Entries Tagged as 'History'
Puzzle Event 4 – Who Is This? What Did He Invent?
June 3rd, 2010 · 8 Comments · History, Puzzle
In celebration of the upcoming 60th anniversary of a patent publication on an important invention on June 21, 1950, I’m posing the questions: “Who is this? What did he invent?” Leave a comment below if you know. Sorry, there’s no prize another then the kudos of being first to guess correctly. Puzzle Rules Image source: [...]
Tags: Paul Eisler·PCB
Signal Integrity in 150 B.C.
November 25th, 2009 · No Comments · History
Stereoscopic 3D imaging of gears in the Antikythera mechanism and the need to visualize electromagnetic fields and currents in 3D today.
Fifteenth Anniversary of si-list
May 16th, 2009 · No Comments · History
Retrospective on the 15th anniversary of the si-list by founder Ray Anderson.
Tags: social media
