1 243 résultats
2081502112300255Asahi Shimbun Seibu Head Office Planning Department N.A. Soft Cover. Fine. Number of pages: 56p mainly pictures Size: 26cm Asahi Shimbun Seibu Head Office Planning Department paperback
19852090202120415715Shiraki kominkan 1985. Soft Cover. Fine. Number of books: 1 Shiraki kominkan paperback
19762090202120405342Hiroshima Railway Administration Bureau 1976. Soft Cover. Fine. Number of books: 1 Hiroshima Railway Administration Bureau paperback
20132111902158300046Kadokawa Shoten Kadokawa one theme 21 2013. Soft Cover. Fine. Number of pages: 308 p Size: Size cm: 17.4 x 11.2 x 1.5 Number of books: 1 Kadokawa Shoten Kadokawa one theme 21 paperback
19592082402113510861Meiji tosho 1959. Soft Cover. Fine. The book is in fine condition. Meiji tosho paperback
19782083002115803701Hiroshima Soil History Society 1978. Soft Cover. Fine. Number of books: 1 book Hiroshima Soil History Society paperback
20162090202120410687Not Available 2016. Soft Cover. Fine. Number of books: 1 Not Available paperback
20142090202120415530Hiroshima Literary Materials Preservation Society 2014. Soft Cover. Fine. Number of books: 1 Hiroshima Literary Materials Preservation Society paperback
19872090202120416106Hiroshima Eiga Techosha 1987. Soft Cover. Fine. Number of books: 1 Hiroshima Eiga Techosha paperback
19701113326Hiroshima Prefectural Museum of Arts. Good paper copy ex. cat. 19th September - 4th October 1970 182 pp 1 pp greetings 1 pp of text by Bernada B. Shahn "Ben in Japan" 2 pp "Ben Shahn - His Life and Arts" 26 4/C illus B/W illus. throughout lists 170 works with media size owner 1 pp text . Good. Paper. 1970. Hiroshima Prefectural Museum of Arts unknown
19822090202120414519Hiroshima Prefecture Agricultural Cooperative Printing Office 1982. Soft Cover. Fine. Number of books: 1 Hiroshima Prefecture Agricultural Cooperative Printing Office paperback
1992KOS049600003Mainichi newspapers 1992 Soft Cover Fine
19802110502150311762Hiroshima Archaeological Society 1980. Soft Cover. Fine. Volume: 1 Hiroshima Archaeological Society paperback
19722090202120415522Mizomoto sekizen-kan 1972. Soft Cover. Fine. Number of books: 1 Mizomoto sekizen-kan paperback
19822090202120413773Not Available 1982. Soft Cover. Fine. Number of books: 1 Not Available paperback
12518Little Boy was the code name of the atomic bomb which was dropped on Hiroshima on August 6 1945 by the 12-man crew of the B-29 Superfortress Enola Gay. Here we have a black and white copy of a Blue print showing the first atomic bomb with handwritten explanations of the components and how it works in the hand of a crew member who dropped this bomb on Hiroshima Enola Gay's Weapons Test Officer Jeppson. Jeppson was one of only 2 men who was both at Los Alamos during the development and testing of the bomb and also on board the Enola Gay when it dropped the bomb. Jeppson has made handwritten notations showing where a bullet of U235 shoots into a mass of U235 to create a the atomic explosion. He writes on the blueprint pointing out where the "uranium bullet" is that shoots in "the uranium target ring" and explanations on how it worked.<br/><br/>The design was a very conservative one that was as certain to work as any untested device can be. The design was complete by February 1945 and the actual bomb was ready for combat use by early May 1945 - except for the U-235 pit. The Little Boy design used the gun method to explosively force a sub-critical mass of uranium-235 and three U-235 target rings together into a supercritical mass initiating a nuclear chain reaction. This was accomplished by simply shooting one piece of the uranium the "projectile U235" into the other namely the "target U235" by means of a chemical explosives. <br/><br/>Here Morris Jeppson the Weapons Test Officer of the Enola Gay has made handwritten notations explaining the main different parts of this Atomic Bomb he writes: "Little Boy Bomb Weight about 5 tons". He draws arrows labeling the "target U235" where the projectile 235 should hit. He points out the "hook to hang bomb in B29" that held the Bomb to the Enola Gay the write "projectile U235" pointing to the bullet of U235 that will shout into the target . <br/><br/>On the margin he explains in his hand: "The design of Little Boy used the gun assembly method. The bullet of U235 impacting the target of U235 produces a critical mass in a very short period of time - and the heavy nose casing contains critical conditions long enough for the nuclear reaction to proceed. During the flight I removed 3 green electrical plugs and replaced them with red coded plugs. This allowed the detonation voltage to go from fusing to the explosive that fired the projectile of U235 into the target of U235 when the bomb reached about 1500 feet above Hiroshima. Underneath his explanation he signs "Morris Jeppson/ Weapons Test Officer/ Enola Gay Mission/ HIROSHIMA - 6 Aug. 1945" .<br/><br/>The bomb was armed in flight then Jeppson removed the safety plugs as describes on the document and as such was the last to touch Little Boy before it was dropped at approximately 8:15 a.m. JST. Approximately 70000 people were killed as a direct result of the blast and a similar number were injured. Measure approx. 18" x 24". In excellent condition. unknown books
1992KOS049600005Mainichi newspapers 1992 Soft Cover Fine
19432090202120414185Hiroshima Prefecture Hiroshima Second Junior High School Alumni Association 1943. Soft Cover. Fine. Number of books: 1 Hiroshima Prefecture Hiroshima Second Junior High School Alumni Association paperback
19762080302106808995Hiroshima University Faculty of Literature Naikai Culture Laboratory 1976. Soft Cover. Fine. Number of books: one Hiroshima University, Faculty of Literature, Naikai Culture Laboratory paperback
19992091502135410439Not Available 1999. Soft Cover. Fine. Number of books: 1 Not Available paperback
19782090202120201166Hiroshima Prefecture Board of Education 1978. Soft Cover. Fine. Number of books: 3 Hiroshima Prefecture Board of Education paperback
19942090202123003037Not Available 1994. Soft Cover. Fine. The book is in fine condition. Not Available paperback
19902110502151110404Hiroshima Prefecture Board of Education 1990. Soft Cover. Fine. Number of books: 1 Hiroshima Prefecture Board of Education paperback
19942110502151109214Hiroshima Prefectural Cultural Property Research Center 1994. Soft Cover. Fine. Number of books: 1 Hiroshima Prefectural Cultural Property Research Center paperback
19762090202118203906Uemoto Shozo 1976. Soft Cover. Fine. The book is in fine condition. Uemoto Shozo paperback