2010 Jan 31
Many sectors, especially technologically-driven ones, have undergone at least one if not multiple revolutions in the last half century. Much of the technology-driven ones can be laid at the foot of two major technologies, fiber optics (for long-distance high-speed communications) and the integrated circuit, whose children include just about everything on silicon, and, in its microprocessor variant, follows Moore's Law.
Two areas that have, frustratingly, followed evolutionary, and at times very slow evolutionary, paths are transportation and portable-power.