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Atomic Bombs
Atomic bomb is an explosive device in which a large amount of energy is released through nuclear reactions. This makes an atomic bomb, more properly called a nuclear weapon, a much more powerful device than any conventional bomb containing chemical explosives. The first Atomic Bombs were used during World War 2 in 1945 by the US onto 2 Japanese cities.
2,042 Questions
What city did not have the atomic bomb dropped on it?
There were a bunch of cities in WW2 that were not bomber such as New York city and Los Angles California.
yes these city's were not bombed in world war 2 but on the whole this is a really good question...65 citys were bombed in Germany alone so theres a starting point for you! thanks x
When and where did the atomic bomb get set off?
The first test was July 16, 1945 in Alamogordo, New Mexico. The Atomic bomb was also used to end Hiroshima on August 6, 1945 & to obliterate Nagasaki on August 9, 1945.
Was japan the first to research atomic bombs?
Who knows which country started on the atomic bomb research first. Japan burned up much of their research. The Germans did the same. The US kept their records but we don't know who started researching first. We only know the US actually finished the research and developed the bomb.
What effect did the USSR have on the United States decision to drop the atomic bombs on Japan?
None whatsoever. Michael Montagne The bombing of Japan with the atomic bomb served as a signal to the USSR that the US not only had the bomb, but that the US government was also crazy enough the use it. Simply having the bomb and ending the war - the Japanese had been offering to surrender for months before the bombing -- would have left the possibility open that the US would not use the bomb, but just bluff with it.
How many atomic bombs did the us make in World War 2?
The US had built 4 atomic bombs before the end of WW2 and detonated 3 of those. There were plans and facilities for building another 20 before the end of 1945 had they been needed.
- Gadget, detonated July 16, 1945 on a steel tower at the Trinity site in what is now White Sands Missile Range in New Mexico
- Little Boy, detonated August 6, 1945 over Hiroshima, Japan
- Fatman, detonated August 9, 1945 over Nagasaki, Japan
- unnamed, arrived in San Francisco on August 18, 1945 returned to Los Alamos (probably could have been dropped on Japan around August 25, 1945)
Why did US develop an atomic bomb?
To end WWII without the potential loss of many American military lives which would have occurred in Japan was invaded. The Japanese military was brainwashed into suicidal acts rather than surrender to an enemy.
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Actually the US did NOT develop the atomic bomb for use against Japan, it was developed to make sure we got it before Nazi Germany! If Hitler had gotten nuclear weapons there would have been no stopping him anywhere! We HADto try as hard as we could to see that we would have them before Hitler.
However Germany's nuclear project had, unknown the US, turned toward reactor development not bombs, so our fear was unfounded. Also Hitler and the Nazi's didn't trust this new nuclear physics, too many of its developers were Jews and it sounded a lot like "Jewish Physics" (which if you were found teaching it in a university could get you fired or shot).
By the time the US had its first atomic bomb Germany had already surrendered. So the motivation for developing it was gone. But the war wasn't.
The bomb ended up being used on Japan because:
- They were the only enemy left
- The planned invasion of Japan scheduled for the end of September 1945 was projected to take over a year to win and about a million lives on each side
- It had already been decided that if during the invasion of Japan, the Japanese resisted us as fiercely as they had on the last Pacific islands (and there was no reason to assume they wouldn't), that we would use chemical weapons, a violation of the Geneva Convention; use of the Atomic Bomb offered a possible way to avoid this
- The US was tired of war and wanted it ended
- The US had spent $2,000,000,000 developing the atomic bomb
- If the war took another year or longer to win and it was discovered that we had a $2,000,000,000 weapon that could have won it a year before, Truman would have had no end of trouble from congress and the public; impeachment was even a possibility
- Basically Truman had no choice BUT to use the atomic bomb on Japan
What were the short term effects of the atomic bomb on Japan?
Complete and utter devastation. Michael Montagne
What two cities did the us drop 2 atomic bombs on in 1945?
Hiroshima and Nagasaki. Both are in Japan.
What type of energy is stored in an atomic bomb?
The same as is stored in other bombs and even ordinary nonexplosive objects: mass energy. The amount of this energy in a given object in conventional units is given by the well known equation E=Mc2, or in relativistic units by the equation E=M.
The difference is the atomic bomb is able to release a much larger amount of this energy because it can convert more of its available mass to energy.
Note: in the fatman bomb which had a yield of about 22 kilotons, the bomb weighed 10,000 pounds (4536 kilograms), the plutonium core weighed 6.2 kilograms; only about 700 grams of the plutonium fissioned and only about 1 gram of mass was converted to energy! An explosion of 22 kilotons of ordinary TNT also converts only about 1 gram of mass to energy.
Why was it right for Truman to drop the atomic bomb on hiroshima?
That all depends on your perspective of "right". Everyone will have their own opinion. Look at the reasons why we bombed them. Consider what Japan had done, and possibly could have done if we had not bombed them. A lot of people think that killing innocent people to save innocent people doesn't make much sense, but sometimes doing something wrong in order to protect something you see as valuable is the only thing you can do.
