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Apollo: The Alignment Optical Telescope
Can We Create Artificial Gravity?
How a quartz watch works
HOW IT WORKS: Car Transmissions (720p)
International Space Station Orbit Tracker
Lecture 1 | The Fourier Transforms and its Applications
Mechanical Principles (1930) by Ralph Steiner [4min selection]
Newton's Prism Experiment
Shrinking microscope lenses
The Engineering of a Disposable Diaper