1. Atomic Bomb

2. EINSTEIN
1939
LET’S
AMERICA KNOW
GERMANY MAY
ALREADY HAVE THE BOMB!

3. MANHATTAN PROJECT GOAL: PRODUCE A SELF-SUSTAINING
ATOMIC CHAIN REACTION WHERE PARTICLES RELEASED
FROM THE SPLITTING OF ONE ATOM WOULD CAUSE ANOTHER ATOM TO BREAK APART.

4. WHAT DOES THIS MEAN? PLUTONIUM
THEIR GOAL WAS TO BUILD THE MOST POWERFUL BOMB EVER CREATED.
NEXT: THEY NEEDED TO CREATE A SPECIAL KIND OF URANIUM TO MOLD INTO THE BOMB
PLUTONIUM

5. MANHATTAN PROJECT WHO? ENRICO FERMI ITALIAN SCIENTIST
SUCCESSFULLY MANAGED THE CHAIN REACTION NECESSARY FOR DESIRED NUCLEAR EFFECT

6. JOHN OPPENHEIMER

7. HE WAS IN CHARGE PHYSICIST
PRESENT AT THE FIRST TEST SITE IN ALAMOGORDO, NEW MEXICO: July 14, 1945
QUOTE:
Now I have become death, the destroyer of worlds.

8. But would we use it? INTERIM COMMITTEE: ROOSEVELT DEAD APRIL 1945
TRUMAN PRESIDENT NOW
FORMED THIS COMMITTEE OF SCIENTISTS AND POLITICIANS
CHOOSE TO USE THE BOMB TO END THE WAR IN JAPAN TO SAVE FURTHER AMERICAN CASUALTIES

9. ANY OTHER REASON FOR US TO USE IT?
SHOW THE SOVIETS WE HAVE IT
TRUMAN:
AGREES TO USE THE BOMB INSTEAD OF INVADING JAPAN
TWO REASONS: ONE: SAVE LIVES
TWO: REVENGE FOR PEARL HARBOR

10. The pilots/co-pilots and mechanics of the planes that dropped the bomb.

11. Enola Gay, the plane that dropped the first bomb.

12. FAT MAN & LITTLE BOY
"My God, what have we done?" –Robert Lewis
Robert Lewis, the co-pilot of the Enola Gay, the B-29 that dropped the first atomic bomb.

13. THE BOMBS STATS: HIROSHIMA, JAPAN AUGUST 6, 1945
LITTLE BOY: URANIUM BOMB
70,000 PEOPLE DEAD
NAGASAKI: THREE DAYS LATER
FAT MAN: PLUTONIUM BOMB
40,000 PEOPLE DEAD

15. Distance from Ground Zero (km)
Atomic Bomb
Damage of Hiroshima
                                                                                                                        
Distance from Ground Zero (km)
Killed
Injured
Population
0 -1.0
86%
10%
31,200
27%
37%
144,800 2%
25%
80,300
Total
30%
256,300

17. The ruins around the Industrial Promotion Hall, now known as the Atomic Bomb Dome

22. Ohmura Navy Hospital: A 14 year old girl after the bombing of Hiroshima at Ohmura Navy Hospital on August

23. Severe burns. Only his waist was protected from a burn by a waistband he wore (within 1km from the hypocenter).

24. Kimono pattern. Burned areas on the back and on the dorsal portion of the upper arm show that thermal rays penetrated the black or the dark colored parts of kimono she wore.

27. "ATTENTION JAPANESE PEOPLE" EVACUATE YOUR CITIES
*Because your military leaders have rejected the thirteen part surrender declaration, two momentous events have occurred in the last few days.
*The Soviet Union, because of this rejection on the part of the military has notified your Ambassador Sato that it has declared war on your nation. Thus, all powerful countries of the world are now at war against you.
*Also because of your leaders' refusal to accept the surrender declaration that would enable Japan to honorably end this useless war, we have employed our atomic bomb.
*A single one of our newly developed atomic bombs is actually the equivalent in explosive power to what 2000 of our giant B-29's could have carried on a single mission. Radio Tokyo has told you that with the first use of this weapon of total destruction, Hiroshima was virtually destroyed.
*Before we use this bomb again and again to destroy every resource of the military by which they are prolonging this useless war, petition the Emperor now to end the war. Our President has outlined for you the thirteen consequences of an honorable surrender; We urge that you accept these consequences and begin the work of building a new, better, and peace loving Japan.
*Act at once or we shall resolutely employ this bomb and all our other superior weapons to promptly and forcefully end the war."
EVACUATE YOUR CITIES
(This message was sent to the residents of Nagasaki before the second bomb was dropped.)

35. WAR ENDS SURRENDERS: September 2, 1945 AUGUST 14, 1945:
JAPAN ACCEPTS U.S. TERMS
SURRENDERS:
September 2, 1945

36. V-J Day
(Victory over Japan).
For millions of Americans, Alfred Eisenstaedt's 1945 LIFE photograph of a sailor stamping a masterly kiss on a nurse symbolized the cathartic joy of V-J Day.

37. Crowds outside the White House celebrate V-J Day, the Japanese surrender and the end of World War II. August 1945