C-Ship: A short overview of special relativity, filled with relativistic ray traced images. Explains relativistic effects using a theoretical spaceship.
E=mc²: An article from the Wikipedia encyclopedia.
E=mc² before Einstein: According to University of Perugia historian of mathematics Umberto Bartocci, Olinto De Pretto published the famous formula E=mc² two years before Albert Einstein in a paper titled "Ipotesi dell’etere nella vita dell’universo" (Hypothesis of the Essence of the Universe).
E=mc² was an Italian's idea: The University of Perugia historian of mathematics Umberto Bartocci claims that a Swiss Italian named Michele Besso alerted Einstein to the writings of Olinto De Pretto who then published Pretto's mass-energy equation without giving credit.
Einstein Light: A multimedia tutorial on Special Relativity. The introductory level takes 10 minutes, but has links to over 40 explanatory pages giving greater depth and breadth.
Henri Poincaré: A Decisive Contribution to Special Relativity: Henri Poincaré set up all the basic concepts of special relativity several years before Einstein published On the Electrodynamics of Moving Bodies (Annalen der Physik vol XVII 1905 p. 891-921). This is the short version of the story.
How Did Einstein Discover Special Relativity?: Dr. John Stachel speculates on how Einstein arrived at SRT. Dr. Stachel is Professor of Physics Emeritus and Director of the Center of Einstein Studies at Boston University.
How Do You Add Velocities in Special Relativity?: Here is the formula for adding velocities in special relativity when motion occurs in a single direction.
How Stuff Works: Special Relativity: The major principles of special relativity (SR) are discussed in an accessible way, via 5 segments, to help you understand the lingo and theories involved.
Is Travel Faster Than Light Possible?: Individual photons, when tunneling through a quantum barrier, can apparently travel faster than light.
Jim Doyle's Special Relativity Pages: A growing collection of pages on special relativity, including Special Relativity in under 15 Minutes!
Relatively Simple: Special Relativity made Relatively Simple offers information and experiments about special relativity.
Relativistic contraction: Relativists consider it a very important exercise to have students decide how to measure the length of a rapidly moving object.
Relativity in its Historical Context: The discovery of special relativity was inevitable, given the momentous discoveries that preceded it.
Relativity Tutorial: An introduction to relativity using space-time diagrams.
Santa at Nearly the Speed of Light: An estimate of the speed and distances covered by Santa Claus on Christmas night. The physics is unassailable. The article is hosted on the Fermi National Accelerator Laboratory website.
Special Relativity: A brief overview of the theory of special relativity, and how it pertains to particles at SLAC (Stanford Linear Accelerator)
Special Relativity: A unit for an online relativity textbook explaining special relativistic mathematical physics.
Special Relativity: Tutorial explains about the postulates, paradox, simulaneity, time dilation, Lorentz transformation constructions, spacetime wheel, and the Fitzgerald-Lorentz contraction. Page includes some animated illustrations.
Special relativity article: From the free encyclopedia Wikipedia.
Special relativity lecture notes: A standard introduction to special relativity where explanations are based on pictures called spacetime diagrams.
Special Relativity simulator: Warp is a program that illustrates the appearance of fast moving objects due to special relativity.
The Twin Paradox in a Spatially Closed and Bounded Universe: Spatially compact spacetimes break global Lorentz invariance and define absolute inertial frames of reference.
Time Dilation: The gamma factor and time dilation can be derived using a very simple clock.