MetaFilter posts tagged with science and Mathematics

cosmic spiral visuals

nickyskye — Fri, 28 Aug 2009 07:56:21 -0800

The Anatomy of Spiral Arms, shows how galaxies naturally evolve to form grand-design two-arm spirals. The Hubble Ultra Deep Field in 3D. A Visual Dictionary of Special Plane Curves. Spiral galaxies make up approximately 60% of galaxies in the local Universe. The Equiangular Spiral Grand Design Spiral Galaxy M81 l Barred Spiral Galaxies Are Latecomers to the Universe From SpiralZoom, an intriguing tidbit on spiral consciousness, from I am a Strange Loop Previously.

Figure 3. Basic model outbreak scenario. Susceptibles are quickly eradicated and zombies take over, infecting everyone.

brundlefly — Thu, 13 Aug 2009 12:03:37 -0800

When Zombies Attack!: Mathematical Modelling of an Outbreak of Zombie Infection [pdf] (via)

3D Mapping

netbros — Wed, 22 Jul 2009 17:44:55 -0800

Durango Bill's Home Page. With topics that include: 3D end-to-end tour of the Grand Canyon, the origin and formation of the Colorado River, and examples of river systems that cut through mountain ranges instead of taking easier routes around them in Ancestral Rivers of the World. But if geology and 3D mapping isn't your thing, Bill also entertains and informs with his evaluations of creationism and religious cultists, an energy/oil analysis, gaming probability analysis, graph and number theories and applied mathematics. Durango Bill is a busy dude.

Computable data* (conceivably knowable) about people

kliuless — Fri, 01 May 2009 06:42:19 -0800

Stephen Wolfram discusses Wolfram|Alpha: Computational Knowledge Engine - at the same time Google Adds Search to Public Data, viz: "Nobody really paid attention to the two hour snorecast" -- like a cross between designing for big data and a glossary of game theory terms -- on Wolfram|Alpha (previously), yet the veil is being lifted nonetheless: "[on] a platonic search engine, unearthing eternal truths that may never have been written down before," cf. hunch & cyc (and in other startup news...) [via] *boiling it down to that which can be computed (about the world)

Does Your Answer Seem Right?

Electric Dragon — Wed, 01 Apr 2009 03:41:39 -0800

NYT Guesstimation Quiz. Enrico Fermi estimated the yield of the Trinity A-bomb test by dropping some shredded paper. He also asked his students to estimate unusual quantities like the number of piano tuners in Chicago - to show that just about anything can be estimated without detailed knowledge.

Homework Helper

netbros — Wed, 18 Feb 2009 21:39:07 -0800

World of Science contains budding encyclopedias of astronomy, scientific biography, chemistry, and physics. This resource has been assembled over more than a decade by internet encyclopedist Eric Weisstein with assistance from the internet community. MeFi visited Weisstein's Mathworld a couple years ago.

You and Your Research

parudox — Sun, 04 Jan 2009 19:23:16 -0800

You and Your Research was a talk given by Richard Hamming in 1986. Read it if you have an interest in doing first-class work.

Reality

homunculus — Wed, 04 Jun 2008 23:40:09 -0800

The Reality Tests. "A team of physicists in Vienna has devised experiments that may answer one of the enduring riddles of science: Do we create the world just by looking at it?"

Behind Door Number One...

amyms — Tue, 08 Apr 2008 18:10:14 -0800

The Monty Hall Problem has struck again, and this time it’s not merely embarrassing mathematicians. If the calculations of a Yale economist are correct, there’s a sneaky logical fallacy in some of the most famous experiments in psychology." The NY Times' John Tierney reports on new research into cognitive dissonance as examined through the famous Monty Hall Problem. [A previous MetaFilter thread about the Monty Hall Problem: Let's Make A Deal!]

Swarm

homunculus — Tue, 13 Nov 2007 18:51:34 -0800

From Ants to People, an Instinct to Swarm. Carl Zimmer looks at the work of Iain Couzin. [Via The Loom.]

The Pope with the Robotic Head

Iridic — Thu, 01 Nov 2007 13:16:11 -0800

Gerbert D'Aurillac: mathemetician and engineer, Pope, ghost, and meddler with dark forces. The superstitious and rather insulting assumption that Gerbert's intellectual achievements could only be supernatural in nature has survived to the present day. More modern mythmakers have outed him as a disciple of The Nine, the enigmatic circle of savants and scholars who have custody over science's more dangerous secrets. Apparently they were the ones who gave him his robotic brass head.

