2. Why people want to developWhy people want to develop
nuclear weapons?nuclear weapons?
They were made for National Defense.They were made for National Defense.
For intimidating other countriesFor intimidating other countries
It is a statement of development and powerIt is a statement of development and power
4. The history of nuclear weaponsThe history of nuclear weapons
•Scientist discovered howScientist discovered how
to create a chain reactionto create a chain reaction
in the 1930s.in the 1930s.
•Robert Oppenheimer ledRobert Oppenheimer led
an operation known asan operation known as
The “Manhattan Project.”The “Manhattan Project.”
5. Nuclear reactions ofNuclear reactions of
fusion happen whenfusion happen when
two nuclear particlestwo nuclear particles
collide with eachcollide with each
other to createother to create
products that areproducts that are
different from thedifferent from the
orignal particles.orignal particles.
Fission occurs whenFission occurs when
the nucleus of anthe nucleus of an
atom is split. Whenatom is split. When
this happens, gammathis happens, gamma
rays are emitted. Ifrays are emitted. If
fission occurs, highfission occurs, high
amounts of energy inamounts of energy in
the form of radiationthe form of radiation
are released.are released.
7. What is the Atomic Bomb MadeWhat is the Atomic Bomb Made
From?From?
8. Who Created the Atomic BombWho Created the Atomic Bomb
and When was it Created?and When was it Created?
Named the Manhattan ProjectNamed the Manhattan Project
The leader of the ManhattanThe leader of the Manhattan
Project was U.S. Army BrigadierProject was U.S. Army Brigadier
General Leslie R. Groves; HisGeneral Leslie R. Groves; His
team worked under the directionteam worked under the direction
of American physicist J. Robertof American physicist J. Robert
OppenheimerOppenheimer
Development of the atomic bombDevelopment of the atomic bomb
began in 1942began in 1942
10. When was the First BombWhen was the First Bomb
Dropped?Dropped?
The first atomic explosion was conducted, asThe first atomic explosion was conducted, as
a test, at Alamogordo, New Mexico, on Julya test, at Alamogordo, New Mexico, on July
16, 194516, 1945
August 6, 1945 the US drops first atomicAugust 6, 1945 the US drops first atomic
bomb on Hiroshima, Japan ("Little Boy")bomb on Hiroshima, Japan ("Little Boy")
August 9, US drops second atomic bomb onAugust 9, US drops second atomic bomb on
the city of Nagasaki ("Fat Man")the city of Nagasaki ("Fat Man")
11. The destruction ofThe destruction of
Hiroshima/NagasakiHiroshima/Nagasaki
hh
Before After
