Solve a rotating-coil electromagnetism problem by deriving the induced emf from changing magnetic flux. Learn how coil area, number of turns, rotation rate, and magnetic field strength set the emf ...

How do we extract energy from space around a spacecraft? If there are differences in the speed of the solar wind or differences in flows of particles around a spacecraft or where a spacecraft is ...

For more than a century, engineers have chased new ways to turn the planet’s natural motions into usable power, from tides to ...

Marion Cromb receives funding from EPSRC grant EP/W007444/1. Hendrik Ulbricht receives funding from EPSRC (grant EP/W007444/1). Black holes are mysterious objects – there’s a lot we don’t know about ...