WebElements Periodic Table of the Elements - StumbleUpon Chapter 3 Classical physics could not explain the spectra of black bodies. It predicted that the intensity (power emitted at a given wavelength) of emitted light should increase rapidly with decreasing wavelength without limit (the "ultraviolet catastrophe"). In the figure below, the curve labeled "Rayleigh-Jeans law" shows the classically expected behavior. However, the measured spectra actually showed an intensity maximum at a particular wavelength, while the intensity decreased at wavelengths both above and below the maximum. In order to explain the spectra, in 1900 the German physicist Max Planck (1858 - 1947) was forced to make a desperate assumption for which he had no physical explanation. E = hf (Planck's formula) where h (Planck's constant) is an exceedingly small number whose value we do not need here, and f is the frequency of vibration of the oscillator (the number of times it vibrates per second). 3.2. l=h/p where p is the momentum (mass x velocity) of the electron. 3.3. 3.4.
Calculus Integrals Math Sheet Definition of an IntegralReturn to Top The integral is a mathematical analysis applied to a function that results in the area bounded by the graph of the function, x axis, and limits of the integral. Integrals can be referred to as anti-derivatives, because the derivative of the integral of a function is equal to the function. PropertiesReturn to Top Common IntegralsReturn to Top Integration by SubstitutionReturn to Top Integration by PartsReturn to Top Integration by Trigonometric SubstitutionReturn to Top Trigonometric identities can be use with integration substitution to simplify integrals. First Trigonometric SubstitutionReturn to Top To take advantage of the property Substitute After substitution Second Trigonometric SubstitutionReturn to Top After substitute Third Trigonometric SubstitutionReturn to Top
How Time Dilation Makes Sense previous home next PDF Michael Fowler, UVa Physics, 12/1/07 “Moving Clocks Run Slow” plus “Moving Clocks Lose Synchronization” plus “Length Contraction” leads to consistency! The object of this exercise is to show explicitly how it is possible for two observers in inertial frames moving relative to each other at a relativistic speed to each see the other’s clocks as running slow and as being unsynchronized, and yet if they both look at the same clock at the same time from the same place (which may be far from the clock), they will agree on what time it shows! Suppose that in Jack’s frame we have two synchronized clocks C1 and C2 set 18 x 108 meters apart (that’s about a million miles, or 6 light-seconds). Suppose C' is synchronized with C1 as they pass, so both read zero. As measured by Jack the spaceship will take just 10 seconds to reach C2, since the distance is 6 light seconds, and the ship is traveling at 0.6c. What does clock C' (the clock on the ship) read as it passes C2?
Bugatti 16C Galibier Once existing only in concept form, Bugatti’s 16C Galibier is set to officially hit the production line. The four-door sedan will feature another high-powered engine with rumors including the W16 with 1,000 hp, or a more scaled-back 800 hp which utilizes only two turbochargers. The price of speed and comfort will set potential buyers back $1.4 USD million. Source: Autoblog altvw96 "The Alternate View" columns of John G. Cramer by John G. Cramer At the end of 1998 my wife, daughter, and I attended the Renaissance Weekend at Hilton Head Island, South Carolina. Programming at the Renaissance Weekend is rather like that of an up-scale science fiction convention, except that the panels have far more participants than SF Con panels, with each panelist allowed only a 5-minute "sound bite" to describe his or her take on the subject under discussion. An investment banker told me later that he was surprised to learn that science had so many unsolved problems. So here's my list of the top seven unsolved problems in physics and astrophysics. . This new understanding raises far more questions then it answers. The standard model of particle physics, which is called quantum chromodynamics or QCD, is in many ways an excellent theory. A new higher energy particle accelerator, the large hadronic collider or LHC, will begin operation at the CERN laboratory in Geneva around 2005. .
How To Find Product Key Of Any Software » Product Key Finder Tips How to find the product key of any software that you want..?? A product key is a unique identification number or code, used in software like operating systems and games, to prevent counterfeiting and piracy. This is a specific software program. For the most part, a product key operating system is an insignificant number, but when you need to re-install your OS, suddenly the product key becomes the code harder to find. Find Product Key Of Windows 7 A product key Windows 7 is needed to activate the system, format the Windows 7, or in the event of a system crash, re-installing Windows 7 on your computer. How to find the product key of Windows 7 The product key number for Windows 7 is a alphanumeric pattern of 25 characters, divided into 5 groups of 5 characters each. * The product key used to activate the 32-bit or 64-bit editions of Windows 7 * Product keys are also unique to the version of Windows 7 (Ultimate, Premium, Basic, 32 or 64 bits). Ways to Find Windows 7 Product Key Number Software
Einstein for Everyone Einstein for Everyone Nullarbor Press 2007revisions 2008, 2010, 2011, 2012, 2013 Copyright 2007, 2008, 2010, 2011, 2012, 2013 John D. Norton Published by Nullarbor Press, 500 Fifth Avenue, Pittsburgh, Pennsylvania 15260 with offices in Liberty Ave., Pittsburgh, Pennsylvania, 15222 All Rights Reserved John D. An advanced sequel is planned in this series:Einstein for Almost Everyone 2 4 6 8 9 7 5 3 1 ePrinted in the United States of America no trees were harmed web*bookTM This book is a continuing work in progress. January 1, 2015. Preface For over a decade I have taught an introductory, undergraduate class, "Einstein for Everyone," at the University of Pittsburgh to anyone interested enough to walk through door. With each new offering of the course, I had the chance to find out what content worked and which of my ever so clever pedagogical inventions were failures. At the same time, my lecture notes have evolved. This text owes a lot to many. i i i
Twisting Radio Waves Could Give Us 100x More Wireless Bandwidth | Light As more people stream video to their mobile devices, wireless bandwidth is becoming an increasingly precious commodity. Data traffic increased 8,000 percent in the past four years on AT&T’s network alone. In trying to avoid what the Federal Communications Commission calls a “looming spectrum crisis,” telecommunications companies are lobbying the government to assign them more spectrum space in the 300- to 3,000-megahertz range, the sweet spot for wireless communication. But Italian astrophysicist Fabrizio Tamburini says a solution may lie in making better use of the frequencies already in use. The idea is to twist radio waves like corkscrews and create multiple subfrequencies, distinguished by their degree of twistedness. The next step is to design small, cheap smartphone antennas that can transmit and receive the warped signals. References: Bo Thidé, Fabrizio Tamburini, Elettra Mari, Filippo Romanato, and Cesare Barbieri.
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.