What Heinrich Rudolf Hertz taught us about nothingness - CSMonitor.com

Look twice to see the image of nothing!

http://www.csmonitor.com/Innovation/Horizons/2012/0222/What-Heinrich-Rudolf-Hertz-taught-us-about-nothingness?nav=646771-csm_article-bottomRelated

Sketches from scratches:  http://Woohs.blogspot.com