Articles on "Electricity" Why three prongs?Why do wall outlets have three holes? "Grounding" and safety. Right Angle CircuitryDo Lenz' Law and the Right Hand rule still work... after you've been turned INSIDE OUT by that greasy black Fog? "Static Electric" misconceptionsA list of things which gave me a warped view of Electrostatics. Speed of "Electricity"? Triboelectric Series If a cat gets trapped in a clothes dryer full of nylon pantyhose, which way do the electrons flow? Where does EM energy flow in a circuit? How Scientists Define the word "Electricity" Quotes from J.C. Barriers to Understanding ElectricityTwenty misconceptions which prevented me from understanding simple electrical science as a student. "Static" Electricity is really just high voltage.Scuff on the rug, then measure your body voltage. Electricity mistakes and 'nitpicking' also How SHOULD we teach Electricity? "Static" sparks Doorknob sparks and zapping yourself on the car door... and people who suffer from an "electric shock" disease.
Physics | Main Richard Feynman is a hero of mine. If you like physics, you should get to know his work. You can find a list of Feynman resources here. A note on how I teach mechanics The kinematic equations are commonly presented and used in the mechanics portion of introductory physics courses. The problem I have with introducing them too early is that they lead to a rote approach to problem solving that in the end won't serve you well in your study of physics. Instead, I strongly suggest that you solve every problem as if you were "re-inventing the wheel" every time. Think about problems in the simplest terms: What is happening physically? You'll find that in no time, as you repeat similar kinds of problems and as you notice patterns, that you'll start to take shortcuts. All of the problems solved in problem sets and examples in this section are solved using this approach.
News Friday, January 10, 2014 The Engaged Learner is a new CPD course from tutor2u that is packed full of practical ideas to improve the quality of teaching and learning within every classroom. The Engaged Learner will provide teachers with an amazing collection of resources and strategies that can be used immediately within the classroom allowing teachers to deliver more creative, effective and outstanding lessons During the day we will be looking at: An array of bellwork and starter activities to inspire and engage learners from the moment they enter the classroom;Plenaries allowing teachers to effectively review student progress against the learning objectives;Questioning techniques to expand and deepen student learning Strategies for whole-class, individual, and group-work including activities to promote collaborative learningWinning techniques to promote higher order thinking and independent learningread more...» Monday, December 30, 2013 zondle's users were busy in 2013 too. New feature.
It's Okay To Be Smart Dimensions Home A film for a wide audience! Nine chapters, two hours of maths, that take you gradually up to the fourth dimension. Mathematical vertigo guaranteed! Click on the image on the left to watch the trailer ! Free download and you can watch the films online! The film can also be ordered as a DVD. This film is being distributed under a Creative Commons license. Now with even more languages for the commentary and subtitles: Commentary in Arabic, English, French, German, Italian, Japanese, Spanish and Russian. Film produced by: Jos Leys (Graphics and animations) Étienne Ghys (Scenario and mathematics) Aurélien Alvarez (Realisation and post-production) schoolphysics
The largest Free Internet Database about Cost of Living, Housing Indicators and many other informations about cities and countries! Numbeo is the world’s largest database of user contributed data about cities and countries worldwide. Numbeo provides current and timely information on world living conditions including cost of living, housing indicators, health care, traffic, crime and pollution. Numbeo is a collection of Web pages containing numerical and other itemizable data about cities and countries, designed to enable anyone to contribute or modify content. Numbeo uses the wisdom of the crowd to obtain the most reliable information possible. Numbeo then provides you with a statistical analysis of the data collected. 4,066,631 prices in 6,991 cities entered by 447,697 contributors
10 Ways I Use Technology to Learn Talking to smart people at Startup Weekend SFO During the NYTimes conference this week a tweeter got frustrated with the old white men on the stage, “One last time: Would the panel mind talking about how they themselves use technology to learn?” So I thought I’d respond. Write a blog worth sharing with the world every day (or at least a couple a week). Try to figure out what you learned today. Try to explain how the world works.Find or create a focus for learning. My learning with technology strategy isn’t very high tech: word processing, blog, search, email, social networking, and a spreadsheet.
