Hudson - Against The Grain
Posted 8 years ago by boyt in category: art   Comments (1)

This is a new version of homopolar motor. Is necessary that the battery with the magnets is supported on a material that conducts electricity as the tinfoil.
Posted 4 years ago by kappaz in category: science   Comments (0)

An aurora is a natural light display in the sky, particularly in the polar regions.
Posted 9 years ago by Dimaine in category: beautiful   Comments (0)