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
How the Blog Broke the Web An Article by Amy Hoy stackingthebricks.com Homepages had a timeless qualityWhen Movable Type ate the blogosphereReverse chronology bias bloggingwww
Homepages had a timeless quality On the early web, there were thousands and thousands more personal homepages than weblogs. Homepages had a timeless quality, an index of interesting or useful or relevant things about a topic or about a person. You didn’t reload a homepage every day in pursuit of novelty. (That’s what Netscape’s What’s Cool was for!) Chronological content was in the minority. indexes
When Movable Type ate the blogosphere Here’s the crux of the problem: When something is easy, people will do more of it. When you produce your whole site by hand, from HEAD to /BODY, you begin in a world of infinite possibility. You can tailor your content exactly how you like it, and organize it in any way you please. Every design decision you make represents roughly equal work because, heck, you’ve gotta do it by hand either way. Whether it’s reverse chronological entries or a tidy table of contents. You might as well do what you want. But once you are given a tool that operates effortlessly — but only in a certain way — every choice that deviates from the standard represents a major cost. Movable Type didn’t just kill off blog customization. It (and its competitors) actively killed other forms of web production. constraintschoicetools
Reverse chronology bias Once you’ve had a taste of effortless updates, it’s awfully hard to back to manual everything. So they didn’t. And neither did thousands of their peers. It just simply wasn’t worth it. The inertia was too strong. The old web, the cool web, the weird web, the hand-organized web… died. And the damn reverse chronology bias — once called into creation, it hungers eternally — sought its next victim. Myspace. Facebook. Twitter. Instagram. Pinterest, of all things. Today these social publishing tools are beginning to buck reverse chronological sort; they’re introducing algorithm sort, to surface content not by time posted but by popularity, or expected interactions, based on individual and group history. There is even less control than ever before. There are no more quirky homepages. There are no more amateur research librarians. All thanks to a quirky bit of software produced to alleviate the pain of a tiny subset of a very small audience. That’s not cool at all. Navigation by shibboleth timequirks