“The massive 100-metre-square dishes slowly rotate, following the sun. Light clicks and taps…” (http://www.theguardian.com/environment/2015/may/13/could-this-be-the-worlds-most-efficient-solar-electricity-system)
Those noisy rays. Next thing wind will be flashing.
“The winter sun for the first time reached the [Norwegian town of Rjukan’s] market square, thanks to three giant mirrors placed on a mountain.” (http://www.theguardian.com/world/2013/oct/30/giant-mirrors-first-winter-sun-norway-rjukan)
Having just experienced our first power blackout of winter, I’m now saving up foil wrappers.
Glass “made from niobium oxide, which darkens when exposed to current,” and coated with “nanoscale crystals of indium tin oxide” which absorb heat-producing radiation when exposed to current, allows electrical control of the light and heat transparency of windows. (http://www.nature.com/news/smart-glass-blocks-heat-or-light-at-flick-of-a-switch-1.13558)
Electrified windows won’t have a fingerprint problem either.