They may be doing that to keep the electric bill low for their transmitter. A VHF transmitter gets equivalent coverage with much less power when compared to a UHF transmitter.
The transition is to digital, not to high-definition. That $80 TV receiver has an ATSC tuner that will receive any digital signal and convert it, if necessary, to 480i. It's all you need to watch OTA TV for the foreseeable future.
I think that system was used on early radio-controlled model airplanes. They called it a bang-bang servo. An appropriate name for your mother-in-law's style of driving:).
They taught me the "2-second rule" when I took Driver's Education, back in the stone age. They also taught us not to get fixated on the car immediately ahead of you, try to watch ahead of that car, so that you can anticipate what is going to happen. This helps smooth out the speed variations in stop and go traffic.
I recently bought a digital camera that included a photo printer as part of the package. I was shocked to see that the included ink cartridge was listed as containing 2.5 ml of ink. That's about 1500 ink cartridges per gallon. I wish I had a racket like that.
Nuclear weapons have a unique signature, which isn't present in conventional explosions. There are many spacecraft in orbit that have sensors designed to detect the atmospheric detonation of a nuclear weapon.
Would it really make a difference? Say it has a mass of 160,000 tons and impacts at 17 km/s, that's 5 MT of kinetic energy. It doesn't matter if it's made of tungsten or goose down. Almost all of that kinetic energy is going to be converted into blast and thermal energy.
Look-up time domain, frequency domain, and the Fourier transform. Then read an introduction to digital signal processing. Those "jaggies" are eliminated by the reconstruction filter.
Do you think that a phonograph cartridge has infinite bandwidth? Well, it doesn't. Just like any electromechanical device, it has its limits. The frequency response rolls off at both the low-end and high-end. A high-quality modern cartridge, like the Shure M97xE, is specified as "essentially flat" from 20-22000 Hz, with 25 dB of channel separation at 1000 Hz. Any frequency components outside those limits are going to be severely attenuated or non-existent. That's assuming they survived the mastering and cutting process.
A properly mastered CD is superior in every respect to the best vinyl. Don't listen to the self-proclaimed audiophiles who think their subjective feelings are superior to rational engineering.
Stop blaming Detroit for the poor choices of you and your neighbors. There is no conspiracy to prevent people from buying efficient cars. They just don't sell that well in America. I can walk out into any parking lot and see large numbers of SUVs and trucks owned by people who will never use them for their intended purpose. For many of them, it's a fashion statement. People like driving over-powered land yachts.
If we were really serious about cutting gasoline consumption, we would take a serious look at land use and zoning, so that people didn't have to drive such long distances to get to work or shop.
In my experience, thicknet was very reliable. It was installed by people who knew what they were doing and was never touched by the average cow-orker. Thinnet was the reliability nightmare. Many points of failure coupled with random physical abuse and reconfiguration errors.
For some people in rural areas, Walmart may be the only practical choice. Some of my relatives used to make semi-annual shopping expeditions to the nearest big city, or order it out of the Sears catalog.
It's nothing new. Otherwise well-mannered women turning into back alley brawlers during a big department store sale has been a standard joke since the 1950s.
Sometimes it's needed. If a physician doesn't keep up with the advances in his field, he can unnecessarily kill or injure his patients. I was reminded of this while watching an old biographical movie on the life of Louis Pasteur. It portrayed the old "blood and guts, soap is for wusses" school of medicine.
Many people who are interested in mathematics do not qualify for an academic license. The existing license fees are way too expensive for most individuals and many organizations.
In general, there is no legal obligation to report possible criminal activity to the police. What makes this case different?
Besides, the child pornography laws are morally bankrupt. They don't criminalize the sexual abuse of children, they criminalize the possession of photographs and other material that society has deemed distasteful.
You are asking the wrong question. The relevant parameter isn't power, it's the energy of the photons. Photon energy is inversely proportional to wavelength. That's why short-wavelength radiation like gamma rays and x-rays are a hazard.
What will get the trucking companies' attention? Take their trucks off the road. Impound them and make them wait a week or two before they get them back. Make them talk to a judge and request the release of their truck.
