March 30, 2010
Want to stay on top of all the space news? Follow @universetoday on Twitter A rail gun is a weapon that uses a magnetic field to fire projectiles instead of the traditional gun powder magazine. This technology is the first electronically powered weapon system ever proposed. If the term rail gun seems familiar to you, [...]
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September 27, 2009
The electromagnet is a device that transforms an electrical current into a magnetic field. This is done through a process called electromagnetic induction. Normally magnets fall into two categories. They can either be permanent or a temporary. In both cases a magnet is created when its smaller magnetic fields called domains are aligned in one [...]
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