On May 31, 1889, the South Fork dam gave way, sending 20 million tons of water rushing toward Johnstown, Pennsylvania. The water swept up everything in its path, and it only took about 10 minutes to wash away Johnstown. But was nature solely to blame?
Jul 8
Dorothy Crowfoot Hodgkin’s Crystalline Chemistry, Part 2
After earning her first-class degree in chemistry from Oxford, Dorothy embarked on an impressive career in the new field of X-ray crystallography. She would ultimately earn many, many accolades for her work. Research: "Dorothy Crowfoot Hodgkin." Encyclopedia of World Biography On ... Show More
43m 15s
Feb 2024
Johnstown Flood | The Dam | 1
It’s May, 30th 1889, and the South Fork Dam in Western Pennsylvania is in danger. After nearly a month of hard rain, eight inches have fallen in one day, filling the lake behind the dam to capacity. And the dam’s owners, the South Fork Hunting and Fishing Club, have cut corners i ... Show More
47m 2s
Feb 2024
Johnstown Flood | Cascade | 3
Despite the efforts of engineer John Parke, the South Fork Dam does break. The ensuing flash flood sweeps up a vast, moving wall of debris: mud, rocks, trees, fragments of bridges and smashed-up houses. Residents in Johnstown, including Reverend H.L. Chapman and his family, have ... Show More
40m 3s
Mar 2024
Johnstown Flood | Prepare for the Worst | 5
National Park Ranger Doug Bosley’s existence hinges on a few dangerous seconds in the life of his great-great grandfather, William Pickerill. On May 31, 1889, Pickerill worked as a telegraph operator down the valley from Johnstown, Pennsylvania. Before it was washed away by the f ... Show More
35m 8s