https://padlet.com/vincent_tang4/xv5lxrdhuklqrxvr Manhattan Project en-us 2022-04-10 20:28:57 UTC 2022-04-12 13:13:46 UTC hello@padlet.com vincent_tang4 https://padlet.com/vincent_tang4/xv5lxrdhuklqrxvr/wish/2138357420 2022-04-10 23:56:54 UTC https://padlet.com/vincent_tang4/xv5lxrdhuklqrxvr/wish/2138357420 vincent_tang4 https://padlet.com/vincent_tang4/xv5lxrdhuklqrxvr/wish/2138360029 The Manhattan Project is the code name for the research and creation of the atomic bomb in World War II. ]]> 2022-04-11 00:00:30 UTC https://padlet.com/vincent_tang4/xv5lxrdhuklqrxvr/wish/2138360029 vincent_tang4 https://padlet.com/vincent_tang4/xv5lxrdhuklqrxvr/wish/2138365162 The significant of the Manhattan project was that it created a new type of weapon and it contributed to ending World War II. ]]> 2022-04-11 00:06:59 UTC https://padlet.com/vincent_tang4/xv5lxrdhuklqrxvr/wish/2138365162 vincent_tang4 https://padlet.com/vincent_tang4/xv5lxrdhuklqrxvr/wish/2138370570 August 13, 1942 to August 1945. ]]> 2022-04-11 00:13:06 UTC https://padlet.com/vincent_tang4/xv5lxrdhuklqrxvr/wish/2138370570 vincent_tang4 https://padlet.com/vincent_tang4/xv5lxrdhuklqrxvr/wish/2138387087 The two elements used in the atomic bomb is plutonium and uranium. ]]> 2022-04-11 00:29:48 UTC https://padlet.com/vincent_tang4/xv5lxrdhuklqrxvr/wish/2138387087 vincent_tang4 https://padlet.com/vincent_tang4/xv5lxrdhuklqrxvr/wish/2138394636 The director of the Manhattan Project is Leslie R. Groves. ]]> 2022-04-11 00:37:17 UTC https://padlet.com/vincent_tang4/xv5lxrdhuklqrxvr/wish/2138394636 vincent_tang4 https://padlet.com/vincent_tang4/xv5lxrdhuklqrxvr/wish/2138407990 The Manhattan Project started in 1939 when two German scientist, Otto Hahn and Fritz Strassmann, accidently discovered nuclear fission. After a few month, Albert Einstein and Leo Szilard sent a letter to president FDR warning him about Germany possibly build the atomic bomb. ]]> 2022-04-11 00:50:40 UTC https://padlet.com/vincent_tang4/xv5lxrdhuklqrxvr/wish/2138407990 vincent_tang4 https://padlet.com/vincent_tang4/xv5lxrdhuklqrxvr/wish/2138420845 The two people that built the first nuclear reactor is Leo Szilard and Enrico Fermi. ]]> 2022-04-11 01:02:23 UTC https://padlet.com/vincent_tang4/xv5lxrdhuklqrxvr/wish/2138420845 vincent_tang4 https://padlet.com/vincent_tang4/xv5lxrdhuklqrxvr/wish/2139178883 The person in charge of splitting uranium-235 is Ernest Orlando Lawrence. ]]> 2022-04-11 13:41:19 UTC https://padlet.com/vincent_tang4/xv5lxrdhuklqrxvr/wish/2139178883 vincent_tang4 https://padlet.com/vincent_tang4/xv5lxrdhuklqrxvr/wish/2139211380 The first method they used to split uranium is the gaseous diffusion method, where uranium hexafluoride gas was fed through thousands of identical stages that slowly parted the lighter U-235 molecules from the heavier U-238. ]]> 2022-04-11 14:00:37 UTC https://padlet.com/vincent_tang4/xv5lxrdhuklqrxvr/wish/2139211380 vincent_tang4 https://padlet.com/vincent_tang4/xv5lxrdhuklqrxvr/wish/2139232238 Plutonium was actually discovered during the Manhattan Project when they made a nuclear reaction inside the X-10 Graphite Reactor. Which created the byproduct, plutonium. ]]> 2022-04-11 14:13:11 UTC https://padlet.com/vincent_tang4/xv5lxrdhuklqrxvr/wish/2139232238 vincent_tang4 https://padlet.com/vincent_tang4/xv5lxrdhuklqrxvr/wish/2139235002 The next method is liquid thermal diffusion method using a heating element to enrich uranium. Then the U-235 molecule would diffuse towards the hotter surface and the U-238 molecule would diffuse towards the cooler surface. ]]> 2022-04-11 14:14:50 UTC https://padlet.com/vincent_tang4/xv5lxrdhuklqrxvr/wish/2139235002 vincent_tang4 https://padlet.com/vincent_tang4/xv5lxrdhuklqrxvr/wish/2139235494 The last method used the Electromagnetic Separation method which worked by giving vaporized uranium a positive charge. Also machines called calutrons used electromagnets to repel the two isotopes towards different targets. ]]> 2022-04-11 14:15:09 UTC https://padlet.com/vincent_tang4/xv5lxrdhuklqrxvr/wish/2139235494 vincent_tang4 https://padlet.com/vincent_tang4/xv5lxrdhuklqrxvr/wish/2139246856 Plutonium has 5 common isotope, Pu-238, Pu-239, Pu-240, Pu-241, and Pu-242. The important thing is that all of the common isotopes are fissionable, which means that the nucleus can be easily split apart when it is struck by a neutron. ]]> 2022-04-11 14:21:46 UTC https://padlet.com/vincent_tang4/xv5lxrdhuklqrxvr/wish/2139246856 vincent_tang4 https://padlet.com/vincent_tang4/xv5lxrdhuklqrxvr/wish/2139387322 J. Robert Oppenheimer was the one who lead the Manhattan Project. He was also called the "father of the atomic bomb"]]> 2022-04-11 15:43:26 UTC https://padlet.com/vincent_tang4/xv5lxrdhuklqrxvr/wish/2139387322 vincent_tang4 https://padlet.com/vincent_tang4/xv5lxrdhuklqrxvr/wish/2139967591

https://www.history.com/topics/world-war-ii/the-manhattan-project

https://www.atomicheritage.org/history/manhattan-project

https://www.britannica.com/event/Manhattan-Project

https://www.energy.gov/lm/doe-history/manhattan-project-background-information-and-preservation-work

https://www.atomicheritage.org/history/building-bomb-1943

https://www.osti.gov/opennet/manhattan-project-history/Events/1942-1945/final_design.htm

https://www.nrc.gov/reading-rm/basic-ref/students/science-101/what-is-plutonium.html

http://blog.nuclearsecrecy.com/2013/05/17/the-price-of-the-manhattan-project/

https://www.kidpaw.com/famous-people/leslie-groves-pid47567

https://www.biography.com/scientist/j-robert-oppenheimer

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