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A brief explanation why ion engines need a vacuum
An astrophysicist answers the question of what would happen to the human body in vacuum of outer space?
Fun demonstration of air pressure with shaving foam and a vacuum pump.
Make a spectroscope using a CD, a box, a tube and some tape.
Containing a brief description of how TV works, from pixels and motion to inside a cathode ray tube. Tthis excellent set of pages is interactive and is part of HowStuffWorks.com.
A Marvin and Milo activity about intertia. All you need is an egg, a glass of water, an empty smarties tube and a placemat.
Dennis Gabor (1900 - 1971) work led to the development of a number of devices including: a holographic microscope, an analogue computer, a flat thin colour television tube, and a new type of ...
Instructions on how to make a pinhole camera out of a pringles tube, and an explanation of how it works.
Description of electromagnetic waves, which move energy through empty space (a vacuum), stored as part of an electric and magnetic field.
Ever thought about how a brick of vacuum packed coffee goes soft as soon as it's opened? Understanding the behaviour of granular materials could help physicists to better understand not only coffee ...
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