Physics Simulation with Java "The Elements". A Flash animation The Periodic Table The periodic table of the chemical elements (also periodic table of the elements or just the periodic table) is a tabular display of the chemical elements. Although precursors to this table exist, its invention is generally credited to Russian chemist Dmitri Mendeleev in 1869, who intended the table to illustrate recurring ("periodic") trends in the properties of the elements. The layout of the table has been refined and extended over time, as new elements have been discovered, and new theoretical models have been developed to explain chemical behavior. The periodic table is now ubiquitous within the academic discipline of chemistry, providing a useful framework to classify, systematize, and compare all of the many different forms of chemical behavior. The table has found many applications in chemistry, physics, biology, and engineering, especially chemical engineering. The layout of the periodic table demonstrates recurring ("periodic") chemical properties.
Physics Flash Animations We have been increasingly using Flash animations for illustrating Physics content. This page provides access to those animations which may be of general interest. The animations will appear in a separate window. The animations are sorted by category, and the file size of each animation is included in the listing. Also included is the minimum version of the Flash player that is required; the player is available free from The categories are: In addition, I have prepared a small tutorial in using Flash to do Physics animations. LInks to versions of these animations in other languages, other links, and license information appear towards the bottom of this page. The Animations There are 99 animations listed below. Other Languages and Links These animations have been translated into Catalan, Spanish and Basque: En aquest enllaç podeu trobar la versió al català de les animacions Flash de Física.
Secret Worlds: The Universe Within - Interactive Java Tutorial Secret Worlds: The Universe Within View the Milky Way at 10 million light years from the Earth. Then move through space towards the Earth in successive orders of magnitude until you reach a tall oak tree just outside the buildings of the National High Magnetic Field Laboratory in Tallahassee, Florida. After that, begin to move from the actual size of a leaf into a microscopic world that reveals leaf cell walls, the cell nucleus, chromatin, DNA and finally, into the subatomic universe of electrons and protons. Once the tutorial has completely downloaded, a set of the arrows will appear that allow the user to increase or decrease the view magnitude in Manual mode. Click on the Auto button to return to the Automatic mode. Notice how each picture is actually an image of something that is 10 times bigger or smaller than the one preceding or following it. Earth = 12.76 x 10+6 = 12,760,000 meters wide (12.76 million meters) Contributing Authors David A. Questions or comments?
Transit Agencies We’ve been following the trend of transit agencies providing developer access to timetables, routes and more for some time. Big cities, like New York and Boston are on board and helping fuel new transit applications. There now seems to be more momentum, with organizations and influencers making the call for open data. StreetFilms talked to some of these people, several within transit companies themselves, and created A Case for Open Data (embedded below). One particular case study shows just how fast developers started in on projects when Boston made its data available. “If you take the model of the national weather service and apply it to the transit agencies you realize you can have just as many ways to get transit information as you do to get weather information. When we profiled the developer who is trying to open transit data earlier this year, City-Go-Round showed 91 agencies with public data. But it’s a good sign when big metros get behind open transit data. via Jehiah
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Entrevistas en la web con Wetoku | Educa con TIC Wetoku es una herramienta en línea que nos permite realizar entrevistas a distancia mediante videconferencia y grabación de sonido usando simplemente la webcam y el micrófono del PC. Cada vez adivinamos mayor potencial educativo en este tipo de herramientas donde la imagen, el vídeo y el sonido se convierten en protagonistas; y cada vez encontramos herramientas donde es más fácil gestionar ese tipo de recursos. Las videoconferencias son reuniones virtuales que se establecen a través de Internet entre participantes que trabajan o se encuentran en distintas ubicaciones físicas, cada participante se sienta ante su propio ordenador y se establece la comunicación el día y hora acordado. Wetoku es el entorno gratuito más sencillo que conozco para tal fin. Tres sencillos pasos a seguir: En primer lugar, accedemos a Wetoku y nos registramos pulsando en Sign up Para crear nuestra primera entrevista pulsamos en Pulsamos en Next (Siguiente) y nos aparecerá:
marothro Proposer une offre adaptée Meilleure adéquation géographique de l'ofrre Blabla Crise sanitaire Double Click to Edit. Limiter les pertes & gaspillages Combien d'eau par kilo de nourriture produites pas d'énergie lié au transport, faible besion en eau Faire un container station météo Formation des agriculteurs aux nouvelles technos Réglementation Faire un container dans une structure différente Se tenir au courant des évolutions du marché Empreinte Carbonne Rédiger des articles de consells Faire un contenaire modulable avec des Kits de culture Conteneur d'appartement / balcon Maintenir un site fiable et performant Problème de place Utilisation des nouvelles technologie Mettre une ruche dans chaque box Terre ou climat non adéquat Urbanisation Filtration de l'eau de pluie par la box Adresser la culture des insectes destinés à être consommés Rappeler les particuliers qui n'ont pas fini leur passage d'annonce Faire un container collaboratif ou libre d'accès publique Population +70% d'ici 2050 Aides Européennes?
Elgg: fabriquer son propre réseau social 100% indépendant via l'Open Source Le projet Open Source Elgg publié la version 1.0 de son logiciel de plate-forme de réseau social: les fonctions sont alléchantes: une très bonne base comparée aux grands standards comme Facebook & Myspace. Les standards '"sociaux" supportés sont multiples: OpenId, Opensocial, oAuth, FOAF, XFN, etc... Par ailleurs, une bonne de dose de similarité visuelle (voir les screenshots ici) avec les "grands". écrit en PHP donc très facilement hébergeable à faible coût (pour "tester les eaux") Elgg représente pour moi un pas en avant dans le domaine des réseaux sociaux ouverts et indépendants, un de plus après celui de Ning qui permettait déjà de faire son propre réseau social mais sur une plate-forme "contrôlée". Il nous permettra d'être membre d'une multitude réseaux sociaux indépendants les uns des autres et correspondants à différents "casiers" de notre vie sociale sans subir les affres actuels de la redéfinition du même profil (y.c les liens avec les mêmes amis...) sur chaque réseau.