ELECTROMAGNETIC WAVE: Waves which can travel quickly through the vacuum of outer space. But when an electromagnetic wave contacts the atoms of a material, the energy of that wave is absorbed. The absorption of energy causes the atom's electrons to undergo vibrations. The vibrating electrons then create a new electromagnetic wave with the same frequency as the first. These vibrations delay the motion of the wave through the material.This helps explain the relatively slow rate of transfer of e-mail through the wires of cyberspace compared to the higher velocity of electromagnetic waves through the vacuum of interatomic space! But for information about events on the Ancient Future horizon, nothing beats being on the Ancient Future e-mail list. Find out all the latest Ancient Future news and win free concert tickets and CDs!