to sink a shaft
81Lathe (metal) — Center lathe with DRO and chuck guard. Size is 460 mm swing x 1000 mm between centers A metal lathe or metalworking lathe is a large class of lathes designed for precisely machining relatively hard materials. They were originally designed to… …
82Sima Pumacocha — is a limestone cave located in the Yauyos province of central Peru near the village of Laraos, high in the Andes mountains. It is one of the deepest caves in South America.Physical and geological settingAt 4300m to 4400m above sealevel, the… …
83H class battleship (1944) — The H 44 class was the ultimate evolution of a series of battleship design studies, derived by the Third Reich s Kriegsmarine as an outgrowth of the H Class battleship program.The H 39 designThe H Class ships saw their design finalized by 1939,… …
84The African Queen (novel) — The African Queen is a 1935 novel written by C.S. Forester. Plot summaryOn the RiverThe story opens in mid 1914. Rose Sayer, a 33 year old English woman, is the companion and servant of her brother Samuel, an Anglican missionary in Central Africa …
851932 Moweaqua Coal Mine disaster — The Moweaqua Coal Mine Disaster happened on December 24, 1932, in Moweaqua, Illinois. The disaster was caused by a methane gas explosion killing 54 miners. The explosion occurred shortly after the day shift started, sometime between 7:30 and 8:00 …
86Quartz reef mining — Primary gold typically occurs in quartz veins. The extraction of gold ore from these hard quartz veins was historically referred to as quartz reef mining.A Prussian engineer, Jacob Brache was the first to think that quartz reefs might have even… …
87Santa Fe Railroad Tugboats — The Santa Fe Railroad barged rail cars across the San Francisco Bay for much of the 20th century as there is no direct rail link to the San Francisco peninsula. In the post World War II period a fleet of three tugs moved the barges: the Paul P.… …
88environmental works — ▪ civil engineering Introduction infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations …
89Cox model engine — Cox Model Engines Cox Fokker DVII Ready To Fly Control Line Model Plane …
90Mosley Common Colliery — was a coal mine originally owned by the Bridgewater Trustees operating on the Manchester Coalfield after 1866 in Mosley Common, Greater Manchester, then in the historic county of Lancashire, England.[1] The colliery eventually had five shafts and …
