July 27th, the journey was ended. They were home again. [ applause ] ahead lay three weeks of isolation, medical tests and mission debriefings. Then visits to major cities of america and abroad. The details of their unique mission would be relived and reremembered so others might learn what they had learned and that future travellers in space might build upon their experience. The rock and soil samples brought back would be examined and analyzed by scientists in many lands. They would reveal new insights in to the origin and age and the composition of the moon. And perhaps new knowledge of the earth as well. Already experiments left on the moon were sending back revealing new information. The mission was successfully completed. The eagle had landed the first men on the moon and columbia had returned them safely to the earth. Whatever mans journey tomorrow across the ocean of universe history will remind him that apollo 11 was mankinds First Encounter with a new world. Up next on Americ
Already experiments left on the moon were sending back revealing new information. The mission was successfully completed. The eagle had landed the first men on the moon and columbia had returned them safely to the earth. Whatever mans journey tomorrow across the ocean of universe history will remind him that apollo 11 was mankinds First Encounter with a new world. Up next on American History tv the story of the construction of the hoover dam. That will be fold by a 1960 interview with Herbert Hoover who discusses his life beyond presidency. And later u. S. Army captain William Johnston on his work with the army of the republic of vietnam in the 1960s. And in about an hour a new deal promotional video from 1938 on the importance of the Mississippi River valley to the u. S. And thats all ahead on cspan 3. Heres a look at whats ahead this Labor Day Weekend on American History tv. Saturday at 6 00 p. M. Eastern the civil war and the Atlanta Campaign when the city fell to the union in septe
Served municipal and industrial needs of the pacific southwest, generate hydro electric energy and provide various other multipurpose benefits. The clear waters have opened up the fast, new recreational fish and wildlife Vacation Land for america. Picnic, go boating, swim, fish, and enjoy these important out door recreation products. Hoover dam worked around the clock to serve water and power needs. Falls over 500 feet through the spin stocks to spin the giant turbine wheels and then discharge to the river. This action is completed at downstream dams. Transformers step up hoover dam voltage as it comes from the generators. Lines carry this power up over the powerhouse roof to the switch yard. There it is transmitted over lines across the desert. The river flows south ward. Along the way man diverts from the controlled scream to sustain his prosperous way of life. 67 miles downstream davis down reregulated the colorados flow releasing water through its power plant turbines to irrigators
They removed temporary slabs over the relief valve outlets. Liners assembled in these opens were set in concrete. The turbine scroll case sections were lowered into the pit. Sections were levelled, bolted together and aligned. The completed scroll case was then anchored in concrete. Later the turbines water wheel attached to the bottom end of the shaft was installed inside the case. The butterfly valve was assem e assembled on the generator floor and later connected between the feeder pin stock and the turbine scroll case. Meanwhile the generators two main parts took form. Steel lamination plates were stacked around the row rotor frames. Coils were locked into place and connections were made. The power house lifted it from its erection bay and carried it gently to its foundation over the turbine bit where it was lowered and bolted into place. 466ton rotor was moved from its erection bay. Guide and thrust bearings and other parts were added to complete the assembly. After test runs n8 w