Jean-François Aillet fait prélever 7000 sables pour le projet "Le Solitaire... des marées" : Qui peut collecter ? Tout le monde... Tout le monde peut prélever un sable Mais... .../... "Il était une fois quatre individus qu'on appelait : TOUT LE MONDE - QUELQU'UN - CHACUN - et - PERSONNE. Il y avait un important travail à faire et on a demandé à TOUT LE MONDE de le faire. Moralité .../... Cependant, il y a toujours une exception à la règle. Si vous n'avez pas la possibilité de prélever un sable... Vous pouvez toujours aidez à faire venir les sables en transférant cet appel à tout le monde autour de vous, collègues, parents, amis, connaissances, voisins, etc., afin que chacun puisse l'envoyer à quelqu'un sans oublier personne ! Vous ne me croyez pas ? Pas plus que je ne m'attendais à recevoir ce prélèvement effectué à l'autre bout de la planète, voir le prélèvement ► N°0096, tant il est complètement et totalement hallucinant. Il faut simplement garder les pieds sur terre, même quand c'est du sable ! L'appel s'adresse donc à Pour rappel voir : 1ère Rencontre Internationale ► Mont-Saint-Michel
Nature Publishing Group : science journals, jobs, and information The Physics Classroom Math, Physics, and Engineering Applets Oscillations and Waves Acoustics Signal Processing Electricity and Magnetism: Statics Electrodynamics Quantum Mechanics Linear Algebra Vector Calculus Thermodynamics Mechanics Miscellaneous Licensing info. Links to other educational sites with math/physics-related information or java applets useful for teaching: And when you get tired of learning, here is some fun stuff: Pong Simulation Circuit-level simulation of original 1972 Pong.
This is What Happens When You Run Water Through a 24hz Sine Wave What!? How is this even possible? Because science, my friends. Brusspup’s (previously) latest video explores what happens when a stream of water is exposed to an audio speaker producing a loud 24hz sine wave. Run the rubber hose down past the speaker so that the hose touches the speaker. Brusspup did a similar experiment last year where it looked as if the water was flowing in reverse.
Ludum Dare » Rules and Guide Ludum Dare is an Online Game Jam event where people from around the world create a game in a weekend. More details here. New to the Ludum Dare website? Go here. For the October Challenge, go here. Change Log: As of August 2010 (Ludum Dare 18), Ludum Dare is now a dual event. As of August 2011 (Ludum Dare 21), Ludum Dare Jam games are now rated! As of December 2011 (Ludum Dare 22), we’ve added a new Entry Voting Category: Mood. Ludum Dare is two similar events taking place over one weekend The Competition is the familiar “make a game in 48 hours solo competition” that Ludum Dare is known for. The Jam is the new “relaxed” Ludum Dare. Ultimately, our goal with Ludum Dare is to encourage people to sit down and make something. Ludum Dare Events Ludum Dare Events are held every 4 months; Every April, August, and December. Once the date has been announced, members of the community can suggest themes. The week before the start time, members of the community can vote on their favorite themes. Judging
Constellation Exactly 1week to "Space Race - Yuri's Night 2014: Hunting Comets!" team challenge on BoincStats Hello everyone, in exactly one week the "Space Race - Yuri's Night 2014: Hunting Comets!" team challenge on BoincStats will start. There are already 14 teams in for for the Yuri's Night challenge and we hope to see more of you participating there. This is our annual team challenge to honor Yuri Gagarin, first human in space, and our own birthday. Comet Trails: An IMEX application for predicting meteor storms at spacecraft or planets AerospaceResearch.net is happy to announce the next application running on the Constellation platform, the "IMEX Cometary trails". Description: The "IMEX Comet trails" project is an ESA-funded project run at the Institute of Space Systems (IRS) at the University of Stuttgart to characterize dust trails produced by comets in the inner solar system. (click here for Youtube-video Dr. comet_trails_jupiter by aerospaceresearch.net on Flickr
"Twistor" Theory Reignites the Latest Superstring Revolution: Sc In the late 1960s the renowned University of Oxford physicist and mathematician Roger Penrose came up with a radically new way to develop a unified theory of physics. Instead of seeking to explain how particles move and interact within space and time, he proposed that space and time themselves are secondary constructs that emerge out of a deeper level of reality. But his so-called twistor theory never caught on, and conceptual problems stymied its few proponents. Like so many other attempts to unify physics, twistors were left for dead. In October 2003 Penrose dropped by the Institute for Advanced Study in Princeton, N.J., to visit Edward Witten, the doyen of today’s leading approach to unification, string theory. Expecting Witten to chastise him for having criticized string theory as a fad, Penrose was surprised to find that Witten wanted to talk about his forgotten brainchild. Penrose’s original goal was to reconsider how quantum principles apply to space and time.
NetLogo Home Page NetLogo is a multi-agent programmable modeling environment. It is used by many hundreds of thousands of students, teachers, and researchers worldwide. It also powers HubNet participatory simulations. It is authored by Uri Wilensky and developed at the CCL. You can download it free of charge. You can also try it online through NetLogo Web. Download NetLogo Go to NetLogo Web Getting Started with NetLogo Are you new to NetLogo or programming in general? The NetLogo tutorials guide you through all the basics, from loading and using models, to interacting with models with NetLogo code, and finally programming a model from scratch. When you're ready to dive deeper into NetLogo programming, check out the full NetLogo manual. The interface tab guide, info tab guide, and code tab guide which include many more details on all the core features of the software. We also have an online forum you can join to ask questions of other users and keep up to date with NetLogo. NetLogo Models