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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
How fast can the atomic bomb go?
The bomber that dropped it was cruising at about 425 miles per hour. the explosion itself would expand at a rate of one mile per second or 3600 MPH as do all atmospheric explosions. the interval between the flash and the bang determines range. ( this would not work with an underground nuclear test shot, obviously. what a morbid question, but ballistics are influenced by atmospheric constants of the speeds of Light and sound, the latter being Mach"s constant- 760 MPH at sea level.
What country was the first to get the atomic bomb?
In 1978 a Magic decrypt of a diplomatic signal from the Japanese embassy in Stockholm reported the astonishing news to Tokyo on 12 December 1944 that Nazi Germany had the Atomic bomb and had already used it in June 1944 south of Kursk to wipe out the Soviet 19th Division (19th Voreneyzh Rifles Div ?) and later repeated it's use in the Crimea.
It is impossible to dismiss as a hoax because it was a secret encyphered radio transmission which the Americans secretly de-cyphered and copied. The signal is held in US National Archives. It's text reads:
" Part 1
This bomb is revolutionary in its results, and will completely upset all ordinary precepts of warfare hitherto established. I am sending you, in one group, all those reports on what is called the atom-splitting bomb. It is a fact that in June of 1943, the German Army tried out an utterly new type of weapon against the Russians at a location 150 kilometers southeast of Kursk. Although it was the entire 19th Infantry Regiment of the Russians which was thus attacked, only a few bombs (each round up to 5 kilograms) sufficed to utterly wipe them out to the last man.
Part 2.
The following is according to a statement by Lieutenant-Colonel UE [ ISHIWARA ]
KENJI, advisor to the attaché in Hungary and formerly in this country, who by chance saw the actual scene immediately after the above took place:
"All the men and the horses the explosion of the shells were
charred black and even their ammunition had all been detonated."
Moreover, it is a fact that the same type of war material was tried out in the Crimea,
too. At that time the Russians claimed that this was poison-gas, and protested that if
Germany were ever again to use it, Russia, too, would use poison-gas.
Part 3.
There is also the fact that recently in London - in the period between October
and the 15th of November - the loss of life and the damage to business buildings
through fires of unknown origin was great. It is clear, judging especially by the
articles about a new weapon of this type, which have appeared from time to time
recently in British and American magazines - that even our enemy has already begun
to study this type. To generalize on the basis of all these reports: I am convinced that the most important technical advance in the present great war is in the realization of the atom-splitting bomb. Therefore, the central authorities are planning, through research on this type of weapon, to speed up the matter of rendering the weapon practical. And for my part, I
am convinced of the necessity for taking urgent steps to effect this end.
Part 4.
The following are the facts I have learned regarding its technical data:
Recently the British authorities warned their people of the possibility that they might
undergo attacks by German atom-splitting bombs. The American military authorities have likewise warned that the American east coast might be the area chosen for a blind attack by some sort of flying bomb. It was called the German V-3. To be specific, this device is based on the principle of the explosion of the nuclei of the atoms in heavy hydrogen derived from heavy water. (Germany has a large plant in the vicinity of Rjukan, Norway, which has from time to time been bombed by English planes.). Naturally, there have been plenty of examples even before this of successful attempts at smashing individual atoms. However, as far as the demonstration of any practical results is concerned, they seem not to have been able to split large numbers of atoms in a single group. That is, they require for the splitting of each single atom a force that will disintegrate the electron orbit.
Part 5.
as far as the demonstration of any practical results is concerned, they seem not to have been able to split large numbers of atoms in a single group. That is, they require for the splitting of each single atom a force that will disintegrate the electron orbit. On the other hand, the stuff that the Germans are using has, apparently, a very much greater specific gravity than anything heretofore used. In this connection, allusions have been made to SIRIUS and stars of the "White Dwarf" group. (Their specific gravity is 1 thousand, and the weight of one cubic inch is 1 ton.) In general, atoms cannot be compressed into the nuclear density. However, the terrific pressures and extremes of temperature in the "White Dwarfs" cause the bursting of the atoms; and
Part 6.
There are, moreover, radiations from the exterior of these stars composed of what is left of the atoms which are only the nuclei, very small in volume. According to the English newspaper accounts, the German atom- splitting device is the NEUMAN disintegrator. Enormous energy is directed into the central part of the atom and this generates at atomic pressure of several tons of thousands of tons (sic) per square inch. This device can split the relatively unstable atoms of such elements as uranium. Moreover, it brings into being a store of explosive atomic energy. A-GENSHI HAKAI DAN. That is, a bomb deriving its force from the release of atomic energy."
