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155 posts tagged math
Twenty seconds of a measured random walk trajectory for a micrometer-sized ellipsoid undergoing Brownian motion in water. The ellipsoid orientation, labeled with rainbow colors, illustrates the coupling of orientation and displacement and shows clearly that the ellipsoid diffuses faster along its long axis compared to its short axis.
Credit&source: University of Pennsylvania (Penn News)
Prove πR² using only beads and a ruler! via Minutephysics.
This is a topological similarity network of 452 NBA players during the 2010-2011 season. Players (in circles) are connected to other players by edges (lines) based on how similar they are with regard to points, rebounds, assists, steals, rebounds, blocks, turnovers and fouls, all normalized to per-minute values in the 2010-2011 season. Further, the network is colored by a player’s points-per-minute average, with blue being low and red being high.
Source: Analytics Reveal 13 New Basketball Positions, Wired
More info: Redefining the Positions in Basketball, Muthu Alagappan Ayasdi Inc, Stanford University.
Newton and Leibniz talking about their stuff.
Today Antonio Mingote died, cartoonist, artist, and academic of the Spanish language. This is my little tribute to his figure, comes from a divulgative book of Science which he performed along with a former professor of mine, José Manuel Sánchez Ron.
By the way, the book is in Google Books in Spanish here. If you know Spanish, you want to practice the language, or just see its great pictures, it worth take a look.
Doodling in Math Class: Infinity Elephants.
Amazing site from the mathemusician Victoria Hart. Well worth to take a look: vihart.com
Three-way double pendulum.
Credit: Amy Snyder, © Exploratorium
Source: Chaotic Pendulum, Physics to Go
(via wikimedia commons)