Introducing ‘For Conservative Movie Lovers’
by Leo Grin
YouTube -- click here to watch in full-screen HD
A thousand years ago in Cairo, surrounded by ancient pyramids and the ghosts of lost civilizations, the great Arab scientist Alhazen conducted a peculiar optical experiment. Building on observations made by Aristotle thirteen centuries earlier, he first constructed a room, one completely shuttered from the light of the outside world, as dark as death. He then cleverly lit the space around the room with an array of bright lamps. Finally, he punched a single pinhole into one wall, just large enough to let a small beam of lamplight bleed in.
Alhazen confirmed that if you entered such a room, and sat in the darkness until your eyes had ample time to adjust, and then followed the beam of light emanating from the pinhole to where it splashed onto the wall opposite, you would be privy to an amazing, almost magical sight. As you watched, shapes and colors would begin to coalesce. Familiar forms would appear. And eventually, when your eyes had acclimated enough, you would be staring at nothing less than an exact upside-down projection of the outside world, perfect in every detail. Alhazen marveled at this, and gave the experiment an evocative name: Al-Bayt al-Muthlim, translated by later scribes into Latin as camera obscura — The Veiled Chamber. (more…)









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