Physics Girl
Special Relativity and the Twin Paradox
How can just two rules of Einstein's 1905 theory of special relativity lead to seemingly paradoxical changes in the perception of time? Want exclusive updates whenever a new video is posted? Special relativity was one of the first...
Amor Sciendi
Guernica: War and Art
We discuss Picasso's great image of Guernica with help from a Subscriber, Andy Hess.
Professor Dave Explains
Relative Motion and Inertial Reference Frames
Did you know that everything is moving? Even you, as you're sitting perfectly still, because the earth is moving, and the sun, and the galaxy, and so forth. For this reason, it only makes sense to talk about the motion of some object...
Curated Video
Hawking Radiation Explained: What Exactly Was Stephen Hawking Famous For?
Hawking radiation was first discovered by English scientist Stephen Hawking in 1974. Prior to this discovery, our knowledge of black holes was very limited. It was believed that black holes were completely black and that they did not...
MinutePhysics
Immovable Object vs Unstoppable Force - Which Wins?
Take Newton's second law of motion to a new level by considering an un-acceleratable object with infinite mass. The idea is mind-blowing, but it is thoroughly explored in this clever video clip! Challenge your high school physicists by...
Curated OER
Flow Of Time, Part 4/4
The conclusion of this excellent four-part series brings modern quantum mechanics and theoretical physics into the conversation of time. Coming full circle from the music employed as an allegory of time, we return to the piano,...
PBS
Pbs Nova Online: Einstein's Big Idea
A many-faceted investigation into Albert Einstein. Includes, a Timeline, Light Stuff, Genius among Geniuses, Time Traveler, Relativity and the Cosmos, and much more. Also, Einstein Links and a Teacher's Guide are provided.
Khan Academy
Khan Academy: A Visualization of Special Relativity
Using hyperbolic geometry this video gives a unique visualization of Special Relativity. [9:35]
Khan Academy
Khan Academy: Algebraically Manipulating Lorentz Transformation
A video that explores Lorentz transformations and their practical uses. [8 min.]
Khan Academy
Khan Academy: Calculating Neutral Velocity
A video exploring how to calculate the equal speed at which both A and B could be traveling away from a 'neutral' observer. [6:44]
Khan Academy
Khan Academy: Lorentz Transformation for Change in Coordinates
Lorentz transformation for change in coordinates. [5:05]