What is the technology behind the atomic bomb?
Essentially, a core of fissionable material is impacted to such a degree that it will begin to undergo fission because of loose neutrons impacting the nuclei of the fissionable material. There are two methods, the first is by firing a bullet of fissionable material into a larger mass, and the second is by using conventional explosives to simultaneously concuss the material on all sides.
Did scientists know the atomic bomb would create mutations?
Of course, they were well aware of the effects of radiation. However the immediate acute effects (e.g. blast, fire, radiation poisoning) were felt to be of greater magnitude and significance than any possible long term chronic effects.
Did Italy surrender before America dropped the atomic bomb on Japan?
Yes. Italy surrendered to the Allies, switched to their side, and declared war on Germany on September 8, 1943. Germany surrendered on May 8, 1945, a little over a year and a half later.
An interesting side quirk to this is that later in September 1943, northern Italy was reformed into a fascist country ruled by Mussolini with help from the German military. This new country, the Italian Social Republic, continued fighting against the Allies (including Italy) until it too surrendered on May 2, 1945. So both Italian countries surrendered before Germany did.
Was there another atomic bomb dropped after world war 2?
After that the weapons race began and many atomic bombs were made.
How quick did World War 2 end after the atomic bomb?
After the atomic bombing of the Japanese city of Nagasaki 9th of August 1945 the Japanese government capitulated to Allied demands of an unconditional surrender six days later upon 15th August 1945 . On the 2nd of September the Japanese signed documents of surrender .
Where were the Germans building their atomic bombs?
The Germans (luckily) never actually had a serious atomic bomb project. They were working on one in 1939 and 1940 but made an arithmetic error that suggested that >1000kg of enriched uranium would be needed per bomb (instead of the correct value of <100kg - Little Boy actually use only 64kg). It was deemed that no plane that could be built during the war could carry such an enormous bomb (and the cost of enriching that much uranium beyond the ability of any country at the time - which it probably was), so the project was scaled back (before the US Manhattan Project even began) to only reactor development research with the hope of making powerplants after they won the war.
They never even knew of plutonium, which in the Fatman only needed 6.2kg per bomb!
Why did Winston Churchill drop the atomic bomb?
To end WW2 as fast as possible and avoid getting impeached in 1946 when the war ended after an invasion of Japan costing about a million american lives and the news leaked that he had available a weapon in 1945 that could have ended the war then and he chose not to use it.
Why atomic bombs not dropped over Tokyo and Osaka by US in second world war?
Tokyo was bombed by conventional bombers. The Emperor's Palace, was off limits. If the Emperor had been killed, Japan would not have surrendered even with atomic weapons. And we did use our last two bombs on Hiroshima & Nagasaki (the first bomb was a test bomb in New Mexico in July 1945). The invasion of Japan was scheduled to go; before any other atomic weapons would have been ready for use. It was the Emperor who approved the final surrender of Japan-against the Japanese Army who wanted to fight to the last man.
The name of the second plane to drop the atomic bomb on Japan?
The second US nuclear weapon, used against the city of Nagasaki, Japan on August 9, 1945, was called "Fat Man" for its shape. It used plutonium-239 as its fissioning material, as did the Trinity nuclear device, tested at Alamagordo NM on July16. (see related question)
How many people were knew about the atomic bomb?
Very few people knew ANYTHING about the atomic bomb. First of all it was customary to keep the departments in the dark about the whole picture. In Los Alamos, New Mexico was a compound where the research went on. When the two bombs were ready they were totally different and secretly transported under tarps so not even the handlers could see what they looked like.
Watch the documentary "Fat Man and Little Boy" to get the sense of how things were.
Why did they drop atomic bombs on Nagasaki and Hiroshima?
MAxiMUM SHOCk AND EFFECt qUiCkly tO SWAy tHE JAPANESE PEOPlE AND lEADERSHiP AGAiNSt FUtURE AGGRESiON. iT WORKED!
The reason they picked these two cities is because they were away from any other destruction from the war. It was the first time they used the atomic bomb. They wanted to see the effect of the nuke.
Why didn't the us want to use atomic bombs on Korea?
By the time of the Korean War, the Soviet Union had nuclear weapons and was allied with China and North Korea. Using a nuclear weapon there could have triggered a nuclear war between the US and the USSR.
What makes an atomic bomb go off?
The detonation is caused by bringing together a "critical mass" of radioactive material (the term "critical mass" refers to that quantity of material sufficient for a self-sustaining fission reaction).
What triggers this can vary, depending on the intended usage of the bomb itself. It may be set with a barometric or proximity fuze to detonate in the air, an impact fuze to detonate upon, well, impact, a timed fuze to detonate at a particular pre-set instant, or any of the various other types of artillery fuzes.
The hard part is holding that critical mass together long enough for it to fully fission. The warhead tends to blow apart due to prompt dispersal, causing incomplete detonation. High technology is used to form an focused, explosive, compression that will last long enough, even under the intense pressures of super prompt criticality, to make the most of the weapon.