A Map of the Cat

Poolio — Sun, 16 Sep 2007 11:04:55 -0800

Richard P. Feynman { Information Junkie → PhD → Atomic Bomber → Professor/Lecturer on Physics + Mathematical Artist [DIY] + Nanotech Knowledgist → 33.3% Nobel laureate + QEDynamic Speaker + Tiny Machinist + Challenger of Conclusions + Best-Selling Writer –X– Busted [outside Tuva] → Star Trek TNG Shuttlecraft ↓ Pepsi Black/Blue ↑ U.S. Postage Stamp } ∞

art with a lot of concept

moonbizcut — Fri, 31 Aug 2007 13:57:47 -0800

Fate, Absolute Life and Death, the Aleph, the Zeitgeist, the sinking of the Atlantis, the World Trade Center, the formation of the universe...what more could you want from art? There's probably already been a been a post on this guy, Paul Laffoley, but I should hope more people could get a glance at some of this man's work. Crazy or brilliant, you make your decision. A video from his website.

Evolution and Cooperation

homunculus — Sat, 11 Aug 2007 14:25:56 -0800

In Games, an Insight Into the Rules of Evolution. Carl Zimmer writes about Martin Nowak (previously mentioned here), a mathematical biologist who uses games to understand how cooperation evolved. [Via MindHacks.]

Kinseyian mathematics, of a kind

Blazecock Pileon — Sun, 14 Jan 2007 14:36:37 -0800

The "Darwinian paradox" of homosexuality presents the conundrum of how a potential genetic basis for homosexual behavior could provide a survival benefit to offpsring and extend through generations, when sexual reproduction would seem to place strong selection pressure against such a "gene". Recently developed mathematical models (PDF) from researchers Sergey Gavrilets and William Rice not only show how a "gay gene" might proliferate within a population, but also provides testable hypotheses, including predictions of "widespread bisexuality" (subscription req'd).

Good times, good times!

Blazecock Pileon — Tue, 21 Nov 2006 07:05:13 -0800

Autodidactic goodies on a budget: Free computer books and online lectures, seminars and instructional materials from a variety of renowned institutions.

Proofs and Pictures: The Role of Visualization in Mathematical and Scientific Reasoning

Chuckles — Sun, 20 Aug 2006 12:08:20 -0800

Proofs and Pictures: The Role of Visualization in Mathematical and Scientific Reasoning [video] "The picture is a telescope for looking into Plato's heaven." -- James Brown [cached]

The Difference Engine

slimepuppy — Wed, 26 Apr 2006 03:15:03 -0800

Charles Babbage's Difference Engines. One built in 1853. A subsequent design completed in 1991. And again in Lego. Both designs recreated in Meccano parts. [more inside]

Tangible Applications of Science

Gyan — Sat, 22 Oct 2005 17:21:13 -0800

Beyond Discovery - illustrations of the path from research to human benefit

Math You Don't Know, and Math You Didn't Know You Didn't Know.

odinsdream — Wed, 14 Sep 2005 10:39:15 -0800

Jim Loy's Mathematics Page is (among other things) a collection of interesting theorems (like Napoleon's Triangle theorem), thoughtful discussions of both simple and complex math, and geometric constructions (my personal favorite); the latter of which contains surprisingly-complex discussions on the trisection of angles, or the drawing of regular pentagons.

Similarly enthralling are the pages on Billiards (and the physics of), Astronomy (and the savants of), and Physics (and the Phlogiston Theory of), all of which are rife with illustrations and diagrams. See the homepage for much more.

If you like your geometric constructions big, try Zef Damen's Crop Circle Reconstructions.

What kind of a sculpture would Metafilter represent?

Gyan — Fri, 26 Aug 2005 03:32:24 -0800

Bathsheba Grossman: a geometric sculptor

Negative knowledge (or more precisely negative information)

kliuless — Mon, 08 Aug 2005 22:40:50 -0800

Know less than nothing!? What could negative knowledge possibly mean? In short, after I tell you negative information, you will know less... "In this week's issue of Nature, however, Michal Horodecki and colleagues present a fresh approach to understanding quantum phenomena that cannot be grasped simply by considering their classical counterparts." [via slashdot :]

The World is Bound With Secret Knots

peacay — Sun, 07 Aug 2005 11:24:52 -0800

Athanasius Kircher was the 17th century's Jesuit version of the übergeek. His scholarly attentions were drawn to egyptology, astronomy, magnetism, languages, optics, music, geology, mathematics and many many other pursuits. The "dude of wonders" invented novel machines such as the mathematical organ and magnetic clock, established one of the first museums, published about 40 academic works (with beautiful accompanying illustrations) and was globally revered as one of his time's greatest intellectuals. He is also the main link in the Voynich manuscript mystery. [MI]

Nature of Mathematical Truth

Gyan — Fri, 29 Jul 2005 10:24:24 -0800

Gödel and the Nature of Mathematical Truth : A Talk with Verena Huber-Dyson

You can't prove this title wasn't an attempt to illustrate Godel

Gyan — Wed, 29 Jun 2005 02:59:04 -0800

Godel's theorems have been used to extrapolate a great many "truths" about the world. Torkel Franzen sets the record straight in his new book Godel's Theorem: An Incomplete Guide to Its Use and Abuse. Read the introduction (PDF). If you want, check out his explanation of the theorems.