On August 6, 1945, all
along World War II (1939-45), an American Bomber released the world’s first
arranged atomic bomb over the Japanese city of Hiroshima. This explosion was so
cruel that it removed 90 percent of the city and had rapidly killed 80,000
people; tens of thousands also had later died of beam exposure. The atomic bomb
was one of the greatest explosion in history thus far. At the time of  1942, a secret project was created called the
‘Manhattan Project’ to examine and apply the two atomic bombs Hiroshima and
Nagasaki, which was led by Canada with United States and the United Kingdom as
major supporters. Scientists were also involved to discover that the partition
of an atom would be capable to produce an enormous nuclear reaction (the atomic
bomb). America released two atomic bombs in Japan called ‘Fat man’ and the
‘Little Boy’. One of the bombs involved uranium and the other plutonium. Each
device produced differently, and this project was kept top secret by the
Americans. Canadian scientists named
Arthur Jeffrey Dempster discovered uranium-235, in 1935. In 1942, Canada had
paid all the expenses, and Canadian scientists had also joined the team.
Throughout the time the Canadian government officials, along with former prime
minister William Lyon Mackenzie King and former minister of bombs and supply
C.D. Howe, were informed of uranium’s potential as a bomb. The significance of Canada’s involvement in the creation of the
atomic bomb included assistance from scientists, the government, and with providing
the required uranium and plutonium to create the bomb.

Canadian scientists had generated the atomic bomb which made a huge
development on the control of nuclear technique. A Canadian scientist named
Arthur Jeffrey Dempster identified a chemical element named uranium-235, in
1935. If this was not a Canadian discovery, this part of uranium would not have
been known to man and it would not have been used in ‘Little Boy’. It was one
of Canadian scientists who figured out the finest ways to extract it after the
Americans had failed. Canada also had played a leading role for actual
constructing of the atomic bombs, especially the bomb called ‘Little Boy’. Although
when the scientists were trying to figure out how much uranium they need to use
inside the bomb, Canada had made a crucial calculation that ended up being really
limited than the Americans first thought. Without this the calculation of the
bomb would not have been built properly. Canada also assisted in the building
of the first plutonium atomic bomb, Trinity. Another Canadian scientist named
Louis Slotin, played a huge leading role in bringing together the core of
Trinity. Not long after Trinity was made, ‘Fat Man’ was also introduced, they started
building and using almost the exact same design. So originally, Canada did assist
helping in the design of ‘Fat Man’. After both of the bombs were created, on
August 6, 1945 ‘Little Boy’ was dropped on Hiroshima and had killed the lives
of 66,000 Japanese citizens. 3 days had passed by and another bomb had exploded,
on August 9th, 1945 ‘Fat Man’ was released on Nagasaki and close to 39,000
to 80,000 people were killed due to this explosion.

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All along WWII, on
August 17, 1942, Canada properly decided to arrive the nuclear age. The British
government was in consideration of looking for a partner to change its
Cambridge-based nuclear laboratory during the world war to promote
collaboration with United States in moving up the nuclear weapons. After the
conference between Canada and the United Kingdom, an accommodation was made
with C.D. Howe, Minister of Canada’s wartime Department of Munitions and
Supply, let them go ahead for the Montreal Laboratory which is forerunner of
the Chalk River Laboratories .The laboratory would become combine with the United
States Manhattan Project, which would create a nuclear bomb. After a year,
the Québec Agreement between the United Kingdom and the United States was got signed by
Franklin Delano Roosevelt and Winston Churchill. This accommodation was closed
by general terms which would later authorize and define the nuclear weapons
programs of the Allies and Canada’s role in the Manhattan Project.

During the time, Canada had sent uranium and plutonium to United States
to create the bomb. To create the atomic bomb it required uranium. The British
and the Americans transported uranium from Canada in faith of creating a
nuclear weapon. In May 1941, the United States government arranged 8 tons of
uranium for military investigation from Eldorado, the Canadian association that
operated and owned the Great Bear Lake mine. In March 1942, the United States
government more 60 tons uranium of Canadian uranium from Eldorado; in that
event Eldorado assures to re-open the mine at Great Bear Lake with the
permission from the Canadian government. In June 1942, the United States army
ordered another 350 tons of uranium from Eldorado. In September 1942, the
United States army had bought 1200 tons of rich uranium was established from
the Congo. This type of material was hid secretly, since 1939, inside a
warehouse on Staten Island, in New York Harbour, by Belgian owners. In December
1942, the United States army had arranged 500 tons of more uranium was
established from Eldorado, afore it was delivered, 350 ton contract had been
completed. Nonetheless, when they were asked to clarify the Staten Island established
on an arrangement basis, Eldorado prevented the delivery of Canadian uranium to
United States and beguine to process the Congolese uranium instead. At that
point, approximately over 220 tons of uranium from Great Bear Lake were already
been delivered. From this point on, uranium from Congo, refined at Port Hope,
were going to control the Manhattan Project. During the years of 1943 to 1945,
uranium from Colorado, Canada, and the Congo was used in the World War II Atom
Bomb project: The amount of the uranium that had been upgraded was to
use as a nuclear explosive in the Hiroshima bomb; An acceptable amount of
uranium was been used as a metallic fuel for the  first reactors; inside of each reactor,
portion of the uranium fuel was into the plutonium which was then gained and
had been  used as one of the nuclear
explosive in the Nagasaki and Trinity bombs; a limited amount of polonium was
obtained from uranium ore had been also used, which was mixed with beryllium,
to the total until the neutrons burst and was needed to explode both the
Hiroshima and Nagasaki bombs.