Actually, the phenomenon could no longer be called an epidemic.

The new interest in them can be traced to a very American phenomenon called competition.

This phenomenon is called streaming potential and was discovered in 1859.

This is due to the phenomenon called persistence of vision.

This phenomenon is called the adaptive response hence the name.

This is due to the effect of a phenomenon called reverse use dependence.

When they are lower than the final value, the phenomenon is called "undershoot".

This phenomenon is called "The meeting of the waters" by the locals.

The phenomenon is called the Wilson effect to acknowledge his early observations.

This phenomenon is called second sight, because people who may have once needed reading glasses find that they don't need them anymore.