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THE ATOMIC BOMBINGS and THE END OF WORLD WAR II. AUGUST – SEPTEMBER, 1945. QUIZ, pp. 749-53. The scientist in charge of the Manhattan Project was named __?__ The first successful detonation of an atomic weapon was held in what U.S. state?

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quiz pp 749 53
QUIZ, pp. 749-53

The scientist in charge of the Manhattan Project was named __?__

The first successful detonation of an atomic weapon was held in what U.S. state?

Who was U.S. President when the first successful detonation took place?

The two atomic bombs were nicknamed __?__ and __?__.

The airplane that dropped the first atomic bomb was nicknamed __?__.

What two Japanese cities were attacked with atomic bombs?

Which one was attacked first?

The 1945 Yalta Conference laid the foundation for an international peace-keeping organization called the __?__

Nazi war criminals were prosecuted in the __?__ trials.

What nations occupied Germany after WWII?

the end of the war
The End of the War
  • Japan Loses Ground: Why?
    • U.S. submarine campaign
    • Massive U.S. bombing campaign
    • Heavy battlefield casualties
  • Desperate measures:
    • “Kamikaze” (Define) campaign
    • “No surrender” on battlefield
    • Homeland defense training
  • U.S. Closes in: How will the war End?
the atomic bomb
The Atomic Bomb
  • When?
    • 1942 -1945
  • Where?
    • Oak Ridge, Tennessee
    • Los Alamos, New Mexico
  • Codename: The Manhattan Project
  • Who?
    • Gen. Leslie Groves
    • J. Robert Oppenheimer
  • The First Test:
    • July 16, 1945
    • Trinity Site, Alamogordo, New Mexico
    • Success
to bomb or not to bomb
To Bomb Or Not To Bomb
  • Why drop the bomb?
    • Prevent an invasion of Japan
    • Prevent the risk of massive casualties
    • End the war more quickly
  • Why Not?
    • Is it ethical?
    • Do we really need to?
    • Do we understand the long-term effects?
  • What do YOU think?
the atomic bombings
THE ATOMIC BOMBINGS
  • When?
    • August 6, 1945: Hiroshima
    • August 9, 1945: Nagasaki
  • Effect? Describe:
  • Result? Sept. 2, 1945 – Japan Surrenders
  • World War II Ends
slide15
Major

Charles Sweeny,

U.S. Army A.F.,

Lead Pilot,

Nagasaki Mission

slide19
NAGASAKI

BOMBING

AUGUST 9th,

1945

types of atom bombs
TYPES OF ATOM BOMBS
  • Hiroshima

“Gun” Bomb

  • Nagasaki

“Implosion” Bomb

atomic bomb figures
ATOMIC BOMB FIGURES
  • WW II ATOMIC BOMBS:
    • 1000 TONS OF TNT = 1 “KILOTON”
    • WW II BOMBS = 13,000 TONS = 13 KILOTONS
  • 1952 “HYDROGEN” BOMB:
    • 1 MIL. TONS OF TNT = 1 “MEGATON”
    • HYDROGEN BOMB = 3 MIL. TONS OF TNT = 3 MEGATONS
  • 1955: U.S. HAD 30,000+ MEGATONS OF NUCLEAR WEAPONRY
  • ALL EXPLOSIVE ORDNANCE USED BY ALL NATIONS IN WWII ADDED TOGETHER = 1.2 MEGATONS
slide25
HIROSHIMA

“SHADOW”

nagasaki bomb casualties
NAGASAKI BOMB CASUALTIES
  • DISTANCE FROM GROUND ZERO (KM):
    • 0-1.0 km: 88% Killed, 6% Injured, Pop.: 30,900
    • 1.0-2.5 km: 34% Killed, 29% Injured, Pop.: 27,700
    • 2.5-5.0 km: 11% Killed, 10% Injured, Pop.: 115,200
  • TOTAL: 22% Killed, 12% Injured,Pop.: 173,800