Manhattan Project

THE MANHATTAN PROJECT.. (ATOMIC BOMB)



The manhattan project was a secret project that was established before WWII and culminated in the development of the Nuclear Bomb. it was so seceret that not even the vice president know about it.



1 This image found here.
This picture is a primary source, it is a image of an explosion in new mexico, and it was a very reliable source for the time. The unanwsered question was "where is it from?"







1-America wanted to end the war, and save lives. America was very powerful, and could create massive weapons of destruction.

2 SPEECH BY HARRY S. TRUMAN.

In Truman's speech he stated that the bomb was very powerful and what it did. He also blamed the japanese for forceing us to use the atomic bomb. He talked about how they would use the atomic bomb, and about germany and how they would try and construct atomic energy. He also gave credit to scientists for their work.

The rest of his speech is found here.

3 LETTER FROM EINSTEIN TO ROOSEVELT

In this letter it tells how in the summer of 1939, American newspapers and magazines openly discussed the prospect of atomic energy. And how most American physicists doubted that atomic energy or atomic bombs were realistic possibilities.

It also says that within days the plan became much more far-reaching when Szilard discussed the matter with economist Alexander Sachs. Sachs, who was an unofficial adviser to President Franklin Roosevelt, had urged that Einstein should write directly to the President. guests informally, wearing old clothes and slippers. He served them tea on the shady porch while they discussed the new approach.
Einstein was willing to write to the President. As a life-long pacifist, he opposed the making of weapons, but he could not allow the Nazis sole possession of such destructive power. His only objection was that Szilard's letter was long and somewhat awkward. He preferred a shorter message stressing the main points. Einstein dictated a short draft in German which Szilard took down.
it also says that a large-scale U.S. atomic project did not begin until December 6, 1941, one day before the bombing of Pearl Harbor. It became the Manhattan Project in August 1942.

The rest of Einsteins Letter is found, Here

4. This image found, Here







This was taken on july 24th 1943. In this image shows the atomic bomb that the United States constructed. This image is also an example of our power and the power we had.







5 Where Did The Money Go?

This chart shows all the costs for materials and for all of the other costs of the manhattan project. It also tells the amount of money that was spent per year.

(estimated cumulative costs through December 31, 1945)
Site/Project
Then-year Dollars
Constant 1996 Dollars
OAK RIDGE (Total)
$1,188,352,000
$13,565,662,000
K-25 Gaseous Diffusion Plant
$512,166,000
$5,846,644,000
Y-12 Electromagnetic Plant
$477,631,000
$5,452,409,000
Clinton Engineer Works, HQ and central utilities
$155,951,000
$1,780,263,000
Clinton Laboratories
$26,932,000
$307,443,000
S-50 Thermal Diffusion Plant
$15,672,000
$178,904,000
HANFORD ENGINEER WORKS
$390,124,000
$4,453,470,000
SPECIAL OPERATING MATERIALS
$103,369,000
$1,180,011,000
LOS ALAMOS PROJECT
$74,055,000
$845,377,000
RESEARCH AND DEVELOPMENT
$69,681,000
$795,445,000
GOVERNMENT OVERHEAD
$37,255,000
$425,285,000
HEAVY WATER PLANTS
$26,768,000
$305,571,000
Grand Total
$1,889,604,000
$21,570,821,000

This Information found, Here


this picture is of albert einstien disscussing the atomic bomb and how it works and how they are going to make it. many sienentist tryed to get premission to resaerch or make an atomic bomb but none of them was sucesful until einstien came and conviced the president and secetary of war to star to construct the atomic bomb.this source is very reliable because one it is a picture and the web site is reliable.
this picture is hound here

over 5ooo men workon the project and many of them hardly know what they were making.

this is a primary scource taken by one of the workers. this picture was taken for people to know what was happening in side the closed doors. i beilve that this source is very reliable because it is a picture and pictures dont usaully lie. the one question that is left unanswered is where is it held this picture is found here
1 Who helped conviced the president and the secratary of war to start to construct the atomic bomb.
2 What was the date on one of the pictures showing them carrying the atomic bomb.
3 About how many poeple worked on the project.