weapons in space (Starfish Prime, Argus-1, Argus-2, Argus-3). Starfish Prime was the large thermonuclear weapon launched from Johnston Island into space on a missile.
I know those poor bastards are getting massively irradiated.
How do you know that? The prompt radiation from a nuclear detonatation has a limited range in comparison to the blast and thermal effects. A slit trench will protect you from the immediate effects of a nuclear detonation at surprising close range. The important danger is the fallout plume. If you stay out of the fallout plume (downwind area), you should not have any problems.
All of those years of subscribing to The Absolute Sound may have taught you how to discriminate among the various brands and vintages of snake-oil, but they had very little to do with science or engineering.
There have been many improvements in receiver front-end design over the last 30 years, none of which involve vacuum tubes in any way. When in the last time that you saw a professionally designed receiver that used tubes in the front-end? The early 1960s?
Maybe its a war for audiophiles, but for musicians, there is no dispute.
Only if you have an exceedingly narrow-minded definition of musician. Most of the musicians that I know use acoustic instruments. No tubes or transistors involved.
Receiver pays does make sense. The wireless subscriber is being charged for the use of the wireless network, which is expensive to maintain and operate.
Back before the invention of cellular networks, it was standard practice for the user of a mobile telephone to pay airtime charges for all calls that originated or terminated on the user's mobile telephone. A person who called a mobile telephone only paid the standard rates for a wireline telephone call to the mobile operator.
Sometimes "hello" is the appropriate way to answer the phone. You may be working for an organization that has security concerns about volunteering information to callers. An unknown caller does not need to know your name or the name of your department/organization.
When I hear someone mention "literature", I reach for my pistol.
I love to read. I've been reading novels, short stories and non-fiction since I was a young child.
My only bad experiences with reading were in school, during English classes, where boring teachers inflicted so-called classic poetry and literature on the students. Every year, they searched far and wide, looking for the dullest and dreariest examples of English literature that could be found. To make matters worse, they spent countless hours analyzing the works. It's as if the teacher brought a cute kitten to class, and spent the next few weeks dissecting it, pointing out every nerve, muscle and blood vessel to the class.
Both GSM (World) and TDMA (USA) are TDMA systems. That means that access to the channel is time sliced among the various users. Each channel is divided into 8 time slots, which are used in a round-robin fashion. That is the source of the annoying buzz in hearing aids and other devices that are sensitive to RFI. CDMA has the advantage of using lower peak power and a pseudorandom spreading code, which makes the signal look like continuous white noise. GSM/TDMA look more like radar systems, sending out periodic bursts of RF.
Why don't the British police get off their butts and chase down the instigators of these frauds? Someone who is involved in 419 fraud is likely to be involved in other criminal activities.
My astronomy professor believed that the basic problem was the low mass of Mars. This resulted in a high surface/volume ratio compared to the Earth, causing Mars to cool off more quickly and the interior of the planet solidified, shutting off its magnetic field. Combined with a lower escape velocity, this allowed most of the atmosphere to leak out into space and be stripped away by the solar wind.
Except that in most cases it isn't Nextel's fault. There are many public safety radio systems that are not designed to reliably operate in a hostile RF environment. More transmitter sites and higher quality radio equipment costs money. Doing it on the cheap saves money at the cost of coverage and reliability.
The general rule is that if the interfering transmitter is operating within FCC rules and sound technical practices, it isn't responsible for solving interference problems that are the result of deficiencies in the equipment that is suffering the interference.
Part of the VAX's reliability was due to the way that DEC wrote systems software. Years ago, I spent some time reading the source code for some DEC device drivers. It was quite an education. The engineers who wrote the device drivers assumed that the hardware was flakey crap, likely to go catatonic at any moment. There was plenty of code in there to setup abort timers for device commands, so that if the device locked up, they could hit it with a hardware reset, and retry the command. There was also plenty of code to work around known hardware and firmware bugs in the peripherals.
The story I heard was that DEC used to use UNIX as a diagnostic for VAX systems. Unlike VMS, UNIX was extremely sensitive to broken or flakey hardware. The UNIX philosophy was that if there was a hardware problem, the system paniced and you fixed the hardware. The operating system was written on he assumption that hardware problems were fatal errors.
What if the cost of "saving one child" is a billion dollars, or making life a little more miserable for the rest of society?
We could save a few children's lives every year if we banned little league baseball. Even more would live if skateboards and bicycles were banned. Reducing the speed limit to 5 mph would save many thousands of lives. Just think of how many lives would be saved if we banned unhealthy food and drink.
Some chips can be destroyed if the power supply does not apply or remove the various voltages in the correct order. Usually there is some circuitry in the power supply to sequence things correctly and to shut down all voltages if any problems are detected. The power supply could damage the motherboard if it did not shut down properly.
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Cable uses a different carrier modulation method (QAM) than over-the-air HDTV (8-VSB). Some of the new TV sets include demodulators for both QAM and 8-VSB.
