RT @ScienceCalendar: Nov. 23, 1869-Birthday of Valdemar Poulsen, invented storing data on a magnetic wire, ancestor of tape recorder/comput…
Tweet 23/11/2013 07:15 AM
Posted by Bolton School on 23 Nov 2013
Modified by Bolton School on 16 Sep 2023
RT @ScienceCalendar: Nov. 23, 1869-Birthday of Valdemar Poulsen, invented storing data on a magnetic wire, ancestor of tape recorder/comput…