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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
Which cities were destroyed by atomic bombs during World War I?
Hiroshima and Nagasaki, in Japan, were bombed at the end of World War 2.
World War I ended with the Treaty of Versailles in 1919.
Why did they choose those two cities to drop the atomic bombs on?
Lists of Japanese cities eligible to bet A-bomb targets were made up by Leslie Groves for the Secretary of War Stimson. Groves wanted cities that had not been heavily damaged by U.S. B29 raids so that the level of damage created by the A-bomb could be accurately studied. Stimson wanted to spare cities that had great cultural value (that dropped Kyoto off the list). Hiroshima & Nagasaki fit the above categories and had some token military facilities to help validate them being used as targets.
What time did the atomic bomb on Hiroshima explode?
The mission on Hiroshima began at 8:16 a.m. on August 6, 1945.
The time of actual destruction and impact was 10:34 am according
to a clock in the Hiroshima Peace Memorial Museum on display.
This antique wind-up pendulum 31-day clock survived the blast
half intact.
Why was Stalin not surprised that the United States had the atomic bomb?
The United States government was deeply penetrated with Soviet spies. Even one of the senior scientists on the Manhattan Project itself was a communist agent who regularly passed information along to Moscow. Stalin knew all about it. Michael Montagne Stalin holded a meeting with USSR famous scientists in 1942 , researched A- bomb ! USSR knowed A-bomb by Britain USSR understanded that make A-bomb by USA
When was the atomic bomb developed by the US and USSR?
Actually the Germans were on track to build the first atom bomb until many key scientists defected to the US/Great Britain. That enabled the US to create the first bomb and drop it in 1945 which led to the end of WW2.
Answer
The Nazis were nowhere near developing an atomic bomb, the "defecting" scientists mentioned above having left Germany well before WWII. Several were of course, Jews. The Manhattan Project was a joint Allied effort with scientists from many countries apart from the US including Britain, Germany, Hungary and Italy. A German, Klaus Fuchs, was a spy for the Russians which how they so quickly developed their own bomb (and why Stalin wasn't as surprised as he should have been when the Allies used their three bombs).
Who detonated the first atomic bomb?
The United States of America created and exploded the first atomic bomb.
The events that took place in a remote area of New Mexico during the predawn hours of July 16, 1945 forever changed the world. Here, the incredible destructive powers of the atom were first unleashed and what had been merely theoretical became reality.
The blast, .034 seconds after detonation The test was the culmination of three years' planning and development within the super secret Manhattan Project headed by General Leslie R. Groves. Dr. J. Robert Oppenheimer directed the scientific team headquartered at Los Alamos, New Mexico. An isolated corner of the Alamogordo Bombing and Gunnery Range located 230 miles south of Los Alamos was selected for the test that was given the code-name "Trinity."
Even before the bomb was tested, a second bomb was secretly dispatched to the Pacific for an attack on the Japanese city of Hiroshima.
Preparations for the test included the building of a steel tower that would suspend the bomb one hundred feet above ground. Many were apprehensive - there were concerns that the blast might launch a cataclysmic reaction in the upper atmosphere leading to world destruction. Some feared the consequences of radio-active fallout on civilian populations surrounding the test site. Still others feared the test would be an outright dud. Observers were sent to surrounding towns to monitor the results of the blast and medical teams were kept on alert.
Finally, the rains that had delayed the test for almost two weeks subsided and in the darkness of that July morning history was made.
"We were reaching into the unknown and we did not know what might come of it."
Two days after the blast, General Groves, head of the Manhattan Project, sent a Top Secret memorandum to Secretary of War Stimson detailing the events of that morning. Groves included the description of General Thomas Farrell who was in an observation hut close to the blast along with a hand-full of scientists and other personnel. We join General Farrell's account a few hours before the explosion:
"The scene inside the shelter was dramatic beyond words. In and around the shelter were some twenty-odd people concerned with last minute arrangements prior to firing the shot. Included were: Dr. Oppenheimer, the Director who had borne the great scientific burden of developing the weapon from the raw materials made in Tennessee and Washington and a dozen of his key assistants - Dr. Kistiakowsky, who developed the highly special explosives; Dr. Bainbridge, who supervised all the detailed arrangements for the test; Dr. Hubbard, the weather expert, and several others. Besides these, there were a handful of soldiers, two or three Army officers and one Naval officer. The shelter was cluttered with a great variety of instruments and radios.
For some hectic two hours preceding the blast, General Groves stayed with the Director, walking with him and steadying his tense excitement. Every time the Director would be about to explode because of some untoward happening, General Groves would take him off and walk with him in the rain, counseling with him and reassuring him that everything would be all right. At twenty minutes before zero hour, General Groves left for his station at the base camp, first because it provided a better observation point and second, because of our rule that he and I must not be together in situations where there is an element of danger, which existed at both points.