Around here, the surest way to make all trucks disappear is for the state police to setup a roadside weight and safety inspection checkpoint.
There's always a learning curve for consoles. It takes a number of years for developers to learn how to fully exploit the console's hardware. That helps offset the increasing obsolescence of a fixed hardware configuration.
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They may be doing that to keep the electric bill low for their transmitter. A VHF transmitter gets equivalent coverage with much less power when compared to a UHF transmitter.
The transition is to digital, not to high-definition. That $80 TV receiver has an ATSC tuner that will receive any digital signal and convert it, if necessary, to 480i. It's all you need to watch OTA TV for the foreseeable future.
You can get a 13" CRT SDTV for $80. It may not impress your neighbors, but it's a perfectly good TV set.
There's a 4 MHz gap (72-76 MHz) in between channel 4 and channel 5.
I think that system was used on early radio-controlled model airplanes. They called it a bang-bang servo. An appropriate name for your mother-in-law's style of driving :).
They taught me the "2-second rule" when I took Driver's Education, back in the stone age. They also taught us not to get fixated on the car immediately ahead of you, try to watch ahead of that car, so that you can anticipate what is going to happen. This helps smooth out the speed variations in stop and go traffic.
I recently bought a digital camera that included a photo printer as part of the package. I was shocked to see that the included ink cartridge was listed as containing 2.5 ml of ink. That's about 1500 ink cartridges per gallon. I wish I had a racket like that.
Nuclear weapons have a unique signature, which isn't present in conventional explosions. There are many spacecraft in orbit that have sensors designed to detect the atmospheric detonation of a nuclear weapon.
Would it really make a difference? Say it has a mass of 160,000 tons and impacts at 17 km/s, that's 5 MT of kinetic energy. It doesn't matter if it's made of tungsten or goose down. Almost all of that kinetic energy is going to be converted into blast and thermal energy.
Look-up time domain, frequency domain, and the Fourier transform. Then read an introduction to digital signal processing. Those "jaggies" are eliminated by the reconstruction filter.
A properly mastered CD is superior in every respect to the best vinyl. Don't listen to the self-proclaimed audiophiles who think their subjective feelings are superior to rational engineering.
If we were really serious about cutting gasoline consumption, we would take a serious look at land use and zoning, so that people didn't have to drive such long distances to get to work or shop.
In my experience, thicknet was very reliable. It was installed by people who knew what they were doing and was never touched by the average cow-orker. Thinnet was the reliability nightmare. Many points of failure coupled with random physical abuse and reconfiguration errors.
Wouldn't SMS help with that? I'd think that one SMS message would use a tiny fraction of the resources needed for a short voice call.
For some people in rural areas, Walmart may be the only practical choice. Some of my relatives used to make semi-annual shopping expeditions to the nearest big city, or order it out of the Sears catalog.
It's nothing new. Otherwise well-mannered women turning into back alley brawlers during a big department store sale has been a standard joke since the 1950s.
Sometimes it's needed. If a physician doesn't keep up with the advances in his field, he can unnecessarily kill or injure his patients. I was reminded of this while watching an old biographical movie on the life of Louis Pasteur. It portrayed the old "blood and guts, soap is for wusses" school of medicine.
Many people who are interested in mathematics do not qualify for an academic license. The existing license fees are way too expensive for most individuals and many organizations.
Besides, the child pornography laws are morally bankrupt. They don't criminalize the sexual abuse of children, they criminalize the possession of photographs and other material that society has deemed distasteful.
Doesn't the FAA already have procedures in place for unmanned research balloons? I'd think the issues would be similar.
You are asking the wrong question. The relevant parameter isn't power, it's the energy of the photons. Photon energy is inversely proportional to wavelength. That's why short-wavelength radiation like gamma rays and x-rays are a hazard.
Very high exposure levels, like being in the wrong place near a high-power radar, can produce cataracts.
Around here, the surest way to make all trucks disappear is for the state police to setup a roadside weight and safety inspection checkpoint.
McIntyre v. Ohio Election Commission
There's always a learning curve for consoles. It takes a number of years for developers to learn how to fully exploit the console's hardware. That helps offset the increasing obsolescence of a fixed hardware configuration.