when did the doctor first use a sonic screwdriver
Sonic screwdriver The sonic screwdriver was first introduced in 1968 in the story Fury from the Deep, and used twice more (The Dominators and The War Games) during the Second Doctor's tenure. It became a popular tool for the Third Doctor and Fourth Doctor. It was finally written out of the series in 1982 due to the limitations it caused when writing for the show. It then featured briefly in the 1996 Doctor Who television movie, before making a full return in the 2005 continuation of the series.
Cochlear implant The modern multichannel cochlear implant was independently developed and commercialized by Graeme Clark from Australia and Ingeborg Hochmair and her future husband, Erwin Hochmair, with the Hochmairs' first implanted in a person in December 1977 and Clark's in August 1978.[10]