General Leslie R. Groves (left) and Dr. J. Robert Oppenhiemer Just after General Groves left, announcements began to be broadcast of the interval remaining before the blast. They were sent by radio to the other groups participating in and observing the test. As the time interval grew smaller and changed from minutes to seconds, the tension increased by leaps and bounds. Everyone in that room knew the awful potentialities of the thing that they thought was about to happen. The scientists felt that their figuring must be right and that the bomb had to go off but there was in everyone's mind a strong measure of doubt. The feeling of many could be expressed by ''Lord, I believe; help Thou mine unbelief.' We were reaching into the unknown and we did not know what might come of it. It can be safely said that most of those present - Christian, Jew and Atheist - were praying and praying harder than they had ever prayed before. If the shot were successful, it was a justification of the several years of intensive effort of tens of thousands of people statesmen, scientists, engineers, manufacturers, soldiers, and many others in every walk of life.
In that brief instant in the remote New Mexico desert the tremendous effort of the brains and brawn of all these people came suddenly and startlingly to the fullest fruition. Dr. Oppenheimer, on whom had rested a very heavy burden, grew tenser as the last seconds ticked off. He scarce breathed. He held on to a post to steady himself. For the last few seconds, he stared directly ahead and then when the announcer shouted 'Now!' and there came this tremendous burst of light followed shortly thereafter by the deep growling roar of the explosion, his face relaxed into an expression of tremendous relief. Several of the observers standing back of the shelter to watch the lighting effects were knocked flat by the blast.
The tension in the room let up and all started congratulating each other. Everyone sensed 'This is it!' No matter what might happen now all knew that the impossible scientific job had been done. Atomic fission would no longer be hidden in the cloisters of the theoretical The bomb is unloaded at the base of the tower. July 13, 1945 physicists' dreams. It was almost full grown at birth. It was a great new force to be used for good or for evil. There was a feeling in that shelter that those concerned with its nativity should dedicate their lives to the mission that it would always be used for good and never for evil.
Dr. Kistiakowsky, the impulsive Russian, (actually an American and a Harvard professor) threw his arms around Dr. Oppenheimer and embraced him with shouts of glee. Others were equally enthusiastic. All the pent-up emotions were released in those few minutes and all seemed to sense immediately that the explosion had far exceeded the most optimistic expectations and wildest hopes of the scientists. All seemed to feel that they had been present at the birth of a new age - The Age of Atomic Energy - and felt their profound responsibility to help in guiding into right channels the tremendous forces which had been unleashed for the first time in history.
As to the present war, there was a feeling that no matter what else might happen, we now had the means to insure its speedy conclusion and save thousands of American lives."
Was the atomic bomb the most effective way to force the Japanese to surrender?
Japan was putting out peace feelers by the summer of 1945. Their defensive position was in complete ruin: naval units gone, air force without fuel, most major army units immobile or cut off overseas. Their economy was in ruins - again lacking fuel, civilians in starvation rations, merchant marine gone, no trading ability, cities racked by conventional bombing. In hindsight we can see that Japan was clearly on the road to collapse and would most certainly have surrendered without an invasion of the home islands, if not in 1945, then in 1946. Nonetheless, hindsight was not available to the USA in 1945. At that time the US leadership had been appalled by the huge casualties to American forces (and Japanese) in the fighting for Iwo and Okinawa. Americans had witnessed mass suicide by Japanese civilians, Japanese soldiers carrying out suicide missions, Kamikazi raids, etc. To most Americans this meant that the Japanese were bent on self destruction rather than surrender. The Americans thus had two choices: (1) Invade the home islands of Japan, thus bringing about enormous (read: many millions) numbers of Japanese civilian dead. Such an invasion would likely have involved the Soviets leading to a partition of Japan similar to that of Germany, Austria, Korea. (2) Try and end the war quickly by shocking the Japanese leadership into quick surrender via the atom bomb. As horrific as the atomic attacks were, they most certainly prevented even more death and destruction from being hurled upon the Japanese by conventional forces.
What did people think of America dropping the atomic bomb?
Well, the Japanese weren't exactly thrilled, but the rest of the world gave 99.9% approval. Maybe the Soviet Union was a bit disappointed because they hadn't taken much territory from the Japanese yet and would have had a greater post-war influence in Asia if they had been able to participate in the occupation.
How did the atomic bomb end World War 2?
Japan was prepared to fight to the last man, woman and child. Only something utterly dramatic would have detered them. The last battle, Okinawa (sp) resulted in the highest casualties to the US Navy in all battles up to that time. The USN had 30 ships sunk! It had 300 ships put out of commission for 30 days or more at that battle. This was out of about 1400 ships in the invasion force. Worse, at the end of October 1945 one of the worst typhoons hit Japan and the surrounding areas. It did extensive damage to our facilities that had prepared fot the invasion of Japan on Okinawa. Had be been prepared for the invasions, we would have suffered a major defeat and losses from this storm. The invasion of the 1st island of Japan scheduled for the 1st of November would have had to have been postponed. The "devine wind" would have saved them again from invasion and only emboldened them to fight on. On the night of March 9-10 1945, 485 B29's burned out 16 square miles of Tokyo and killed about 100,000 people. There is a book called "Flames over Tokyo" that describes the situation on the ground for the inhabitants of Tokyo... They did the math: 485 to destroy Tokyo, 1 each to destroy Hiroshima amd Nagaski. The Japanese knew that we had about 2,000 B29s in the Marianas.
