Curated OER
Black Holes...III
In this black holes worksheet, students use a formula for time dilation which causes delays in events that occur near the black hole. They solve 6 problems using the equation.
Curated OER
Black Holes....II
In this black hole worksheet, students use the equation for time dilation to solve 8 problems including determining the time it takes to receive a GPS signal from space, the time delay for the GPS-Earth system, the distance a radio...
Stanford University
Stanford Univ/gravity Probe B/relativity Q&a
Click "Relativity Q & A". Over 200 questions and answers dealing with relativity (special and general), answered by NASA scientist Dr. Sten Odenwald. Answers are generally one paragraph, very clear and coherent.
University of New South Wales (Australia)
University of New South Wales: Einstein Light
Einstein Light highlights the Theory of Special Relativity and related topics. Learn how Galileo, Maxwell, and Einstein contributed to our knowledge of relativity, electricity, magnetism, and time by watching fun, interactive modules.
Stanford University
Stanford University: Conventionality of Simultaneity
This site from Stanford University is on the topic of simultaneity in relativity.
University of Toronto (Canada)
Harrison/special Theory of Relativity
This page provides an incredibly detailed description of Albert Einstein's Special Theory of Relativity. Definitely an excellent website with great pictures and examples!
Libre Text
Libre Texts: Physics: Distortion of Space and Time
If the speed of light remains a constant then time and distance change. Oh, it can be confusing! This text will help clear up the confusion. Discussion questions should serve to reinforce comprehension.and exercises
Fourmilab Switzerland
John Walker: C Ship: The Dilation of Time
A good mathematical account of what happens to time as you approach c: the speed of light. Also provides a rather a fascinating video (fly through the Lattice) - don't miss it. Take some time and explore this site.
Massachusetts Institute of Technology
Mit: Open Course Ware: Courses: Physics: Introduction to Special Relativity
College-level electrical physics course highlighting Einstein's Special Theory of Relativity. Course introduces the physics of Lorentz contraction, time dilation, the "twin paradox", and E=mc2. Course features suggested readings,...
Georgia State University
Georgia State University: Hyper Physics: Special & General Relativity
This site from the Georgia State University provides an interesting chart form of the ideas of relativity. Column 1 - Idea, Column 2 - Experiment. Each item is linked to its own page of explanation, which is well done. A nice type of...
American Museum of Natural History
American Museum of Natural History: Resources: Time Dilation Equation
Using an example of light bouncing back and forth between two mirrors in a rocket, time dilation is explained in this resource. Step-by-step calculations using Einstein's time dilation equation are shown.
American Association of Physics Teachers
Com Padre Digital Library: Open Source Physics: Twin Paradox Program
This model permits manipulation of variables in order to observe the effects of time dilation on twin objects, one moving and one not, as shown in a spacetime diagram.
TED Talks
Ted: Ted Ed: Is Time Travel Possible?
Time travel is a staple of science fiction stories, but is it actually possible? Colin Stuart imagines where (or, when) this fascinating phenomenon, time dilation, may one day take us. [5:04]
Other
Uc Riverside: Twin Paradox
To make sense of this, you have to first see the Twin Paradox: Introduction, which is the special relativity version and is linked to this page. This general relativity explanation views the paradox from a gravitational point of view.
University of Virginia
University Virginia/time Dilation: A Worked Example
Here's a solved problem in time dilation. It's still not easy to follow, but it's doable. The math is not difficult, but the mathematical thinking is demanding.
Bartleby
Bartleby.com: Einstein "Relativity: The Special and General Theory"
This page presents the actual text of Albert Einstein's book "Relativity: The Special and General Theory." Just click on the chapter titles to read the text.
Walter Fendt
Walter Fendt: Apps Zur Physik
This site, in German, offers numerous apps that illustrate common physics principles. Apps are organized into categories: mechanics, oscillations and waves, electrodynamics, optics, thermodynamics, the theory of relativity, physics of...
Science Struck
Science Struck: Does the Fourth Dimension of Time Exist?
A decent explanation of the concept of time as the fourth dimension. The author discusses Einstein's theory of special relativity and the idea of space-time.
CK-12 Foundation
Ck 12: Physics: Relativity Study Guide
Review your understanding of relativity with this study guide.