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The term/phrase "nuclear warfare" according to Wikipedia, "is a military conflict or prepared strategy that deploys nuclear weaponry" and "can produce destruction in a much shorter time and can have a long-lasting radiological result" (Wikipedia 2023). The history of nuclear warfare has a history of its own, there were many scientific discoveries in the field of nuclear phyiscs that led to the eventual development of the atomic bomb because "[n]o machine or innnovation just appeared out of teh blue - each innovation is in fact the product of innovations that came before it" and "technology is a construct, and it has history" (Levy 2023, Podcast 1.1). The major scientific discovery that led to the creation of the atomic bomb that eventually led to nuclear warfare was the discovery of nuclear fission. Nuclear fission was discovered in 1938 when a few scientists (I will talk about them more in depth later in the assignment) bombarded a uranium nucleus with lots of neutrons, which splits one large into two or more smaller atoms, and the element barium was discovered. But before nuclear fission was discovered, the neutron had to be discovered because how can you use neutrons to discover nuclear fission if scientists didn't know what a neutron was. The neutron was discovered by English physicist, Sir James Chadwick in 1932. After the discovery of the neutron came the discovery of the process of artificial radioactivity. After artificial radioactivity came Enrico Fermi's experiments with neutron bombardments. After Enrico Fermi is the major discovery of nuclear fission, then finally, Albert Einstein and Leo Szilard's letter/warning to FDR. Below is a timeline of the important events that led to the threat of nuclear warfare and these are the events that I will be analyzing in this assignment.

The Science Behind Nuclear Warfare from 1920-1939

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Continue storytelling with ArcGIS StoryMaps and keep your content. Request that Esri migrate your account to ArcGIS Online by May 31, 2025, and complete migration by June 30, 2025.

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To complete the migration of your StoryMaps.com account to ArcGIS Online, review and accept the Esri Master Agreement and Privacy Policy before June 30, 2025. For more information on migrating to ArcGIS Online, visit the <link>StoryMaps.com retirement page</link>.

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After one year, you will need to purchase an ArcGIS Online subscription to continue using ArcGIS StoryMaps. Check out the StoryMaps <link>retirement page</link> for more information on the ArcGIS Online subscription options.

ArcGIS <link>StoryMaps</link> is the professional version of StoryMaps and is available as part of <link2>ArcGIS Online</link2>. Both products share similar storytelling capabilities, so if you are familiar with StoryMaps, you'll feel right at home with ArcGIS StoryMaps. Visit the <link3>retirement page</link3> for a detailed comparison between StoryMaps and ArcGIS StoryMaps.

If you do not migrate your account to ArcGIS Online, you can save any content you would like to keep before the June 30, 2025, retirement date. The options for saving content include saving stories as a PDF and saving frames using a screen recording. 

Esri is retiring StoryMaps. On June 30, 2025, StoryMaps will go offline, and StoryMaps content will not be available to edit or view. For more information, please visit the <link>StoryMaps retirement page.</link>

Introducing ArcGIS StoryMaps and ArcGIS Online: <link>AGSM Introduction video</link>

You are invited to migrate your account and content to ArcGIS Online where you can continue storytelling with maps. With ArcGIS Online, you’ll get access to ArcGIS StoryMaps and the easy-to-use story builder you are familiar with, plus so much more!

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To complete the migration of your StoryMaps account to ArcGIS Online, review and accept the Esri Master Agreement and Privacy Policy by June 30, 2025. 

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Both of these options include access to ArcGIS StoryMaps and the other ArcGIS Online apps and capabilities. Please note that there is a price difference between the two options that you will need to pay if you want to keep your account active when your free subscription expires. See the FAQs on the <link>StoryMaps.com retirement page</link> for more information about these subscription options.

Selecting Request migration below means that you are deciding to change your StoryMaps.com account to an ArcGIS Online subscription. During the free subscription, you will have access to your existing stories and collections via ArcGIS StoryMaps, as well as an array of additional capabilities offered by ArcGIS Online.

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