Stanford University
Stanford University: Conventionality of Simultaneity
This site from Stanford University is on the topic of simultaneity in relativity.
Open Curriculum
Open Curriculum: Relativity and Magnetism
Understand and learn about the properties of space and time and the concept of relativity.
Read Works
Read Works: As Time Flies By
[Free Registration/Login Required] An informational text about time travel in the movies. A question sheet is available to help students build skills in reading comprehension.
Science Struck
Science Struck: Interesting Philosophical Questions About Time
Discover some of the deep questions that scientists and philosophers ask about time and some of the ideas that emerge from each one.
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.
TED Talks
Ted: Ted Ed: Does Time Exist?
Andrew Zimmerman Jones contemplates whether time is something that physically exists or is just in our heads.