How to catch the Sun in a jar?

Summer in the Northern hemisphere came into its own, and for Jan Koeman from the Netherlands this means one thing: it's time to open a can of beer. Koeman — astronomer at the Observatory of Philippus of Lansbergen. Every year in December, he places the empty jar photo paper, making the side of a pin hole, and — voila — the camera is ready!

These homemade camera called salagrama. Yesterday he opened a Bank, which six months ago left in the field. And that's what it showed:

"This is the movement of the Sun, captures a single six-month exposure," explains Koeman. The bottom arc was "drawn" in the December winter sun. The highest arc left by the sun on a Midsummer's eve. Accidental gaps caused by clouds.

Usually colography made of cylindrical cans, but not always. Oliver Naked from Budapest decided to try something different. "I cut the hexagons of the light-sensitive paper, glued them like a soccer ball and got golograficheskie spherical image. I had to wait six months to test the invention. And it worked!".

Translated by «Yandex.Translator»