1. The Atomic Bomb

3. Einstein’s Letter:
“ It may become possible to set up a nuclear chain reaction in a large mass of Uranium by which vast amounts of power, and large quantities of radium elements would be generated. It seems almost certain that this could be achieved in the near future”
“A single bomb of this type carried by boat and exploded in port might very well destroy the whole port…and some of the surrounding territory”
- August

4. August 2nd 1939, Albert Einstein writes a letter to President Roosevelt, explaining new scientific discoveries which could lead to atomic bombs.

5. Roosevelt agrees.
June 1942, the U.S begins: The Manhattan Project
Mid July 1945: Trinity Test – the trial run for the bomb in New Mexico.
The bomb is ready!

6. “We waited until the blast had passed
“We waited until the blast had passed. Walked out of the shelter and then it was extremely solemn. We knew the world would not be the same. A few people laughed, a few people cried. But mostly we were silent” - J R Oppenheimer (physicist)

7. The Manhattan Project Development of the atomic bomb
Scientists from Europe, US, GB, & Canada
1941
Los Alamos, New Mexico

8. Little Boy Uranium type Dropped August 6, 1945 Hiroshima
More destructive then Fat Man

9. Fat Man Plutonium type Dropped August 9th, Nagasaki
More powerful then Little Boy

10. Damages Kills 95% of the people in a radius of 1KM
90% of the buildings are destroyed
Majority of deaths are civilians

11. Atomic Bomb Damage of Hiroshima

12. Atomic Bomb Damage of Hiroshima

13. The effects of the bombs on humans
If you are not killed instantly:
- Gamma rays will destroy your cells
- Burns will heal into tumors
days after = fever, loss of hair
days = loss of resistance to infections, blood disorder, gums bleed
Natural protection starts: men become sterile, women have miscarriages, menstruation stops
Die of complications

14. Repercussions

15. Decision to drop the bomb
Japan refuses ultimatum
Predict one more year of war
Prevent a loss of million lives
Japan had almost develop their own atomic bomb
Put the USSR in 2nd place