Electricity & Electronics
epub |eng | 2015-11-15 | Author:Curt Gabrielson

A Few More Tinkering Considerations By the way, lists are basic to any tinkering operation. When we come up with a new tinkering activity at the Workshop, the first thing ...
( Category: Patents & Inventions November 16,2015 )
epub |eng | 2008-06-19 | Author:David Colbert

* * * ALTHOUGH SOUND WAVES HAD BEEN “RECORDED” IN ONE OR TWO CASES PREVIOUSLY WITH MARKINGS ON PAPER, NO MACHINERY EXISTED FOR THEIR PLAYBACK. * * * In the ...
( Category: Inventions & Inventors June 20,2015 )