Tonight on NOVA: Ghosts of Machu Picchu
(Image of Machu Picchu courtesy of Martin St-Amant – Wikipedia.)
Airing tonight (February 2, 2010) at 8pm on PBS stations: NOVA’s Ghosts of Machu Picchu. Set your DVRs now! If you miss the program, it will be streaming online starting February 3.
Machu Picchu is an Inca engineering marvel: located 8,000 feet above sea level, it contains [...]
Art from Electricity
Photo: Stoneridge Engineering
Lichtenberg figures are the branching patterns formed by electrical discharges, discovered by 18th Century German physicist Georg Christoph Lichtenberg. He captured the images in dust on charged plates, but in the 20th Century, laboratories used solid blocks of acrylic, such as the one pictured above. “Captured Lightning” was created by shooting five million [...]
