Scientists use Earth's rotational energy to generate electricity

In brief: A team of physicists believe it may be possible to harvest electricity using Earth's rotation through its own magnetic field, and they've published a paper involving a test that appears to validate the concept. The study, published in the journal Physical Review Research, builds on work the team conducted back in 2016 and an idea dating back to at least 1832. Using a cylindrical shell made of manganese-zinc ferrite measuring 29.9 cm in length and positioned at a specific angle (57.5 degrees), a voltage of 18 microvolts was measured. Normally, any voltage created would be canceled out by electrons rearranging themselves but this wasn't the case with the hollow cylindrical shell. When the cylinder was rotated 90 degrees, current went to zero. Rotated another 90 degrees, it returned but of opposite sign. Testing with a solid shell produced zero voltage at all orientations. The physicists took every precaution to ensure no local stimuli influenced the test. The experiment took ... Read full article.