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6th August 1945 when Japan suffered first Atomic explosion

6th August 1945 when Japan suffered first Atomic explosion - Physics Forum

6th August 1945 when Japan suffered first Atomic explosion - Physics Forum. Discuss and ask physics questions, kinematics and other physics problems.


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Old 08-02-2007, 03:25 PM
fleesow
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Default 6th August 1945 when Japan suffered first Atomic explosion




6th August 1945 when Japan suffered first Atomic explosion

In the month of August in 1945 atomic explosions devastated Hiroshima
and Nagasaki, killing over 1,50,000 people.
The first atomic explosion was triggered on 6th August and second on
9th August 1945.
The followings are important aspects of formation and explosion of
Atomic Bomb.

(i) On 12 September 1932, when Leo Szilard (just seven months AFTER
discovery of Neutron, and six years BEFORE discovery of fission),
suggested the possibility of 'Chain Reaction ', in ENGLAND. But this
proposal was rejected by Ernest Rutherford immediately.

(ii) On 2 Septemebr 1939 , Hahn and Strassmann, the bombardment of
uranium with neutrons had split the uranium atom almost in half , and
huge amount of energy was liberated. Thus nuclear fission was
discovered, it was perceived by Slizard.

(iii) 2 August 1939, Einstein signed letter (prepared by Leo Szilard)
to American President Franklin Roosevelt about the possibility
formation of Atom Bomb. This letter was delivered to President
Roosevelt on 1 Sep 1939 and on 11th October 6000USD were sanctioned
to by graphite and uranium as proposed by Szilard.

(vi) This project was known as Manhattan project. It has mainly 13
scientists and Einstein was associated with formation of Atom Bomb
at all. The total expenditure on the project in six year was about 2
billion.

(vii) On 2 Dec. 1945 at 3.30 pm, American-Italian Enricho Fermi
started first sustained Chain Reaction in Chicago, USA. It was
perceived by Slizard long time back.

(vi) On July 16, 1945, this atomic explosion was tested by the US
administration in New Mexico. Many scientists appealed that this
weapon must not be used.

(vii) On 6th August 1945 American Bomber B52 dropped bomb at 11:02
local time and it exploded 500m in air in Hiroshima. This explosion
generated energy equivalent to 15-kiloton TNT explosion. The second
explosion took place on 9th August at Nagasaki.

These explosions killed more than 1, 50,000 people. It is so nice that
in past 62 there no such devastating incidence in world and hope it
will never happen AGAIN..

More information you may like to visit

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Ajay Sharma

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