How Americans Die

a blog by victor powell May 29, 2013 In probability theory, the central limit theorem (CLT) states that, given certain conditions, the mean of a sufficiently large number of independent random variables, each with a well-defined mean and well-defined variance, will be approximately normally distributed. -- Central Limit Theorem - Wikipedia which is what we see here. at every triangle, the ball has a 50/50 shot of going to the left or to the right. you can also think of it like coin flips, where the number of coin flips is (bins -1) if we assign heads to 0, and tails, 1 (or 0 for left, 1 for right as in the case of the visualization above) for 1 coin flip, the possible sums of coin flips are: so for 1 coin flip, there are 2 different possible outcomes, each equally likely. the expected percentage of the possible outcomes is then: for 2 coin flips, all possible outcomes are: so for 2 coin flips, there's only 3 different possible expected coin sums. give it a try!

Wind Map An invisible, ancient source of energy surrounds us—energy that powered the first explorations of the world, and that may be a key to the future. This map shows you the delicate tracery of wind flowing over the US. The wind map is a personal art project, not associated with any company. If the map is missing or seems slow, we recommend the latest Chrome browser. Surface wind data comes from the National Digital Forecast Database. If you're looking for a weather map, or just want more detail on the weather today, see these more traditional maps of temperature and wind.

Viral: Photo-Sharing Explosions This is a series of videos that visualizes a single piece of content being shared between hundreds of thousands of individuals on Facebook. We've tried to capture the frenetic energy surrounding three of the most shared images, all of which were photos published on George Takei's Page. Each visualization is made up of a series of branches starting from a single person. Here are the three images from George Takei featured in the videos: Marvin the Martian Ab Fab London Famous Failures The data used for these visualizations spans a three-month period from July to September and is composed of shares originating from news feed. Stamen is a design and technology studio in San Francisco specializing in maps and data visualizations.

water we eat The good news is that each one of us can also make the world a little more water secure, ready to face the needs of our peak population future. How? The answer lies in our shopping baskets. The amount of meat in our diet is crucial! The type of meat we consume is crucial! The food we waste is crucial! So, do not forget: one meat-free-day a week choose meat raised on grass do not waste food pêche :: OCEAN2012 8 juin – 31 août 2012 Deutsch English Español Français Italiano Nederlands Polski Português La surpêche vide les océans de leurs poissons. Cet été, les Semaines européennes de la pêche seront l'occasion de demander aux responsables politiques de « mettre fin à la surpêche ou ce sera la fin de la pêche ». Les politiques ont la responsabilité de prendre les décisions qui mettront fin à la surpêche ; les citoyens ont la responsabilité de les soutenir et de les encourager à prendre ces décisions. Participez La pêche européenne peut être améliorée et vous pouvez y contribuer. Vous pouvez également organiser votre propre événement et créer un motif de poisson à visage humain pour mettre fin à la surpêche. Activités en ligne Faites passer le mot en intégrant notre widget sur votre site web (en haut à droite) ou en partageant notre message sur Facebook et Twitter (#fishweeks (@OCEAN2012EU @OCEAN2012FR). Semaine européenne de la pêche 2011 vnements