Transmission Lines Quotes

If education is always to be conceived along the same antiquated lines of a mere transmission of knowledge, there is little to be hoped from it in the bettering of man's future.

This spells opportunity for all sorts of communities: those off-grid Indian villages with their 300 million electricity-poor residents; sovereign indigenous communities such as Native Americans in the United States or Aboriginals in Australia who seek energy independence; or farmers and other users in low-density rural areas who are cursed by their low level of community demand and for whom the cost of installing transmission lines and relay stations can be extremely burdensome. In many of these cases, power delivery has been subsidized by governments, in effect by taxing urban users with higher tariffs than they would otherwise pay.

Examined in color through the adjustable window of a computer screen, the Mandelbrot set seems more fractal than fractals, so rich is its complication across scales. A cataloguing of the different images within it or a numerical description of the set's outline would require an infinity of information. But here is a paradox: to send a full description of the set over a transmission line requires just a few dozen characters of code. A terse computer program contains enough information to reproduce the entire set. Those who were first to understand the way the set commingles complexity and simplicity were caught unprepared—even Mandelbrot.

At the very least, such superconductors could reduce the waste found in high-voltage electrical cables, thereby reducing the cost of electricity. One of the reasons an electrical plant has to be so close to a city is because of losses in the transmission lines. That is why nuclear power plants are so close to cities, which poses a health hazard, and why wind power plants cannot be placed in areas with the maximum wind.

Engineers had not framework for understanding Mandelbrot's description, but mathematicians did. In effect, Mandelbrot was duplicating an abstract construction known as the Cantor set, after the nineteenth-century mathematician Georg Cantor. To make a Cantor set, you start with the interval of numbers from zero to one, represented by a line segment. Then you remove the middle third. That leaves two segments, and you remove the middle third of each (from one-ninth to two-ninths and from seven-ninths to eight-ninths). That leaves four segments, and you remove the middle third of each- and so on to infinity. What remains? A strange "dust" of points, arranged in clusters, infinitely many yet infinitely sparse. Mandelbrot was thinking of transmission errors as a Cantor set arranged in time.

So, just as all Fords rolling off the assembly line in a given week might have serial numbers beginning with the same few characters, all the network chips in a given batch would start with the same few hex digits. Some of Dinah’s chips were cheap off-the-shelf hardware made for terrestrial use, but she also had some rad-hard ones, which she hoarded in a shielded box in a drawer beneath her workstation. She opened that drawer, pulled out that box, and took out a little green PC board, about the size of a stick of gum, with an assortment of chips mounted to it. Printed in white capital letters directly on the board was its MAC address. And its first half-dozen digits matched those in the transmission coming from the Space Troll.

baseball. The intestines may fill up completely with blood. The lining of the gut dies and sloughs off into the bowels and is defecated along with large amounts of blood. In men, the testicles bloat up and turn black-and-blue, the semen goes hot with Ebola, and the nipples may bleed. In women, the labia turn blue, livid, and protrusive, and there may be massive vaginal bleeding. The virus is a catastrophe for a pregnant woman: the child is aborted spontaneously and is usually infected with Ebola virus, born with red eyes and a bloody nose. Ebola destroys the brain more thoroughly than does Marburg, and Ebola victims often go into epileptic convulsions during the final stage. The convulsions are generalized grand mal seizures—the whole body twitches and shakes, the arms and legs thrash around, and the eyes, sometimes bloody, roll up into the head. The tremors and convulsions of the patient may smear or splatter blood around. Possibly this epileptic splashing of blood is one of Ebola’s strategies for success—it makes the victim go into a flurry of seizures as he dies, spreading blood all over the place, thus giving the virus a chance to jump to a new host—a kind of transmission through smearing. Ebola (and Marburg) multiplies so rapidly and powerfully that the body’s infected cells become crystal-like blocks of packed virus particles. These crystals are broods of virus getting ready to hatch from the cell. They are known as bricks. The bricks, or crystals, first appear near the center of the cell and then migrate toward the surface. As a crystal

Every Pirate Wants to Be an Admiral IT’S NOT AS though this is the first time we’ve had to rethink what copyright is, what it should do, and whom it should serve. The activities that copyright regulates—copying, transmission, display, performance—are technological activities, so when technology changes, it’s usually the case that copyright has to change, too. And it’s rarely pretty. When piano rolls were invented, the composers, whose income came from sheet music, were aghast. They couldn’t believe that player-piano companies had the audacity to record and sell performances of their work. They tried—unsuccessfully—to have such recordings classified as copyright violations. Then (thanks in part to the institution of a compulsory license) the piano-roll pirates and their compatriots in the wax-cylinder business got legit, and became the record industry. Then the radio came along, and broadcasters had the audacity to argue that they should be able to play records over the air. The record industry was furious, and tried (unsuccessfully) to block radio broadcasts without explicit permission from recording artists. Their argument was “When we used technology to appropriate and further commercialize the works of composers, that was progress. When these upstart broadcasters do it to our records, that’s piracy.” A few decades later, with the dust settled around radio transmission, along came cable TV, which appropriated broadcasts sent over the air and retransmitted them over cables. The broadcasters argued (unsuccessfully) that this was a form of piracy, and that the law should put an immediate halt to it. Their argument? The familiar one: “When we did it, it was progress. When they do it to us, that’s piracy.” Then came the VCR, which instigated a landmark lawsuit by the cable operators and the studios, a legal battle that was waged for eight years, finishing up in the 1984 Supreme Court “Betamax” ruling. You can look up the briefs if you’d like, but fundamentally, they went like this: “When we took the broadcasts without permission, that was progress. Now that someone’s recording our cable signals without permission, that’s piracy.” Sony won, and fifteen years later it was one of the first companies to get in line to sue Internet companies that were making it easier to copy music and videos online. I have a name for the principle at work here: “Every pirate wants to be an admiral.

Since our civilization is irreversibly dependent on electronics, abolition of EMR is out of the question. However, as a first step toward averting disaster, we must halt the introduction of new sources of electromagnetic energy while we investigate the biohazards of those we already have with a completeness and honesty that have so far been in short supply. New sources must be allowed only after their risks have been evaluated on the basis of the knowledge acquired in such a moratorium. 
With an adequately funded research program, the moratorium need last no more than five years, and the ensuing changes could almost certainly be performed without major economic trauma. It seems possible that a different power frequency—say 400 hertz instead of 60—might prove much safer. Burying power lines and providing them with grounded shields would reduce the electric fields around them, and magnetic shielding is also feasible. 
A major part of the safety changes would consist of energy-efficiency reforms that would benefit the economy in the long run. These new directions would have been taken years ago but for the opposition of power companies concerned with their short-term profits, and a government unwilling to challenge them. It is possible to redesign many appliances and communications devices so they use far less energy. The entire power supply could be decentralized by feeding electricity from renewable sources (wind, flowing water, sunlight, georhermal and ocean thermal energy conversion, and so forth) into local distribution nets. This would greatly decrease hazards by reducing the voltages and amperages required. Ultimately, most EMR hazards could be eliminated by the development of efficient photoelectric converters to be used as the primary power source at each point of consumption. The changeover would even pay for itself, as the loss factors of long-distance power transmission—not to mention the astronomical costs of building and decommissioning short-lived nuclear power plants—were eliminated. Safety need not imply giving up our beneficial machines. 
Obviously, given the present technomilitary control of society in most parts of the world, such sane efficiency will be immensely difficult to achieve. Nevertheless, we must try. Electromagnetic energy presents us with the same imperative as nuclear energy: Our survival depends on the ability of upright scientists and other people of goodwill to break the military-industrial death grip on our policy-making institutions.