December 24, 1896: Engineering News article–A Large Direct-Driven Centrifugal Pump. “We illustrate herewith a centrifugal sewage pump designed and built for the city of Norfolk, Va., by the Morris Machine Works, Baldwinsville, N. Y. The pump has 20-in. suction and 18-in. discharge, the latter connected to a 20-ln. piping. The actual head worked against Is 26 ft., but when the pump is driven to Its maximum capacity, discharging about 9,000 gallons of water per minute and forcing It through the discharge pipe, which is 1,600 ft. long, the total head pumped against Is equivalent to about 5 ft….
The sewage and drainage from the city flows into a well from which the pump takes its supply, discharging it in the river. The side and sectional views, Fig. 2, show the construction of the pump. The runner is made completely of bronze, so as to withstand the corroding action of sewage and the gases contained therein.”
Commentary: Great pump. Unfortunately, the used it to pump raw sewage into the river, which was a common occurrence in the 1890s. Sewage treatment plants were rare during this period. It would take several decades before sewage treatment was the rule instead of the exception.
Reference: “A Large Direct-Driven Centrifugal Pump.” Engineering News. 36:26(December 24, 1896): 421.
December 24, 1914: John Muir dies. “John Muir (21 April 1838 – 24 December 1914) was a Scottish-born American naturalist, author, and early advocate of preservation of wilderness in the United States. His letters, essays, and books telling of his adventures in nature, especially in the Sierra Nevada mountains of California, have been read by millions. His activism helped to preserve the Yosemite Valley, Sequoia National Park and other wilderness areas. The Sierra Club, which he founded, is now one of the most important conservation organizations in the United States. One of the most well-known hiking trails in the U.S., the 211-mile (340 km) John Muir Trail, was named in his honor. Other places named in his honor are Muir Woods National Monument, Muir Beach, John Muir College, Mount Muir, Camp Muir and Muir Glacier.
In his later life, Muir devoted most of his time to the preservation of the Western forests. He petitioned the U.S. Congress for the National Park bill that was passed in 1890, establishing both Yosemite and Sequoia National Parks. Because of the spiritual quality and enthusiasm toward nature expressed in his writings, he was able to inspire readers, including presidents and congressmen, to take action to help preserve large nature areas. He is today referred to as the “Father of the National Parks,” and the National Park Service produced a short documentary on his life.”
Commentary: Dam construction to create the Hetch Hetchy water supply for San Francisco in Yosemite National Park was approved by Congress in early December of 1913. This was a major defeat for Muir and some say that it affected his health so much that he died of a broken heart.