Above is a joke of course. Note that a girl appears on a large ball in the last frame. Actual MIT lecture can be viewed by clicking button below.
The Circuit and the Pendulum.
- At one point in a electronic resonant Tank Circuit and the current thru and thus the magnetic field of the coil go to zero and the voltage across capacitor are maximum. Thus, the kinetic energy is zero and the potential energy in E field between the plates is maximum.
- At opposite point of the oscillation the voltage across capacitor goes to zero and the current and magnetic flux of the coil a maximum. At this point kinetic energy is maximum in is stored in the magnetic H field of the coil.
- In the vacuum of space electromagnetic energy consisting of E and H fields 180 degrees out of phase propagate thru space at the speed of light.
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