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The manhattan project was a research and development project to create the first nuclear weapons during world war 2
The manhatten project was active from 1942 to 1946
Both Albert Einstein, Leó Szilárd and Robert Oppenheimer were involved in the project
First nuclear device tested in 1945 in New Mexico (Trinity Site).
Uranium is a radioactive atom which means it will decay to other lighter atoms with fewer protons in their core over time. Uranium is radioactive do to it's unstable core, the instability of the core comes from the amount of protons and neutron present in the core. Protons repel each other and but are held together via the atomic strong force to each other and to neutrons, but because of the the size of the core the atomic strong force will be close to being weaker than the electromagnetic forces repeling them. uranium can be split by shooting a neutron into the core of a rare isotope with a atomic number of 235, this split is called fission. Fission of Uranium creates energy, 2 new atoms and 2-3 new neutrons, if enough uranium 235 is present this will create a chain reaction. ​
I have become death, destroyer of worlds,” he said, quoting a line from the Hindu sacred text the Bhagavad-Gita.

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How much do you know about the Manhattan Project?

What was it?

A secret project by the United State, who were responsible for the innovation and production of the first nuclear bomb. It was carried out in a secret place (Los Alamos) in the New Mexico desert.

When was it?

1939-1946

Who were involved in the process?

A lot of very smart scientists like:

Einstein, Bohr, Oppenheimer, Szilsard, and others

The government of course were also involved: Franklin Roosevelt

Other interesting facts?

”Fat man” was the third bomb ever made, and the second bomb ever used in warfare.
“little boy” was the second bomb to be made, and the first bomb to ever be used in wartime.
“Trinity” was the first bomb to ever be tested, and the explosion in the new Mexican desert, caused trinitite to be made.

What do you remember from the 2 first documentaries about "uranium"?

Pechblende (uranit) was extracted in the St. Joachimsthal silver mine as a biproduct. A French scientist found out that it released energy. Marie Curie studied the radioactivity. Einstein said e=mc². Szilsard thought: this could be bad, the Americans should get it before my homeland.
Then the Manhattan project happened, which led to the bombing of Hiroshima and Nagasaki.
Then, the atomic age had begun, with the cold war leading to many bomb tests and large scale nuclear armament.

-Lukas, Jonas og Marcus

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• What was it?
The US’ top secret nuclear weapons project to create an atomic bomb before Nazi Germany

• When was it?
It started in 1939 and ended in 1946

• Who were involved in the process?
Robert J Oppenheimer
Einstein
Leo Szilard
Franklin D. Roosevent

• Other interesting facts?
They created an entire city where the scientists and others involved in the project worked on this.
Trinitite was created from the explosion of the Trinity bomb and this is the only time this has ever been created

• What do you remember from the 2 first documentaries about "uranium"?
The city where they excavated a type of rock that had uranium inside. This was the largest deposit of uranium.
Uranium has a decay, and it was considered alchemy at first.
Radioactive material had been used for medical use, where it was quite effective.

Mathilde, Cathrine and Mathias x2

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How much do you know about the Manhattan Project?

What was it?

It was a secret project by the American government. It was secret for about 7 years before the public found out about it.

When was it?

It was started in 1939, because the government feared a German scientist, Otto Hahn had nearly figured out how to make the Atomic bomb. So the project was a response to German Scientist.

Who were involved in the process?

The Scientist Oppenheimer known for the quote "I have become death, destroyer of worlds"
Einstein.

Other interesting facts?

The uranium was worthless before, being a bad sign in the mining industry.
Radium glows in light.

What do you remember from the 2 first documentaries about "uranium"?

Uranium was a legend about a sleeping dragon and you couldn't wake it up. Which concerned the locals in the Australian uranium mining fields.
It was kept a secret from the public for more than 5 years.
As soon as the war was over, the bomb was made.
Leo Szilard was against the bomb when it was made.

Anders, Anders, Sebastian, Jonas.

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What was it?

It was a unknown project where the US were developing nuclear bombs

When was it?

1940s-1945

Who were involved in the process?

A LOT of scientists and engineers. Einstein, Niels Bohr,  President Roosevelt, Ottenheimer

Other interesting facts?

They were building nuclear weapons. The trenity test where a new metal or stone was created called trinitite, which is basically glass made by the plasma from a nuclear bomb.
When the bombs were dropped, the second one should have been dropped over another city than Nagasaki, but because of bad weather, Nagasaki was chosen.
German scientists actually helped a lot to develop the nuclear bomb.

What do you remember from the 2 first documentaries about "uranium"

He visited Hiroshima, the trinity test site, the uranium mine who the germans took over.
This was probably one of the events which kickstarted the manhattan project.

Rasmus, Daniel, Valdemar

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What was it?
It was a top secret project, greenlighted by the president, and only known to a few people.
When was it?
During WWII and a bit after
Who were involved in the process?
Some scientist, some military people and a few top executives.
Other interesting facts?
The scientist had almost no contact with the outside world?
Two bombs were dropped on Japan a few months after the fall of the nazi empire. Shortly after that the Japanese surrendered
What do you remember from the 2 first documentaries about "uranium"?
It was Albert Einstein that wrote a letter to the president warning him about the threat that the Nazis possibly were posing.
Einstein was warned by Leó Szilárd who later became the first antinuclear activist.

Andreas B, Andreas S, Isabell and Ruben