Spaceships are a staple of big-screen sci-fi, from recent superhero movies back to early 20th-century films. Here are some of the all-time most iconic.

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...

The Martian' author Andy Weir leaves the Solar System behind as Ryan Gosling blasts off on a mission to save the world.

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