Sport and Mindomo

https://www.mindomo.com/mindmap/28042ca98bfe4a639cf09ecee985c11c

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Paul Ramzi approved...

ICT: Time-line from Alexander Piven

Here is my time-line of the first modern audio speakers!

http://www.tiki-toki.com/timeline/entry/299723/The-first-digital-speakers/#vars!panel=2995092!