The rotational kinetic energy comes from ground-based electricity provided by solar and wind (which would eliminate the carbon footprint of rocket launches).

As a result, the carousel will have lost some of its rotational speed. That means the ball's extra kinetic energy comes from the rotational kinetic energy of the carousel.

Skenes is showcasing the next evolution in rotational training. For years, we’ve known you can build rock-solid core muscle and power up your athleticism with rotational moves.

Get Instant Summarized Text (Gist) Physicists have proposed generating electricity using Earth's rotational energy by employing a device that interacts with the Earth's magnetic field.