It forced the Japanese to surrender without the invasion of the mainland
How many atomic bombs did the US drop on Japan?
Two atomic bombs were dropped ; one upon the city of Hiroshima and the other upon Nagasaki .
What would the US do with the atomic bombs if they weren't been dropped in Japan?
Historians have long speculated on the course of WWII if the US hadn't dropped two atomic bombs on Japan. At one end of the spectrum is the view that the Japanese war machine was near its breaking point and that its leaders would have surrendered anyway, perhaps only a few months after they actually capitulated. On the other hand, the US War Department developed plans for a worst-case scenario in which the Imperial government, due to its long-held code of honor, chose to fight to the death. Half a million or more Allied troops would have been deployed in a land invasion. They would have met resistance potentially stronger than that put up by the Nazis, with the war possibly having lasted until 1948-1950. In either case the West's focus would have been directed away from European reconstruction for a longer time which likely would have allowed Soviet forces to occupy more territory. In addition, without having seen the horror of atomic destruction there would have been a temptation to use those weapons in some later conflict - after more-powerful bombs had been developed.
It's also been speculated that a Japanese surrender could have been achieved with far fewer civilian casualties if the bombs had been dropped on purely military targets, but again no one can know for sure.
How many atomic bombs did US have in 1946?
By the end of Operation Crossroads in the summer of 1946, the US had built a total of 9 atomic bombs and detonated 5 of them, leaving only 4 in the stockpile. Records obtained by the Bulletin of the Atomic Scientists suggest that by the end of 1946 the US had built 5 more atomic bombs, ending the year with 9 in the stockpile.
While the Hanford reactors had a design capacity of 3 atomic bomb cores every month, its very obvious that they were being operated far below capacity through 1945 and 1946 to minimize neutron irradiation damage to the graphite moderator and/or shutdown for repairs frequently.
What were the effects of dropping the atomic bombs on Japan in World War 2?
After America dropped Little Boy, the hydrogen bomb dropped on Hiroshima, Japan refused to surrender, despite the entire city being reduced to rubble. As a result, America created Fat Man, a phosphorus bomb, and dropped it on Nagasaki. This immediately resulted in an even bigger disaster and the Japanese immediately surrendered.
So in short, the bombings caused major destruction of the cities of Nagasaki and Hiroshima and Japan surrendered after the second explosion.
Did the atomic bomb that was dropped on Japan save lives and end the war?
Overall, the answer is no. This is because in total, it estimate that 175,000 lives were lost. The Atomic Bombs would of saved about 45,000 lives but it would cost 220,000 lives. However, this argument with the use of Atomic Bombs was necessary and a effective way to end World War 2 in the pacific and overall.
What did president Truman decided to use the atomic bomb against Japan?
Harry Truman's justification was that he did it to save the lives of our American soldiers and to end the War between us and the Japanese. He decided to bomb Nagasaki and Hiroshima so that the Japanese would give up. He bombed two giant cities with people who had nothing to do with the war and who were just trying to live instead of hitting the Japanese hard where it hurts, their military. The atomic bomb killed hundreds of thousands of innocent Japanese people instead of attacking their military with people who were ready to die. Japanese attacked our military not our cities with millions of innocent people. Harry Truman had no justification for that.
Where was the first atomic bomb tested in New Mexico?
The first atomic weapon test took place 35 miles southeast of Socorro,NM. [July 2008 population: 8,989], on the White Sands Proving Ground, on July 16, 1945. The test was called "Trinity", and the weapons code name was "The Gadget".
Yes, it was. It was the most powerful and devastating weapon imaginable at the time it was used. It was known that not only the explosion itself but also the resulting radiation would be very destructive. Debates about the use of these weapons will continue for many generations. Whatever one's position, it can be argued that those bombs did hasten the end of the war.
jasmine waz so was emmanuel Norman lol
Dropped atomic bombs on Japan?
Hiroshima was bombed by B-29 'Enola Gay' and Nagasaki was bombed by B-29 'Bock's Car'. They were not carrier-borne (you're thinking of the Tokyo fire-bombing from carrier-borne B-24s). The atomic bomb sorties were flown from the island of Tinian. Over 3
What caualties did the Japanese suffer after the us dropped two atomic bombs on japan?
In total between 150,000 and 246,000 people were sus[ected to be killed during the 2 atomic bombings in World War 2. 90,000-166,000 were suspected to be killed in Hiroshima and 60,000-80,000 suspected to be killed in Nagasaki.
What were the name of the one atomic bombs the u.s. dropped on Japan?
There were 2 atomic bombs, which were dropped onto Japan in 1945. They were called 'Fat Man' and 'little boy'.
What were reasons for the use of the atomic bomb against japan?
The three major reasons for the US to bomb Japan during WW 2 are: 1) The Japanese attack upon Pearl Harbor PRIOR to a declaration of war. 2) The Bataan Death March. 3) Japanese treatment of civilian internees & women from Korea. Richard V. Horrell WW 2 Connections.com