The conventional view of history however is that America was first to use nuclear weapons in War against Hiroshima on 6 August 1945
How did the Soviet Union acquire the atomic bomb?
They built their own based on information acquired through espionage from people on the manhattan project or connected to them such as Klaus Fuchs, Ted Hall, and the Rosenbergs among others.
There has been no evidence presented at all to prove that Oppenheimer supplied the Soviet Union with information about the atomic bomb.
Atomic bomb hit this city on kyushu?
Nagasaki
It was originally to have been Kokura, but heavy overcast prevented a visual bomb run so the planes diverted to the secondary: Nagasaki.
What was the world like before the atomic bomb?
Leukemia, Lymphoma and Multiple Myeloma, Nervous system tumors and their response relation were observed for all solid nodules, adenoma, and nodules without histological diagnosis, autoimmune hypothyroidism, stomach tumors and breast diseases. The population has a long follow-up (50 years) and includes both sexes and all ages of exposure, allowing a direct compilation of risks by these factors. the population has a long follow-up (50 years) and includes both sexes and all ages of exposure, allowing a direct compilation of risks by these factors. Because of the use of Japanese family registration system, mortality data are virtually complete for survivors who remained in Japan.
The result in the coral reefs in the Bimini Island who were demolished by nuclear blast came alive again after 50 years.
Did the pilot who dropped the second atomic bomb on Japan commit suicide?
Taking the question simply as it is asked - - the answer is, no.
* One crewman, a Major Ferebee ihad a nervous breakdown after the war, he was the bombardier who actually released the bomb and all the havoc this raised. * The craft's Command Pilot, Colonel Tibbets, died of natural causes a few years ago. It is true that psychiatric casualties ran high among Bomber crews owing to destruction of civil or noncombatant targets. It should be understood ( this was misrepresented in the film about the misson (Above and Beyond) that the target, Hiroshima, offered no resistance by flak or fighter intercepts.
Additionally, no member of the crew of the Enola Gay received the Congressional medal of Honor as suggested in Above and Beyond.
What were 3 bad reasons for dropping the atom bomb?
Firstly, to end WW2 as soon as possible. By using a nuke (atom bomb), it has saved a potential of another 3 more months of WW2 as in Japanese offical record. (Some Japanese fell that by September to November, Japanese might have surrendered but defintely would not refuse to surrender after the year 1945.) This 3 months might make the Japs more cruel to China, SEA (South East Asia), Pacific and Korea for "revenging." Secondly, to save many soldiers life, especially US and to punish the Japs severly for the attack of Pearl Harbor. Thirdly, possibly to test the Uranium bomb. Note: Before the actual use of nuke, the US had tested a plutonium (now man-made element as it had extinct) bomb in a desert. The US had enough supply of Plutonium and therefore, a uranium bomb was not able to test as the number of uranium US have is only enough for a bomb. Hence, the bombing of Hiroshima is a good test for them. (The Nagasaki one , Fat Man was again a Plutonium Bomb.)
Hiroshima was in ruins. The T-bridge's barriers had been knocked awry; utility poles stood at odd angles, and familiar landmarks were gone or unrecognizable. Buildings-even strong modern structures-had suffered significant damage, some pushed off their foundations, some gutted by fire, others utterly destroyed. Many steel and concrete buildings appeared intact at first glance, but their outer walls hid internal damage due to the downward pressure of the air burst. Cemeteries were uprooted, and churches had become rubble.
Rebuilding efforts over the decades have been fruitful. There has so much rebuilding and new buildings that the count was lost. Nowhere you fill that information.
Who first developed and introduced the atomic bomb?
The first blueprint for the weapon was written in Britain and how the first feasibility studies were carried out at British universities by British scientists. He told how all the data and discoveries were given freely and promptly to the Americans, even before they entered the war, and how in 1941 Winston Churchill established a British A-bomb programme. Then, as the vastly bigger US Manhattan Project got under way after Pearl Harbor, Perrin explained how most of Britain's top bomb scientists transferred to the United States.
Britain and the Atomic Bomb, as Perrin's hurried summary was entitled, was a valiant flag-flying effort and it had some impact on postwar opinion in Britain, but in the wider world it was comprehensively outgunned. Today, besides a few earnest historians, few people anywhere think of the A-bomb as anything other than an American creation.
___________________
No one person 'developed and introduced' the atomic bomb. Work on a possible atomic bomb ran concurrently in Germany and Britain from the late 1930s onwards. However, it only became viable with the Manhattan Project.
Who dropped the atomic bomb on Japan during World War 2?
