Vad är detta jag filmade??? (videoklipp) *Häftigt fenomen*

The first surviving mention of some of the principles behind the pinhole camera or camera obscura belongs to Mozi (470 to 390 BCE), a Chinese philosopher and the founder of Mohism. Mozi correctly asserted that the image in a camera obscura is flipped upside down because light travels in straight lines from its source. His disciples developed this into a minor theory of optics.[2][note 1]

The Greek philosopher Aristotle (384 to 322 BCE) understood the optical principle of the pinhole camera.[3] He viewed the crescent shape of a partially eclipsed sun projected on the ground through the holes in a sieve and through the gaps between the leaves of a plane tree. In the 4th century BCE, Aristotle noted that "sunlight travelling through small openings between the leaves of a tree, the holes of a sieve, the openings wickerwork, and even interlaced fingers will create circular patches of light on the ground." Euclid's Optics (ca 300 BCE) presupposed the camera obscura as a demonstration that light travels in straight lines.[4] In the 4th century, Greek scholar Theon of Alexandria observed that "candlelight passing through a pinhole will create an illuminated spot on a screen that is directly in line with the aperture and the center of the candle."