Let's review a bit of physics in preparation for Part 2 of our technology transfer series on page 28. All elements in a rotating body have a measure of kinetic energy. Simply stated, this is ...

They then oriented the cylinder in a north-south direction set at a 57° angle. That made it perpendicular to both the Earth's rotational motion and the Earth's magnetic field.

In that problem, we are asked to relate the angular speed of OC to its angular position (using conservation of energy). For this problem, OC rotates about O and the disk translates without rotation.

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.

This energy comes from the gymnast’s muscles and goes into the rotational kinetic energy of his motion. Of course, if the gymnast stayed in this bent leg position, he would gain some rotation ...

The calculated moment of inertia is 5.52 × 10 −44 kg m 2, which gives a very small internal rotational kinetic energy on the order of tens of μeV. Thus, a significant contribution of KE rot ...

Physicists have proposed generating electricity using Earth's rotational energy by employing a device that interacts with the Earth's magnetic field. A cylinder made of manganese-zinc ferrite ...