In the past few months TNL has gone through significant changes. Although many of those are not visible on the surface straight away, they constitute great improvements of the site. Key changes have been made especially in regard to this forum topic about books and bibliographic references.
Franz Xaver, 433 MHz, Conductive Silver on Canvas. The Length of the silver lines is calculated to correspond with 433 MHz. When em waves of that frequency pass through the painting it starts to oscillate and produce a standing wave.