The atomic bomb was the decision of President Harry S. Truman. He wanted to end the world war II against the Japanese and the U.S. because Japanese refused to surrender.All and all, it ended as the U.S. showing the Japanese that we were a threat and with that, world war II was ended.-------Hope this helped =-)
Which city was the atomic bomb drop in Japan?
- On August 6, 1945 Hiroshima was the primary target cityof the Little Boy enriched uranium atomic bomb and the bomb was dropped there.
- On August 9, 1945 Kokura was the primary target city of the Fatman plutonium atomic bomb, however due to heavy smoke cover from a nearby city that had been firebombed the night before it was not possible for the bombardier to identify the aim point and it was decided to proceed to the secondary target.
- On August 9, 1945 Nagasaki was the secondary target cityof the Fatman plutonium atomic bomb and the bomb was dropped there, despite heavy cloud cover making it difficult for the bombardier to identify the aim point (as it was the bombardier identified the wrong point, resulting in the Fatman being dropped about 1.9 miles from the planned aim point). The aircraft did not have enough fuel left to consider proceeding to the tertiary target city.
How far do you have to be to survive an atomic bomb attack?
It depends on how many kilotons the bomb has which is pretty much literally its destructive power. The atomic bomb dropped on Hiroshima during World WarII was called little boy and had either 25, 30, or 35 kilotons(sorry i can't remember the exact amount) and reached about 0.5 or 1 mile from where it was dropped in all directions. Little boy was the first atomic bomb ever used. Hope this answers your question correctly =)
How many people were killed instantly by the atomic bomb in nagasaki?
On August 6, 1945 the nuclear weapon Little Boy was dropped on Hiroshima ,directly killing 80,000 people and completely destroying approximately 68% of the city's buildings.an estimated 60,000 more people died from injuries or radiation poisoning.
What two city in japan were attacked with the atomic bombs?
The two cities of Japan which were hit by the atomic bomb by America were "NAGASAKI" and "HIROSHIMA".
What was original target of second atomic bomb?
The bomb was initially designed to be used against Nazi Germany, largely because it was feared that Hitler was developing a nuclear weapon of his own (as indeed he was, although Nazi development of the H-Bomb was not as far advanced as the Allies believed). The original target was thus to have been Berlin, but the War in Europe ended without this becoming necessary. However, the Japanese fought on in the Far East, and it was known that they would not surrender without drastic action (in Japan, surrender to an enemy is considered to be a huge disgrace. Most Japanese soldiers preferred to die rather than surrender, and many committed suicide rather than face capture). The Pentagon estimated that a conventional invasion of Japan would cost over 1 million Allied servicemen's lives, and had a choice of this or the use of the newly-developed A-Bomb. They chose the latter option.
The previous answer is absolutely correct, tactically speaking. Technically speaking the first target of the atomic bomb was the desert of Alamogordo, New Mexico, the Trinity site. At 5:29:45 a.m. Mountain War Time on 16 July 1945, the first atomic weapon was detonated atop a 100 foot tower. The site was declared a national landmark in 1975, and is now open for tours.
Why did Japan drop a bomb on Hawaii?
It's because Japan thought they could beat us. Japan conquered a large part of Asia and the Pacific to secure the nature resources and land which their country lacks. By pushing western interests out of the region, they could secure their empire and join the ranks of world super powers. Considering things like general Yamamoto's plan to attack the Panama canal, the Japanese were an extremely formidable side to face.
When did the first atomic bomb drop?
The U.S. dropped both atomic bombs in the year 1945. The first one was launched on the 6th of August and hit Hiroshima. The second was launched three days later on the 9th of August and hit Nagasaki.
Who decided to use the atomic bomb?
Most likely Franklin D. Roosevelt in the last couple months of his life. He had authorized the program to build them and kept both the project and plans for possible use classified at such a high level that none of his Vice Presidents knew anything about it. Even Harry S. Truman knew nothing of it until several hours after being sworn in as President following Franklin D. Roosevelt's death.
After his briefing on the status of the project and Franklin D. Roosevelt's plans (which the military was already beginning to incorporate into their war preparations for the invasions of Japan) Harry S. Truman obviously saw no need to change anything and simply allowed things to proceed just as they would have had not Franklin D. Roosevelt died.
Harry S. Truman's one real action on the atomic bomb was to cancel the existing authorization for the usage of the atomic bomb, following the Japanese announcing they were willing to surrender.
How does the atomic bomb make an explosion?
Atomic bombs contain material capable of undergoing fission. Fission is a process whereby the nuclei of large unstable elements such as plutonium or uranium split into two smaller daughter nuclei, converting some of their mass to energy, which results in a large amount of heat. Fission naturally occurs in all samples of material capable of undergoing it, but it is the rate which allows heat to be released in a controlled manner, as in a nuclear reactor, or in the runaway explosion of a nuclear bomb.
