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Website
Stanford University

Stanford University: Conventionality of Simultaneity

For Students 9th - 10th
This site from Stanford University is on the topic of simultaneity in relativity.
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Unit Plan
Texas Education Agency

Texas Gateway: Fictitious Forces and Non Inertial Frames: The Coriolis Force

For Students 11th - 12th
By the end of this section, you will be able to discuss the inertial frame of reference, discuss the non-inertial frame of reference, and describe the effects of the Coriolis force.