Sam Harrelson



At that time, Bent Stumpe was an electronics engineer, newly recruited to work on developments for the SPS Central Control room. One of the things his supervisor asked him to build as soon as possible was a device to control a pointer on a screen, also called a tracker ball.

The bowling balls – CERN Bulletin


Fascinating how revolutionary objects often get their start as very practical ideas. 



Posted: 05.23.2010

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