
Check out this page with some excellent sims
http://kspark.kaist.ac.kr/Twin%20Paradox/The%20PoleBarn%20Paradox.files/Spacetime%20Diagrams.htm
Portions of the following are from CpSurf Hewitt's Companion Web Page for this chapter
Check out these four animations from the Physics Multimedia Studios showing spaceships moving past Earth at various speeds. Notice how the length of the spaceship relative to the observer changes as the ship's speed approaches the speed of light.
This Quicktime movie (4.1 MB) from the UCLA Large Plasma Device Lab shows the view of a city as seen by an observer passing over at near the speed of light
 Pole in the Barn Paradox
 Pole in the Barn Physlet(Davidson.edu)
 Length Contraction fearofphysics.com (41 seconds; includes 4 animations)
 Length Contraction  the house
 Length Contraction  by Tom Henderson  Glenbrook South High School
 Conserving Momentum: The Relativistic Mass Increase
 As an object approaches the speed of light, its mass increases without limit! What does this mean for the conservation of momentum? Find out by reading these lecture notes from Galileo and Einstein, a course taught by Michael Fowler of the University of Virginia.
 E = mc^{2}
 Hear Albert Einstein declare the equivalence of matter and energy! This historical soundbite is provided by the American Institute of Physics.
 Mass and Energy
 Read about Einstein's Box, an amusing thought experiment on the equivalence of mass and energy. This lecture is part of the Modern Physics course taught by Michael Fowler at the University of Virginia.
 Transforming Energy into Mass: Particle Creation
 What are the consequences of E = mc^{2} for particle physics? Find out by reading these lecture notes from Michael Fowler's Modern Physics.
 Relativistic Dynamics
 Part of Michael Fowler's Modern Physics lecture notes, this page provides an excellent overview of relativistic dynamics, including a derivation of relativistic kinetic energy.
 Introducing the Light Cone
 If a new theory is valid, it must account for the verified results of the old theory in the region where both theories apply. This requirement of logic is known as the correspondence principle. How does the theory of special relativity account for classical mechanics? Find out by reading this lesson from Rob Salgado's online relativity tutorial The Light Cone.  Look at this page!
more related links
 Elementary Spacetime Diagrams
 The BugRivet Paradox · · · Wrong paradox. Infinite deceleration of the rivet head is not in the realm of SR!
 The Rising Window
 The Mighty Rod Grabber
 A lightspeed Submarine, to float or to sink?
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