8 天
Futurism on MSNScientists Build Device to Generate Electricity Using the Earth's RotationIn a controversial experiment, physicists investigated whether we could harness the Earth's rotational energy to generate ...
1 天
IEEE Spectrum on MSNThe Tiniest Flying Robot Soars Thanks to MagnetsA new prototype is laying claim to the title of smallest, lightest untethered flying robot. At less than a centimeter in ...
Magnetism is due to the magnetic fields around magnets. The fields can be investigated by looking at the effects of the forces they exert on other magnets and magnetic materials. Electromagnets ...
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