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Physics

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This Will Mindfuck You: Simultaneity Is Relative. When Einstein first published his special theory on relativity people were flabbergasted. It couldn’t be right, they thought. How can the sequence of an event differ if you observe it from a different frame of reference? How is it possible that I see event A happening before event B, but someone else can see it the other way around? (First watch the video above) Recap: Observer A stands on a train platform. A train passes by. Going back in time Einstein proposed a 4th dimension in our reality.

According to Einstein, time moves slower for somebody in motion. His solution, then, is that both frame of references are true. 1. 2. 3. What other implications did you get out of these experiments? How white holes (might) be created. George Stimson. Home page of George Stimson Homework and Assignments: A Letter to the Alumni wherever you might be. Science and Engineering: SDA Robotics Team Video The physics of rowing (worksheet) Physics java links Black Holes Fact or Fiction? Earthquakes Possible Science and Engineering Related Projects AeroVironment Started by Paul MacCready this company is an inspiration to those who are thinking about becoming an engineer and who love a challenge. Social Studies: Course Descriptions for AP European History and Comparative Government History of Education Project (emphasis is generally on, but not limited to, the European and American experience) History and Government Resources The causes of terrorism against the United States (or western culture, for that matter) are varied and complex.

If you are interested in politics, social and environmental issues then please consider the following: (if not then please consider the following anyway): Teacher Stuff Calling all physics teachers Did you miss it Tisk! 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. Sonoluminescence. Single-bubble sonoluminescence - A single, cavitating bubble. Video of synthetic wound cavity collapsing creating sonoluminescence. Long exposure image of multi-bubble sonoluminescence created by a high-intensity ultrasonic horn immersed in a beaker of liquid History[edit] The sonoluminescence effect was first discovered at the University of Cologne in 1934 as a result of work on sonar.

In 1989 an experimental advance was introduced by Felipe Gaitan and Lawrence Crum, who produced stable single-bubble sonoluminescence (SBSL). Properties[edit] Sonoluminescence can occur when a sound wave of sufficient intensity induces a gaseous cavity within a liquid to collapse quickly. Some facts about sonoluminescence: Rayleigh–Plesset equation[edit] The dynamics of the motion of the bubble is characterized to a first approximation by the Rayleigh-Plesset equation (named after Lord Rayleigh and Milton Plesset): Mechanism of phenomenon[edit] In 2002, M. Other proposals[edit] Quantum explanations[edit] [edit] Touch Effects. Relativistic Baseball. What would happen if you tried to hit a baseball pitched at 90% the speed of light? - Ellen McManis Let’s set aside the question of how we got the baseball moving that fast. We'll suppose it's a normal pitch, except in the instant the pitcher releases the ball, it magically accelerates to 0.9c.

From that point onward, everything proceeds according to normal physics.: The answer turns out to be “a lot of things”, and they all happen very quickly, and it doesn’t end well for the batter (or the pitcher). The ball is going so fast that everything else is practically stationary. The ideas of aerodynamics don’t apply here. These gamma rays and debris expand outward in a bubble centered on the pitcher’s mound. The constant fusion at the front of the ball pushes back on it, slowing it down, as if the ball were a rocket flying tail-first while firing its engines. After about 70 nanoseconds the ball arrives at home plate. Suppose you’re watching from a hilltop outside the city.

Quantum Levitation Is Real And Its Spectacular! Video. Space Time Travel & Relativity Visualized.