A holograph of itself All [physical properties of matter] derive from the different patterns of the interaction of electrons and photons within the fields of the positively charged atomic nuclei, stabilized in a particular morphology by the interaction of the levels themselves. Matter is a holograph of itself in its own internal radiation. Matter versus Materials: A Historical View physics
Reality just seems to go on crunching I once met a fellow who thought that if you used General Relativity to compute a low-velocity problem, like an artillery shell, General Relativity would give you the wrong answer—not just a slow answer, but an experimentally wrong answer—because at low velocities, artillery shells are governed by Newtonian mechanics, not General Relativity. This is exactly how physics does not work. Reality just seems to go on crunching through General Relativity, even when it only makes a difference at the fourteenth decimal place, which a human would regard as a huge waste of computing power. Physics does it with brute force. No one has ever caught physics simplifying its calculations—or if someone did catch it, the Matrix Lords erased the memory afterward. Eliezer Yudkowsky, Rationality: From AI to Zombies physics
Corpuscles of nothing and atoms of something The structure of matter devolved ultimately into the intimate coexistence of something like corpuscles of nothing and atoms of something, segregating through the accidents of history to yield regions differing in density intimately interwoven on different scales. The experience of the world as well as human perception and analysis of any part of it is a matter of the angular scale of resolution and of the time necessary for making comparison between the different parts. Without such variations and without time to compare remembrances of them, nothing can be experiences. Cyril Stanley Smith, The Tiling Patterns of Sebastien Truchet and the Topology of Structural Hierarchy physicsperception
I know all about entropy Adell: I know as much as you do. Lupov: Then you know everything's got to run down someday. Isaac Asimov, The Last Question timedeathphysics
The Iridium System Several Low-Earth-Orbit (LEO) networks were proposed, but only one got off the ground: the Iridium system. The original Iridium proposal called for a "constellation" of 77 satellites, which gave the plan its name: the element iridium has atomic number 77, meaning that an iridium atom has 77 orbiting electrons. Before the satellites were launched, the constellation was scaled back to 66 active satellites, but no one wanted to change the name to Dysprosium. Brian Hayes, Infrastructure: A Guide to the Industrial Landscape physicscommunicationaerospacecosmos
Fermi Estimates and Dyson Designs An Article by Venkatesh Rao www.ribbonfarm.com A Fermi estimate is a quick-and-dirty solution to an arbitrary scientific or engineering analysis problem. Fermi estimation uses widely known numbers, readily observable phenomenology, basic physics equations, and a bunch of approximation techniques to arrive at rough answers that tend to be correct within an order of magnitude or so. The term is named for Enrico Fermi, who was famously good at this sort of thing. …It struck me that there is counterpart to this kind of thinking on the synthesis side, where you use similar techniques to arrive at a very rough design for a complex engineered artifact. I call such a design approach Dyson design, after the physicist Freeman Dyson, who was one of the best practitioners of it (not to be confused with inventor James Dyson, whose designs, ironically, are not Dyson designs). designphysics
Situationist Theses on Traffic An Essay by Guy Debord www.cddc.vt.edu Two cars per familyTo form an integrated human milieuA matter of opposing the automobile urbanism
Two cars per family A MISTAKE MADE by all the city planners is to consider the private automobile (and its by-products, such as the motorcycle) as essentially a means of transportation. In reality, it is the most notable material symbol of the notion of happiness that developed capitalism tends to spread throughout the society. The automobile is at the center of this general propaganda, both as supreme good of an alienated life and as essential product of the capitalist market: It is generally being said this year that American economic prosperity is soon going to depend on the success of the slogan “Two cars per family.” transportationcapitalism
To form an integrated human milieu EVEN IF, during a transitional period, we temporarily accept a rigid division between work zones and residence zones, we must at least envisage a third sphere: that of life itself (the sphere of freedom and leisure — the essence of life). Unitary urbanism acknowledges no boundaries; it aims to form an integrated human milieu in which separations such as work/leisure or public/private will finally be dissolved. But before this is possible, the minimum action of unitary urbanism is to extend the terrain of play to all desirable constructions. This terrain will be at the level of complexity of an old city. worklife
A matter of opposing the automobile IT IS NOT a matter of opposing the automobile as an evil in itself. It is its extreme concentration in the cities that has led to the negation of its function. Urbanism should certainly not ignore the automobile, but even less should it accept it as its central theme. It should reckon on gradually phasing it out. In any case, we can envision the banning of auto traffic from the central areas of certain new complexes, as well as from a few old cities.