DAN LOOKED UP from his desk as the door opened, and a short, thin man dressed in black entered the department’s small library. The silence of the library wasn’t often disturbed by visitors. For some reason, Dan felt the man was a little odd. “Perhaps he’s a professor from another department?” he thought. It was 1973, and he had been working in UCL’s Department of Photogrammetry’s library and the adjacent laboratory for 15 months. His desk was in the back corner of the room. The 135-year-old building had high ceilings which allowed enough wall space for four eight-foot-tall sash windows. However, the day was overcast, and drizzle limited any sunlight filtering into the room. Not unusual for October in London. Dan had put on the overhead lights. They were too dim to do close work but gave sufficient light to peruse the oak bookcases. He had a desk lamp so that he could read his test results. The man hovered near the door and surveyed the room. He was not a young person; he wore half-moo
Fighting Entropy One Story at a Time.