Um gato de raça Fold durante uma exposição em Bishkek (Kirguistán).EE
2016-03-26
Imagens do Mundo - Barcos à vela em Cagnes Sur Mer - France
Barcos à vela em Cagnes Sur Mer, France.
Astronomy picture of the day - 2016 March 26 - Solstice to Equinox Cubed
Image Credit & Copyright: Olivér Nagy
Explanation: This 3 month long exposure packed the days from December 22, 2015 through March 20 into a box. Dubbed a solargraph, the unconventional, unfolded picture was recorded with a pinhole camera made from a cube-shaped container, its sides lined with photographic paper. Fixed to a single spot for the entire exposure, the simple camera recorded the Sun's path through Hungarian skies. Each day a glowing trail was burned into the photosensitive paper. From short and low, to long and high, the trails follow the progression from winter solstice to spring equinox. Of course, dark gaps in the daily sun trails are caused by cloud cover. Sunny days produce the more continuous bright tracks.
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