The unstable nuclei which undergo fission are not normally present in high numbers in the radioactive material, due to their quick decay into daughter nuclei. Instead, they are created by the collision of a free neutron with a more stable nucleus, such as U-235. The now slightly larger nucleus (in this example U-236), rapidly undergoes fission, forming daughter products, giving off energy and releasing 3 more neutrons. These neutrons can then go on to hit further U-235 atoms and cause further fission, in a process known as a chain reaction. Although theoretically this means that the reaction will proceed at a faster and faster rate as more and more neutrons are released, in most cases the concentrations of U-235 atoms are low enough that most neutrons do not go on to collide with them and allow the reaction to proliferate. However, if U-235 is present in sufficient concentrations, and at a sufficient (critical) mass, then enough neutrons will be absorbed that once started the reaction will rapidly proceed to completion, releasing vast amounts of energy. This explains the importance of enriching Uranium (increasing the ratio of U-235 to U-238, which does not undergo fission). If Uranium is slightly enriched, then it can provide a suitable fuel for nuclear power stations, able to continue a fission reaction without letting it run out of control. However, if it is highly enriched (around 80% U-235), then the initiation of a fission reaction will result in a rapid runaway chain reaction releasing huge amounts of energy - the explosion.
This presents a problem, as the material must be enriched in advance of preparing the device. The material must therefore be arranged in the device in such a way that it does not allow a reaction to begin until some change is brought about to make it achieve a critical mass on detonation. For example, the Hiroshima bomb was made of 2 sections of fissile material, neither of which had a critical mass by itself. On detonation, a conventional explosive fired one section into the other section, causing the now larger sample of material to obtain a critical mass and undergo a chain reaction.
How long was the atomic bomb that was dropped on Hiroshima?
"Little Boy" was the codename of the atomic bomb dropped on Hiroshima on August 6, 1945 by the Boeing B-29 Superfortress Enola Gay, piloted by Colonel Paul Tibbets of the 393d Bombardment Squadron, Heavy, of the United States Army Air Forces.
Up to August 6th, occasional bombs, which did no great damage had fallen on Hiroshima. Many cities roundabout, one after the other were destroyed, but Hiroshima itself remained protected. There was almost daily observation planes over the city but none of them dropped a bomb. The citizens wondered why they alone had remained undisturbed for so long a time. There were fantastic rumors that the enemy had something special in mind for this city, but no one dreamed that the end would come in such a fashion as on the morning of August 6th.
Perhaps a half-hour after the explosion, a procession of people began to stream up the valley from the city. Toward noon, our large chapel and library are filled with the seriously injured. The procession of refugees from the city continues. Soon comes news that the entire city has been destroyed by the explosion and that it is on fire.
On what date was the first atomic bomb used?
July 16, 1945 the first atom bomb called "Gadget" was tested in New Mexico near Alamagordo.
Who was the man in charge of the team building the atomic bomb?
- In Germany, Werner Heisenberg; project failed to produce a bomb
- In US, J. Robert Oppenheimer; project succeeded
- In USSR, Igor Vasilyevich Kurchatov; project succeeded
- In UK,
- In France,
- In China,
- In Israel,
- In India,
- In Pakistan,
- In North Korea,
- In Iran,
- etc.
What was the blast radius of the Nagasaki atomic bomb?
See: Atomic bombing of Hiroshima and Nagasaki.
The first atomic bomb was aimed at what city?
The first atomic detonation was at Los Alamos National Laboratory in Los Alamos, New Mexico. This was for testing purposes.
The first city to be attacked with an atomic bomb as an act of warfare was Hiroshima, Japan. It was bombed on August 6, 1945 by American forces.
Which U.S. President gave the order to drop the atomic bombs on Hiroshima and Nagasaki?
Harry S. Truman, the 32nd President of the United States of America, gave the order to drop the atomic bombs "Little Boy" and "Fat Man" on Hiroshima and Nagasaki, both major cities in Japan. That order was relayed by the War Department on July 25, 1945, only nine days after the "Fat Man" type bomb was successfully tested at Alamagordo, New Mexico, and one day before the "Potsdam Proclamation". "Little Boy" was dropped on Hiroshima on August 6, 1945, and "Fat Man" was dropped on Nagasaki on August 9, 1945.
After hard-line factions in the Japanese government tried to keep the war going, Emperor Hirohito of Japan formally surrendered in a public address on August 15, 1945, ending the war between the U.S.A. and Japan.
