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 for the 21st Century Course Overview Welcome to Physics for the 21st Century: an on-line course that explores the frontiers of physics. The 11 units, accompanied by videos, interactive simulations, and a comprehensive Facilitator's Guide, work together to present an overview of key areas of rapidly-advancing knowledge in the field, arranged from the sub-atomic scale to the cosmological. The goal is to make the frontiers of physics accessible to anyone with an inquisitive mind who wants to experience the excitement, probe the mystery, and understand the human aspects of modern physics. About This Course | Using This Site
Personal and Historical Perspectives of Hans Bethe 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) Introduction to quantum mechanics Many aspects of quantum mechanics are counterintuitive and can seem paradoxical, because they describe behavior quite different from that seen at larger length scales. In the words of quantum physicist Richard Feynman, quantum mechanics deals with "nature as She is – absurd". For example, the uncertainty principle of quantum mechanics means that the more closely one pins down one measurement (such as the position of a particle), the less accurate another measurement pertaining to the same particle (such as its momentum) must become. The first quantum theory: Max Planck and black-body radiation Hot metalwork. The yellow-orange glow is the visible part of the thermal radiation emitted due to the high temperature. Thermal radiation is electromagnetic radiation emitted from the surface of an object due to the object's internal energy. Predictions of the amount of thermal radiation of different frequencies emitted by a body. Photons: the quantisation of light show Spin .
The Everett Interpretation This FAQ shows how quantum paradoxes are resolved by the "many-worlds" interpretation or metatheory of quantum mechanics. This FAQ does not seek to that the many-worlds interpretation is the "correct" quantum metatheory, merely to correct some of the common errors and misinformation on the subject floating around. As a physics undergraduate I was struck by the misconceptions of my tutors about many-worlds, despite that it seemed to resolve all the paradoxes of quantum theory . The objections raised to many-worlds were either patently misguided or beyond my ability to assess at the time , which made me suspect (confirmed during my graduate QFT studies) that the more sophisticated rebuttals were also invalid. I hope this FAQ will save other investigators from being lead astray by authoritative statements from mentors. I have attempted, in the answers, to translate the precise mathematics of quantum theory into woolly and ambiguous English - I would appreciate any corrections. 4) [M].
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  Hippocrates (c. 440 BC).  Lavoisier, A. (1789). [3-4] Carnot, S. (1824). [5-8] Clausius, R. (1850).  Kelvin, L. (1852).  Kelvin, L. (1852).  Kelvin, L. (1852).  Kelvin, L. (1852).  Kelvin, L. (1852). the Philosophical Magazine, October, 1852; also Mathematical and Physical Papers, vol. i, art. 59.  Clausius, R. (1865).  Kelvin & Planck. (1879). [16-17] Planck.  Caratheodory, C. (1908). [19-21] Fermi, E. (1936). [22-23] Bridgman, P. (1941).  Keenan, J. (1941). [25-26] Klotz.  Fritz, A. (1959).  King, A. (1962). [29-30] Lee, J. & Sears, F. (1963). [31-32] Bazarov, I. (1964).  Bent, H. (1965).  Hatsopoulos, G. & Keenan, J. (1965). [35-37] Kern, R. & Weisbrod, A. (1967).  Battino, R. & Wood, S. (1968).  Bekenstein, J. (1971). [40-41] Lehninger, A. (1971).
And the Winner is... Many-Worlds! This is one of several shortened indices into the Quantum Physics Sequence. Macroscopic quantum superpositions, a.k.a. the "many-worlds interpretation" or MWI, was proposed in 1957 and brought to the general attention of the scientific community in 1970. Ever since, MWI has steadily gained in popularity. When a theory is slowly persuading scientists despite all academic inertia, and more and more graduate students grow up familiar with it, at what point should one go ahead and declare a temporary winner pending new evidence? Reading through the referenced posts will give you a very basic introduction to quantum mechanics - algebra is involved, but no calculus - by which you may nonetheless gain an understanding sufficient to see, and not just be told, that the modern case for many-worlds has become overwhelming. Quantum Explanations: Quantum mechanics doesn't deserve its fearsome reputation.
The Transactional Interpretation of Quantum Mechanics John G. Cramer This paper was originally published in Reviews of Modern Physics 58, 647-688, July (1986). It is copyrighted (©1986) by John G. Cramer and the American Institute of Physics and may not be reproduced without permission. See also "Generalized absorber theory and the Einstein-Podolsky-Rosen paradox", published in Physical Review D 22, 362-376 (1980), "An Overview of the Transactional Interpretation of Quantum Mechanics", published in the International Journal of Theoretical Physics 27, 227 (1988), and "Velocity Reversal and the Arrow of Time", published in Foundations of Physics 18, 1205 (1988). Note: Some browsers seem to fail in printing this paper from the HTML files. The interpretational problems of quantum mechanics are considered. Table of Contents Continue to Section 1.0 This page was created by John G.
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