Durrell Bishop's Marble Answering Machine | List of Physical .Nov 21, 2014 . In 1992, Durrell Bishop, then a student at the Royal College of Art, came up with an original answering machine design that is considered as.marble answer machen,Durrell Bishop Marble Answer Machine on VimeoFeb 14, 2011 . 1992 Marble Answer Machine. The physical visualisation of a system. This was the second of many demonstrations that simplified the.
marble answer machen