In 1826 or 1827, a Frenchman named Joseph Nicéphore Niépce did something nobody had ever done before. He pointed a wooden camera out the window of his country house, opened the lens, and walked away. He came back about eight hours later to a metal plate with a faint, blurry picture of the rooftops outside - the first surviving photograph in history.
Because the exposure took so long, the sun moved across the sky during the shot. That’s why both sides of the buildings in the picture look lit up at the same time. Anything that moved during those hours - like people, horses or birds - simply didn’t show up.
Within 20 years, faster chemistry brought exposure times down from hours to minutes, then to seconds. Today your phone takes a sharp photo in under a thousandth of a second. But it all started with one patient inventor willing to wait eight hours for a single fuzzy image.