Motorola called it a 16/32-bit processor. It had three 16-bit ALUs. The 68020 was the first fully 32-bit member of the 68000 family.
This currently causes seasonal RF propagation problems in the South Atlantic due to strange effects on the ionosphere. I was told it was caused by a defect in the Van Allen Belts, and was a known problem since the 1960s. I'm not sure if they knew why there was a defect in the Van Allen Belts. One explanation said that the Earth's magnetic core was off-center from the Earth's center of mass. If it is being caused by the early stages of a pole flip, we can probably look forward to many interesting RF propagation problems as the field fragments and reorganizes.
You've ignored the widespread deployment of HDTV in the USA over the next five years. That will create a market for game consoles with enough graphics horsepower to drive 720p and 1080i displays. It's going to be increasingly difficult to sell 480i games and consoles.
I'm still amazed that they designed and built these weapons with little more than slide rules and primitive computers.
The movie is worth watching. See John Wayne try to play the part of a Mongol Chieftain. Listen to some of the worst dialogue ever to grace the screen.
The Soviets have said that they tested four weapons in space and the USA tested four weapons in space (Starfish Prime, Argus-1, Argus-2, Argus-3). Starfish Prime was the large thermonuclear weapon launched from Johnston Island into space on a missile.
How do you know that? The prompt radiation from a nuclear detonatation has a limited range in comparison to the blast and thermal effects. A slit trench will protect you from the immediate effects of a nuclear detonation at surprising close range. The important danger is the fallout plume. If you stay out of the fallout plume (downwind area), you should not have any problems.
That isn't true. See here for just one example.
See Sampling Theorem.
All of those years of subscribing to The Absolute Sound may have taught you how to discriminate among the various brands and vintages of snake-oil, but they had very little to do with science or engineering.
There have been many improvements in receiver front-end design over the last 30 years, none of which involve vacuum tubes in any way. When in the last time that you saw a professionally designed receiver that used tubes in the front-end? The early 1960s?
Only if you have an exceedingly narrow-minded definition of musician. Most of the musicians that I know use acoustic instruments. No tubes or transistors involved.
Back before the invention of cellular networks, it was standard practice for the user of a mobile telephone to pay airtime charges for all calls that originated or terminated on the user's mobile telephone. A person who called a mobile telephone only paid the standard rates for a wireline telephone call to the mobile operator.
I like Alexander Graham Bell's use of "Ahoy! Ahoy!" to answer the telephone. Sadly, it never caught on.
Sometimes "hello" is the appropriate way to answer the phone. You may be working for an organization that has security concerns about volunteering information to callers. An unknown caller does not need to know your name or the name of your department/organization.
I love to read. I've been reading novels, short stories and non-fiction since I was a young child.
My only bad experiences with reading were in school, during English classes, where boring teachers inflicted so-called classic poetry and literature on the students. Every year, they searched far and wide, looking for the dullest and dreariest examples of English literature that could be found. To make matters worse, they spent countless hours analyzing the works. It's as if the teacher brought a cute kitten to class, and spent the next few weeks dissecting it, pointing out every nerve, muscle and blood vessel to the class.
Both GSM (World) and TDMA (USA) are TDMA systems. That means that access to the channel is time sliced among the various users. Each channel is divided into 8 time slots, which are used in a round-robin fashion. That is the source of the annoying buzz in hearing aids and other devices that are sensitive to RFI. CDMA has the advantage of using lower peak power and a pseudorandom spreading code, which makes the signal look like continuous white noise. GSM/TDMA look more like radar systems, sending out periodic bursts of RF.
Why don't the British police get off their butts and chase down the instigators of these frauds? Someone who is involved in 419 fraud is likely to be involved in other criminal activities.
My astronomy professor believed that the basic problem was the low mass of Mars. This resulted in a high surface/volume ratio compared to the Earth, causing Mars to cool off more quickly and the interior of the planet solidified, shutting off its magnetic field. Combined with a lower escape velocity, this allowed most of the atmosphere to leak out into space and be stripped away by the solar wind.
The general rule is that if the interfering transmitter is operating within FCC rules and sound technical practices, it isn't responsible for solving interference problems that are the result of deficiencies in the equipment that is suffering the interference.
The story I heard was that DEC used to use UNIX as a diagnostic for VAX systems. Unlike VMS, UNIX was extremely sensitive to broken or flakey hardware. The UNIX philosophy was that if there was a hardware problem, the system paniced and you fixed the hardware. The operating system was written on he assumption that hardware problems were fatal errors.
We could save a few children's lives every year if we banned little league baseball. Even more would live if skateboards and bicycles were banned. Reducing the speed limit to 5 mph would save many thousands of lives. Just think of how many lives would be saved if we banned unhealthy food and drink.
Some chips can be destroyed if the power supply does not apply or remove the various voltages in the correct order. Usually there is some circuitry in the power supply to sequence things correctly and to shut down all voltages if any problems are detected. The power supply could damage the motherboard if it did not shut down properly.
Maybe little Timmy was an idiot, and his demise will improve the gene pool.