http://www.rssboard.org/rss-specification 720 http://ecuip-xtf.lib.uchicago.edu/xtf/search?expand%3Dsubject;f1-subject%3DEvents%20(Historical) Results for your query: expand=subject;f1-subject=Events (Historical) Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/AtomicPileLayer_apf2-00502r/AtomicPileLayer_apf2-00502r.dc.xml Photograph taken November 1942 during construction of the first nuclear reactor as the 19th layer of graphite was added. Layer 18, almost covered in the picture, contained uranium; alternate layers of graphite containing uranium metal and uranium oxide were spaced by layers of dead graphite. Construction was carried on in this manner to the 57th layer, which was one layer beyond critical or operating dimensions. The roughly spherical form of the structure is shown as is some of the supporting framework. The reactor was constructed under a section of the West Stands of the University of Chicago's Stagg Field, and was operated for the first time December 2, 1942. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/AtomicPileLayer_apf2-00502r/AtomicPileLayer_apf2-00502r.dc.xml Sun, 01 Nov 1942 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/AtomicPileSketch_apf2-00501r/AtomicPileSketch_apf2-00501r.dc.xml On December 2, 1942 using a nuclear reactor erected under a section of the West Stands of the University of Chicago's Stagg Field, a group of scientists achieved the first self-sustaining chain reaction and thereby initiated a controlled release of nuclear energy. The reactor consisted of uranium and uranium oxide lumps spaced in a cubic lattice embedded in graphite. In 1943, the reactor was dismantled and reassembled at the Argonne National Laboratory. Photographic copy of drawing. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/AtomicPileSketch_apf2-00501r/AtomicPileSketch_apf2-00501r.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/LVA00186/LVA00186.dc.xml Sputnik's launch captured the eye of the world, and Virginia, where Harvey Moseley grew up, is no exception. This article, which appeared in a Virginia newspaper soon after the launch of Sputnik, asks the question: Why did the U.S. lag behind Russia in getting a satellite into orbit around the Earth? http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/LVA00186/LVA00186.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/atom-bomb-test/atom-bomb-test.dc.xml 1/40th of a second after detonation at the Trinity site in New Mexico. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/atom-bomb-test/atom-bomb-test.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/farmBureau_Sputnik/farmBureau_Sputnik.dc.xml Sputnik's launch captured the eye of the world, and Virginia, where Harvey Moseley grew up, is no exception. This article, which appeared in a Virginia newspaper soon after the launch of Sputnik, asks the question: Why did the U.S. lag behind Russia in getting a satellite into orbit around the Earth? http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/farmBureau_Sputnik/farmBureau_Sputnik.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/natl-aero-space-act-1958-xl/natl-aero-space-act-1958-xl.dc.xml Before the National Aeronautics and Space Act of 1958, space exploration was primarily a military venture. On July 29, 1958, when the Space Act was signed by President Dwight D. Eisenhower, the United States established a civil space program that would be run by a new agency, the National Aeronautics and Space Administration, NASA. The Act charged NASA with eight objectives, including “the establishment of long-range studies of the potential benefits to be gained from, the opportunities for, and the problems involved in the utilization of aeronautical and space activities for peaceful and scientific purposes.” http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/natl-aero-space-act-1958-xl/natl-aero-space-act-1958-xl.dc.xml Tue, 29 Jul 1958 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/Bravo_Site_D_92_3/bravo_Site_D_92_3.dc.xml The site of the test of the first hydrogen bomb by the United States on March 1, 1954. This was the most powerful nuclear device ever detonated by the United States. This photograph shows the equipment used to the develop the test site, and the dirt foundation for the test structure. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/Bravo_Site_D_92_3/bravo_Site_D_92_3.dc.xml Mon, 01 Mar 1954 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/Kennedy_TestBanTreaty/Kennedy_TestBanTreaty.dc.xml U.S. Senators look on as President John F Kennedy sits at a desk in the Treaty Room of the White House and signs the Limited Test Ban Treaty. On August 5, 1963, the Limited Test Ban Treaty was signed by the United States, Great Britain, and the Soviet Union. After Senate approval, it was signed by President Kennedy on October 7, 1963. The treaty went into effect on October 11, 1963, and banned nuclear weapons testing in the atmosphere, in outer space, and under water. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/Kennedy_TestBanTreaty/Kennedy_TestBanTreaty.dc.xml Mon, 07 Oct 1963 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/NASA_V-2/NASA_V-2.dc.xml A V-2 rocket is hoisted into a static test facility at White Sands, New Mexico. The German engineers and scientists who developed the V-2 came to the United States at the end of World War II and continued rocket testing under the direction of the U. S. Army, launching more than sixty V-2s. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/NASA_V-2/NASA_V-2.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/SquashUnderStagg_apf2-07646r/SquashUnderStagg_apf2-07646r.dc.xml A transformed squash court housed history's first successful nuclear pile. [Enrico] Fermi chose this room because it was the only space available with ceilings high enough to permit construction of the latticed cube-like structure of graphite bricks embedded with Uranium 235. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/SquashUnderStagg_apf2-07646r/SquashUnderStagg_apf2-07646r.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/asas-03081-002/asas-03081-002.dc.xml The center of Hiroshima after the dropping of the atomic bomb on August 6, 1945. The street indicated in this photograph is approximately one half (0.5) mile from the location where the bomb was detonated indicating the extent of the devastation to the city’s buildings and roads. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/asas-03081-002/asas-03081-002.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/asas-03081-003/asas-03081-003.dc.xml Two personnel inspect a ruined building in the aftermath of the bombing of Hiroshima. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/asas-03081-003/asas-03081-003.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/asas-03081-004/asas-03081-004.dc.xml The center of Hiroshima after the dropping of the atomic bomb on August 6, 1945.The bomb destroyed approximately three-fourths of the city and killed an estimated 80,000 people immediately, with thousands more dying later from injuries and radiation poisoning. Records lead us to believe that the bomb touched down approximately halfway between the two smokestacks in this image. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/asas-03081-004/asas-03081-004.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/firstgrb_vela4/firstgrb_vela4.dc.xml Gamma-ray bursts (GRBs) are sudden outbursts of gamma rays from a particular place in the sky that last a few seconds or so. These outbursts are similar to what is seen in a nuclear bomb explosion, and the first GRBs were detected by the Vela satellites that monitored nuclear testing. This graph shows the sudden increase in gamma rays recorded for the first GRB detected by the monitoring satellites in 1967. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/firstgrb_vela4/firstgrb_vela4.dc.xml Sun, 02 Jul 1967 12:00:00 GMT