Atomic BombAtomic Bomb"Fat Man" weapon dropped on Nagasaki

April 30, 1945 Hitler and his wife Eva April 30, 1945 Hitler and his wife Eva Braun commit suicide in his Berlin bunker.Braun commit suicide in his Berlin bunker.

May 8May 8,, 1945 Germany surrenders. 1945 Germany surrenders. Japan is the only one left to defeat.Japan is the only one left to defeat.

From 1942 to 1945 the U.S. has spent $2 From 1942 to 1945 the U.S. has spent $2 billion ($23 billion in 2007) to design and billion ($23 billion in 2007) to design and build three atomic bombs. (money was build three atomic bombs. (money was often appropriated secretly)often appropriated secretly)

The atomic bomb was the result of a The atomic bomb was the result of a massive research project known as the massive research project known as the Manhattan Project.Manhattan Project.

Albert Einstein sent President Franklin Albert Einstein sent President Franklin Roosevelt a letter warning of German Roosevelt a letter warning of German attempts to build a nuclear bomb.attempts to build a nuclear bomb.

11stst test of an atomic bomb: July 14, 1945 test of an atomic bomb: July 14, 1945 Cracked windows 75 miles away.Cracked windows 75 miles away.

http://upload.wikimedia.org/wikipedia/commons/c/cb/Fission_bomb_assembly_methods.svg

An early stage in the "Trinity" fireball”. An early stage in the "Trinity" fireball”. TrinityTrinity was the first was the first testtest of technology of technology

for a for a nuclear weaponnuclear weapon. .

Ground zero after the test. Ground zero after the test.

August 6, 1945August 6, 1945

Enola Gay dropped an atomic bomb on Enola Gay dropped an atomic bomb on Hiroshima, Japan.Hiroshima, Japan.

The The mushroom cloudmushroom cloud over over HiroshimaHiroshima after the after the

dropping of dropping of Little BoyLittle Boy..

This view was taken from the Red Cross Hospital This view was taken from the Red Cross Hospital

Building about one mile from the bomb burst.Building about one mile from the bomb burst.

An overview of the destruction of An overview of the destruction of Hiroshima Hiroshima

August 9, 1945August 9, 1945

Three days later, a second bomb was Three days later, a second bomb was dropped on Nagasaki, Japan.dropped on Nagasaki, Japan.

The The Fat ManFat Man mushroom cloudmushroom cloud resulting from the resulting from the nuclear explosionnuclear explosion over over NagasakiNagasaki rises 11 mi, rises 11 mi,

60,000 ft) into the air from the 60,000 ft) into the air from the hypocenterhypocenter..

Nagasaki before and after bombing Nagasaki before and after bombing

Facts about the Atomic BombFacts about the Atomic Bomb

Dropped from 30,000 feetDropped from 30,000 feet Detonated at 1,900 feet above the center Detonated at 1,900 feet above the center

of the two Japanese cities.of the two Japanese cities. 78,000 people died in less than 1 second. 78,000 people died in less than 1 second.

(Hiroshima)(Hiroshima) 4 square miles of land disappeared.4 square miles of land disappeared. Over 150,000 Japanese died in the two Over 150,000 Japanese died in the two

explosions.explosions.

The energy released by The energy released by the bomb was powerful the bomb was powerful enough to burn through enough to burn through clothing. The dark clothing. The dark portions of the garments portions of the garments this victim wore at the this victim wore at the time of the blast were time of the blast were emblazoned on to the emblazoned on to the flesh as scars, while skin flesh as scars, while skin underneath the lighter underneath the lighter parts (which absorb less parts (which absorb less energy) was not energy) was not damaged as badly. damaged as badly.

Japan surrendered on August 14, 1945Japan surrendered on August 14, 1945

At the White House, President Harry Truman At the White House, President Harry Truman announces the Japanese Surrender. August 14, announces the Japanese Surrender. August 14, 1945 1945

World War II EndsWorld War II Ends World War II officially ends September 2, World War II officially ends September 2,

1945.1945.

Tsutomu YamaguchiTsutomu Yamaguchi (16 March 1916 – 4 (16 March 1916 – 4 January 2010)January 2010)

A Japanese national who survived A Japanese national who survived both the Hiroshima and Nagasaki both the Hiroshima and Nagasaki atomic bombings during World War II.atomic bombings during World War II.

Although more than one hundred Although more than one hundred people are known to have been people are known to have been affected by both bombings, he is the affected by both bombings, he is the only person to have been officially only person to have been officially recognized by the government of recognized by the government of Japan as surviving both explosions.Japan as surviving both explosions.

A resident of Nagasaki, Yamaguchi A resident of Nagasaki, Yamaguchi was in Hiroshima on business for his was in Hiroshima on business for his employer Mitsubishi when the city employer Mitsubishi when the city was bombed on 6 August 1945. was bombed on 6 August 1945.

The following day he returned to The following day he returned to Nagasaki and, despite his wounds, Nagasaki and, despite his wounds, returned to work on 9 August, the day returned to work on 9 August, the day of the second atomic bombing. of the second atomic bombing.

He died of stomach cancer in He died of stomach cancer in January 2010.January 2010.