Three Laws of Robotics card-readers in "The Caves of Steel" have a capacity of only a few kilobytes per square centimeter of storage medium. "Aurora", in particular, presents a sequence of historical developments which explains the lack of nanotechnology — a partial retcon, in a sense, of Asimov's timeline. There are three Fourth Laws written by authors other than Asimov. The 1974 Lyuben Dilov novel, "Icarus's Way" (a.k.a., "The Trip of Icarus") introduced a Fourth Law of robotics: Dilov gives reasons for the fourth safeguard in this way: "The last Law has put an end to the expensive aberrations of designers to give psychorobots
Sci Fi Investigates Sci Fi Investigates Sci Fi Investigates is a six episode reality television series featuring skeptic Rob Mariano, forensic specialist Deborah Dobrydney, archaeologist Bill Doleman, and paranormal investigator Richard Dolan, as they look at paranormal and supernatural phenomenon and try to explain them. The show debuted in October 2006 on the American SyFy channel (formerly Sci-Fi Channel) following "Ghost Hunters". There have also been two webisodes. The series documents a team of four paranormal investigators who travel to various locations around the United States and investigate various urban legends. The team uses various research methods to gather as much information as