background preloader



Related:  TecnologíaOLLI Physics

Ten Good Video Sources for Science Students and Teachers One of the great things about teaching today is the wealth of educational videos that are available on the web. No longer do we have to flip through catalogs, order a VHS cassette, wait for it to arrive, and hope that it is as good as the catalog made it sound. Now we can quickly access and screen educational videos.

Modern physics Classical physics is usually concerned with everyday conditions: speeds much lower than the speed of light, and sizes much greater than that of atoms. Modern physics is usually concerned with high velocities and small distances. The term modern physics refers to the post-Newtonian conception of physics. Put simply, modern physics deals with the underlying structure of the smallest particles in nature ("quantum" mechanics), as well as a rigorous understanding of the fundamental interaction of particles, understood as forces. Small velocities and large distances is usually the realm of classical physics. Modern physics often involves extreme conditions; quantum effects usually involve distances comparable to atoms (roughly 10−9 m), while relativistic effects usually involve velocities comparable to the speed of light (roughly 108 m/s).

Practical Physics This website is for teachers of physics in schools and colleges. It is a collection of experiments that demonstrate a wide range of physical concepts and processes. Some of the experiments can be used as starting-points for investigations or for enhancement activities. 20 brilliant things to make in a jar Via: Start saving your old jam jars! From cakes to herb gardens, pies to photo frames, and even entire meals … here are 20 fantastic things you never knew you could make with a jar. (Above: red velvet cupcakes in a jar. Get the recipe here). Via: Modern Physics: An Historical Overview of the Development of Quantum Mechanics, Quantum Field Theory, Relativity, and Cosmology This timeline is is a greatly expanded version of that presented in Wikipedia’s article on the history of quantum mechanics, with milestones in the development of Relativity, cosmology, and particle physics also included due to their overlap in attempts to construct a Theory of Everything (TOE). Where possible, I’ve included references to the original founding documents related to each development, along with links to online copies of the original articles (or English translations thereof) where available. Please note that some of these documents are accessible by subscription only. In such cases, the articles should be viewable from the networks of institutions with site license access, such as universities or larger libraries.

ChronoZoom ChronoZoom is an educational tool for teachers and students who want to put historical events in perspective. A great many resources have been created already in ChronoZoom for your enjoyment and enlightenment. Start Exploring Use ChronoZoom to get a perspective of the extensive scale of time and historical events relative to what happened around the world. Become an author yourself!

English Pronunciation If you can pronounce correctly every word in this poem, you will be speaking English better than 90% of the native English speakers in the world. After trying the verses, a Frenchman said he’d prefer six months of hard labour to reading six lines aloud. Dearest creature in creation, Study English pronunciation. I will teach you in my verse Sounds like corpse, corps, horse, and worse. Happy Birthday, Electron Electrons rule our world, but not so long ago they were only an idea. This month marks the 120th anniversary of a profound and influential creation, the electron theory of Dutch physicist Hendrik Antoon Lorentz. His electron was not merely a hypothesized elementary particle; it was the linchpin of an ambitious theory of nature.

The Open Organisation Of Lockpickers This is a repository of the most up-to-date versions of Deviant's lock diagrams and animations. Seen in all of the TOOOL educational materials and slide decks, these files are all released under the Creative Commons license. You are free to use any of them for non-commercial purposes, as long as they are properly attributed and the same freedom for others is maintained in all derivative works. Please note that these diagrams have evolved and developed over time. While Deviant is still proud of the older versions of his images, if you still have copies of legacy material they should all be replaced with the latest versions available here. Each image shown below in thumbnail form can be accessed in high resolution individually, or you can obtain the full set from the zip archive at the bottom of this page.