Knowtex

In 1947, Ralph Morse went to Lascaux, and became the first photographer to ever document the paintings. Here, in a gallery featuring rare and never-published photographs, Morse shares his memories of what it was like to encounter the long-hidden, strikingly lifelike handiwork of a vanished people.

Albert Einstein, the genius physicist whose theories changed our ideas of how the universe works, died 55 years ago, on April 18, 1955. He was 76. His funeral and cremation were intensely private affairs, and only one photographer managed to capture the events of that extraordinary day.

Some technological advances that came in the earlier part of the 20th centry weren't exactly meant for the history books. Because they were stupid.