While a change massive enough to be called a re-renaissance is unlikely, the value of "new" plays is substantial. The possibility of rediscovering part or all of a superior philosophical system could indeed cause a modern renaissance.
Diamond will be advantageous for passive cooling because the heatsink can be made much larger for the same thermal drop between the generating element and the air. The more area that can be exposed to the air and still have heat flowing through it, the more effective the heatsink will be.
Many people attempted to make a practical incandescent lamp. Edison was responsible for the first practical one. His unique contributions include the choice of filament material and the very important principle of using a high voltage design. High resistance, high voltage filaments allow the lamps to be wired in parallel, which is essential for general-purpose lighting.
The attempts of many people to discredit Edison are dishonest.
I don't like this trend to all blue lights. The use of colors to provide information (green for normal operation, red for warnings) has value. Blue doesn't contribute.
The traditional red for firetrucks was probably chosen because red is symbolic of danger. The more modern yellow is more visible. I've never seen a green one.
A little more precision is needed here. Most humans are born with features that will eventually, in the course of normal development, allow them to speak. A person can speak without imposing costs on other people. The same is not true of internet access: we are not born with wifi receivers or telephone wires, nor will we develop them naturally. Internet access requires the use of someone's money, and for this access to be acquired morally, theft of someone's effort or property must not be involved in the process. For any entity (especially government) to morally provide internet access, unanimous (not majority) permission of all those paying for that access is required. Otherwise theft is involved.
CCIR must be oversampled and the 4:2:2 format inefficient. Broadcast NTSC TV's video bandwidth is about 5 MHz. 8 bit (1 byte) samples yield 50 dB S/N. 2 x 5e6 x 3600 = 36 GB/hr. Strip out blanking times (multiply by 0.82) to get 30 GB/hr.
Filters of known frequency response can be made by knowing only their geometry. Pass the signal through several filters of different frequency responses (one at a time) and feed the output of the filter into a resistive material. Measure the temperature of the resistive material. The peak frequency of the filter which warms the resistive material the most is the (approximate) frequency being generated.
So, if you build the world's fastest transistor, then how do you know how fast it is going since it is obviously well beyond the range of your test equipment?
By heterodyning with (multiplying by) a lower frequency. Look up formula for sin(at) x sin(bt).
Note also that harmonics of a given frequency can be created by passing it through a nonlinearity.
If I recall correctly, Chartered Semiconductor used to be known as Orbit Semiconductor, and anyone who used them was screwed. Terrible yields that seemed to be caused by carelessness throughout the company.
Cable companies generally run as franchises at the pleasure of the local government. Talk to local officials and ask them to make sure that the public access stays in place. The implicit threat is that the CATV company loses their franchise if they don't co-operate.
I killed a trackball, a graphics tablet, and my computer's serial port by the simple technique of holding the trackball in my lap while I wiped the dust off my CRT. Foolish actions, bad hardware design, and bad luck are a tough combination.
What planet do you come from? Profits come from the difference between prices and costs.
Governments may have an advantage of economy of scale, but over time that will be overwhelmed by union featherbedding, corruption, giving sinecures to family members, etc.. What's missing is a profit motive to run economically and competitively.
A Mobil station I frequented about 1973 said their air hose was cut off and stolen about once every 6 months. Not much incentive for providing a free service when that happens.
The articles don't give any efficiency rating for the grass, but it's likely to be much worse than solar. The best figure I've read for plant efficiency is 7%. Grasses not specifically selected or bred for efficiency are not likely to be close to that good.
Slashdot Mirror
A transformer typically has about half its volume in iron and half in wire. Don't expect transformer volume to fall by much more than half.
While a change massive enough to be called a re-renaissance is unlikely, the value of "new" plays is substantial. The possibility of rediscovering part or all of a superior philosophical system could indeed cause a modern renaissance.
theological scholarship is an oxymoron.
Diamond will be advantageous for passive cooling because the heatsink can be made much larger for the same thermal drop between the generating element and the air. The more area that can be exposed to the air and still have heat flowing through it, the more effective the heatsink will be.
The attempts of many people to discredit Edison are dishonest.
I don't like this trend to all blue lights. The use of colors to provide information (green for normal operation, red for warnings) has value. Blue doesn't contribute.
The traditional red for firetrucks was probably chosen because red is symbolic of danger. The more modern yellow is more visible. I've never seen a green one.
You can quote mechanisms all day long, it won't change the fact that certain gas-discharge lights are more efficient than LEDs.
A little more precision is needed here. Most humans are born with features that will eventually, in the course of normal development, allow them to speak. A person can speak without imposing costs on other people. The same is not true of internet access: we are not born with wifi receivers or telephone wires, nor will we develop them naturally. Internet access requires the use of someone's money, and for this access to be acquired morally, theft of someone's effort or property must not be involved in the process. For any entity (especially government) to morally provide internet access, unanimous (not majority) permission of all those paying for that access is required. Otherwise theft is involved.
The central feature of communism is that you don't own anything, including that which you make. That is certainly evil.
CCIR must be oversampled and the 4:2:2 format inefficient. Broadcast NTSC TV's video bandwidth is about 5 MHz. 8 bit (1 byte) samples yield 50 dB S/N. 2 x 5e6 x 3600 = 36 GB/hr. Strip out blanking times (multiply by 0.82) to get 30 GB/hr.
Visible light is about 500 terahertz. We've got a long way to go yet.
Filters of known frequency response can be made by knowing only their geometry. Pass the signal through several filters of different frequency responses (one at a time) and feed the output of the filter into a resistive material. Measure the temperature of the resistive material. The peak frequency of the filter which warms the resistive material the most is the (approximate) frequency being generated.
By heterodyning with (multiplying by) a lower frequency. Look up formula for sin(at) x sin(bt).
Note also that harmonics of a given frequency can be created by passing it through a nonlinearity.
Caltech's undergrad school is about half the size of MIT's. They can be, and have to be, more selective. Better input yields better output.
In Los Angeles, the rivers are paved.
If I recall correctly, Chartered Semiconductor used to be known as Orbit Semiconductor, and anyone who used them was screwed. Terrible yields that seemed to be caused by carelessness throughout the company.
Cable companies generally run as franchises at the pleasure of the local government. Talk to local officials and ask them to make sure that the public access stays in place. The implicit threat is that the CATV company loses their franchise if they don't co-operate.
As long as you don't boost V to make the part capable of running even faster, there's no square term.
I killed a trackball, a graphics tablet, and my computer's serial port by the simple technique of holding the trackball in my lap while I wiped the dust off my CRT. Foolish actions, bad hardware design, and bad luck are a tough combination.
12.7 x 25.4 / 0.2 = 1612.9.
http://en.wikipedia.org/wiki/Dot_pitch/
It's only sad because paying more taxes allows the government to do more damage.
What planet do you come from? Profits come from the difference between prices and costs.
Governments may have an advantage of economy of scale, but over time that will be overwhelmed by union featherbedding, corruption, giving sinecures to family members, etc.. What's missing is a profit motive to run economically and competitively.
A Mobil station I frequented about 1973 said their air hose was cut off and stolen about once every 6 months. Not much incentive for providing a free service when that happens.
The articles don't give any efficiency rating for the grass, but it's likely to be much worse than solar. The best figure I've read for plant efficiency is 7%. Grasses not specifically selected or bred for efficiency are not likely to be close to that good.