This blog has the objective to teach students from different schools and univercities. This blog has information of different science topic, yes but also it contains music videos and other stuff. Hope you like it
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jueves, 19 de agosto de 2010
Electromagnetism: the production of magnetism by electricity and the production of electricity by magnets.
Electromagnetic spectrum: all the wavelengths of visible and invisible light in order from short (gamma rays) to long (radio).
Laser: a device that produces a thin stream of light of just a few close wavelengths.