IoHT :: 110+ Variations of the Second Law of Thermodynamics Questions about these second law variations? Know of other second law definitions? Copyright © Institute of Human Thermodynamics and IoHT Publishing Ltd. All Rights Reserved [1] Hippocrates (c. 440 BC). [2] Lavoisier, A. (1789). [3-4] Carnot, S. (1824). [5-8] Clausius, R. (1850). [9] Kelvin, L. (1852). [10] Kelvin, L. (1852). [11] Kelvin, L. (1852). [12] Kelvin, L. (1852). [13] Kelvin, L. (1852). the Philosophical Magazine, October, 1852; also Mathematical and Physical Papers, vol. i, art. 59. [14] Clausius, R. (1865). [15] Kelvin & Planck. (1879). [16-17] Planck. [18] Caratheodory, C. (1908). [19-21] Fermi, E. (1936). [22-23] Bridgman, P. (1941). [24] Keenan, J. (1941). [25-26] Klotz. [27] Fritz, A. (1959). [28] King, A. (1962). [29-30] Lee, J. & Sears, F. (1963). [31-32] Bazarov, I. (1964). [33] Bent, H. (1965). [34] Hatsopoulos, G. & Keenan, J. (1965). [35-37] Kern, R. & Weisbrod, A. (1967). [38] Battino, R. & Wood, S. (1968). [39] Bekenstein, J. (1971). [40-41] Lehninger, A. (1971).
La Brachistocrona | Giocando con la Gravità | Fandom powered by Wikia Il problema della brachistocrona consiste nel trovare la particolare traiettoria che un corpo, soggetto alla sola forza peso, deve compiere nel passare da un punto ad un punto posto ad una quota più bassa, che sia tale da minimizzare il tempo di percorrenza. La ricerca di questa curva può avvenire notando l'analogia con quanto avviene per la rifrazione della luce. e si trovano agli estremi di due strati di materiali diversi e di uguale spessore h. e percorre i tratti con tempi di percorrenza . . Dove con abbiamo indicato gli angoli di incidenza e di rifrazione dispetto alla normale alla superficie di separazione. con una opportuna costante. Si può generalizzare questo risultato applicando più volte ad una successione di strati contigui di uguale spessore e di materiali diversi. al una velocità e resta determinato il punto di passaggio tra ciascuno strato. al punto è dato da: allora sarà tanto piccolo quanto più è piccolo e quindi se la velocità nel primo tratto tende a zero allora Sia costante L'angolo
Filmin.pl - filmy dokumentalne online Special Relativity Special Relativity These pages are ok as far as they go, but they are missing the planned highlight, to show you what things actually look like when you travel at near the speed of light. I hope to have the opportunity to develop these pages further as time permits. Here is my opinionated Guide to Special Relativistic Flight Simulator Sites. Meanwhile, these pages comprise an animated introduction to the elements of Special Relativity. And don't miss Prasenjit Saha's Interactive Lorentz Transformations. © 1998, 1999 Andrew Hamilton. Forward to The Postulates of Special Relativity Hey, get me back to Falling into a Black Hole Unless otherwise stated, clicking on images gives you enlarged versions thereof, which may be easier to view in a classroom environment. Special Relativity: Index Andrew Hamilton's Homepage Other Relativity and Black Hole links
Suprathreshold stochastic resonance Suprathreshold Stochastic Resonance (SSR) is a variant of stochastic resonance (SR) that occurs for a specific set of conditions that are somewhat different from those of stochastic resonance. Like stochastic resonance, suprathreshold stochastic resonance describes the observation of noise enhanced behaviour in signal processing systems. Unlike conventional stochastic resonance, suprathreshold stochastic resonance does not disappear when the signal is no longer "subthreshold." Introduction Suprathreshold stochastic resonance was first demonstrated in arrays of identical threshold devices in 2000. This initial work (Stocks 2000) assumed an aperiodic random input signal (meaning that suprathreshold stochastic resonance is a form of aperiodic stochastic resonance), and stochastic resonance was shown to occur in the Shannon average mutual information between the input and output of the array. Figure 1 shows a simple example that satisfies these properties. Key theoretical results Applications
Usenet Physics FAQ Version Date: March 2013 This list of answers to frequently asked questions in physics was created by Scott Chase in 1992. Its purpose was to provide good answers to questions that had been discussed often in the sci.physics and related Internet news groups. The articles in this FAQ are based on those discussions and on information from good reference sources. They were later maintained and enlarged by Michael Weiss and Philip Gibbs. Others who have written for the FAQ are credited at the top of the items they submitted, while many more who have made smaller contributions have been thanked privately. Most of the entries that you'll find here were written in the days when the Internet was brand new. So because of their age, the FAQ entries that you'll find here have a great deal of academic credibility—but they are not always perfect and complete. This document is copyright. General Physics Particle and Nuclear Physics Quantum Physics Relativity and Cosmology Speed of Light Special Relativity