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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

Why did the US drop the atomic bombs on Japan?

Here are explanations:

  • To put an immediate end to the war
  • The USA was facing the prospect of invading Japan to subdue it. The last few battles, Iwo Jima and Okinawa particularly, were incomprehensibly bloody. Japan had no regard for its own citizens' lives and planned to turn their whole island into a fortress. It was estimated that casualties would be 1 million Americans and half a million British in the first invasion alone. Some cynics say we used it to scare Stalin as well, but the fact remains that they ignored an ultimatum on 27 July 1945 after enduring the worst conventional bombs could do. A powerful argument remains that the Bomb saved allied and Japanese lives.

Discussions:

The Allies demanded unconditional surrender of the Axis. In the Pacific Theater, the Allies, led by the United States, rolled up the Japanese expansion island by island. When Guam was taken, the Allies had a base from which stage an invasion. The estimates of American casualties for an invasion of mainland Japan was in excess of 1 million Americans. Possibly in excess of 2 million Americans. The United States dropped two atomic bombs to save American lives and speed the end of the war. Prior to using the atomic bomb, Japan was given ultimatums to surrender along with warnings of the dire consequences. The Japanese government ignored the warnings. While the use of the atomic bomb was a technological and strategic turning point in both WWII and all future diplomatic and strategic activities, there were more people killed, maimed, and injured during the Tokyo firebombing campaigns than by the atomic bomb.

To force Japan to surrender without further fighting. Japan surrendered very quickly thus saving the lives of over 100,000 American soldiers and perhaps as many as 1,000,000 Japanese who would have died if we had invaded Japan.

The Allies utilized atomic weapons to bring Japan to her knees. As an American, how hard would you fight an enemy if they were invading our nation? I mean literally on the soil of our 50 states? Then imagine how hard EVERY Japanese citizen, man, woman AND child, would be trying to kill OUR men, as we invade their nation.

Tensions were starting to build up in Europe between Soviet Union and its western allies. Since USSR had an overwhelming numerical superiority there, a show of force was needed to convince Stalin to "behave". Besides, the Russians were preparing for an invasion of Japan. I think these considerations were at least as valid back then as saving American lives.

According to some sources, Japan had a military force of over 9 million soldiers. Through battles like Midway, Okinawa, Iwo Jima, Guadacanal, and other "island-hopping" battles, 1.5 million soldiers either were killed or wounded enough so they couldn't fight. That meant that if Operation Olympic (the invasion of the main island of Japan) were to occur we would have to fight every soldier we had defeated before four times over!

Even if we hadn't of dropped the atomic bomb, Hiroshima and Nagasaki would still have been targets for attack. This is because Hiroshima was a large industrial city that contained the 2nd Japanese Army Headquarters, which was in charge of all the defense systems in Southern Japan; Hiroshima also had communication centers for armies, storage points, and troop assemblies. Small industrial plants were also in the outskirts of the city. As for Nagasaki, it was the largest fully operational sea port in Southern Japan, which produced ships, equipment, and relief supplies. There is much other information that can be explained about the reality of dropping the bomb on Japan and this was one 'chunk' of information.

I agree with the guys who were talking about conserving American army resources and manpower. At Iwo Jima there were nearly 30,000 marines KIA. The Japanese lost nearly all of their army there. Imagine that in a place with cities, etc and bigger armies in a homeland .Even if you guys won, the Japanese would never forgive you. More deaths would have been caused than the bombs, and in more cities.

The fact that a lot of Japanese fought to the death because they were never given a chance to surrender, and the fact that after Pearl harbor 13% of Americans said in a poll (13% of voting Americans, that is) that the only acceptable outcome of the war to them was the death of every Japanese man woman and child. Then there are slogans like, "kill Japs, kill Japs and kill more Japs" and somebody said how the main language in Hell by the end would be Japanese.

The Yanks were furious for Pearl Harbor and revenge is the most dangerous reason for fighting for both sides. The Japanese are brave people who see honor in death if the death is good (not in all death, though. Any fool can die in battle. True courage is living when it is right to live and dying when it is right to die). So, IMO, the A-bomb was used to reduce the expected casualty rate and loss of resources (tanks, weapons, etc all cost the taxpayers and government a lot of money) and I'm guessing it probably did for both sides.

World War two ended on August 10, 1945 only four after the Little Boy uranium bomb was dropped on Hiroshima and one day after the Fat Man plutonium bomb was dropped on Nagasaki.

Combined, approximately 128,000 died just due to the massive concussion and explosions caused by the bombs, and about 120,000 suffered from radiation sickness and cancer, many of whom died afterwards. The question is, was it really necessary to drop two atomic bombs on Japan to get them to surrender?

My answer is yes, because of several factors. One is the culture of the Japanese at the time. For centuries the Japanese had a warrior class called the samurai. The samurai followed Bushido, or the way of the warrior, which was an honor code that preaches that honor, duty, and loyalty to the emperor and local warlord are the absolute virtues that can be achieved.

As a result, a loss of honor would mean that the dishonored samurai would be expected to commit Seppuku, or ritualistic suicide, which involves a samurai taking his sword, stabbing himself with it, and cutting out his own liver. The wound was very painful and could take quite a while to die from, anywhere from a few minutes to a week.

The most common way in which a samurai could be dishonored would be by being defeated in battle. However, fighting to the last man and arrow (or in this case, round of ammo) and holding ones position till the death was considered a great honor.

Does this sound like a nation that is willing to give up? By the last years of the war, everyone, men and women, over the age of thirteen was a part of a sort of National Guard, and were under the same rules as the rest of the military, which was in turn fighting under a modified code of Bushido which dictated that they never surrender and leave behind the wounded.

Another aspect of Japan's culture was that of a group mentality. About ninety-nine percent of the Japanese people were, at the time of World War 2, direct decedents from the original nomadic Mongolian tribes that crossed over into Japan from the Korean Peninsula. They inhabited a land of which only twenty percent was flat enough to farm. Entire towns had to work together to maintain tiny rice paddies carved into hillsides that were irrigated by a community network.

Disagreement among the common people against their ruler or with each other was unthinkable and impractical. On the whole, as long as the military oligarchy wanted the war to continue, the majority of the people would be willing to follow through.

The Nuclear Bombs being dropped finally got the military oligarchy to be willing to give up the fighting, and that is what brought them to the peace table, under the condition that the emperor remain in power. Even after the bombs were dropped, the Emperor's speech never mentioned surrender; just that it was in the best interest of Japan to cease fighting. Had America invaded, the Japanese would have kept on fighting unless given the order to stop. Not only would many American lives have been lost cleaning out all of the fighting forces, everyone in Japan over thirteen was a part of that fighting force. The Japanese people would have been decimated to a point of no return.

Even after having two nuclear weapons dropped on them, many of the Japanese military were unwilling to surrender, regardless of the Emperors wishes. In fact the night the Emperor was preparing to surrender a military coup was staged.

It was only the barest of coincidences that prevented this coup from stopping the surrender. Specifically the American military had started giving up that Japan would surrender at all and decided to bomb the last stores of heating oil in the country (with winter approaching).

The flight flew over Tokyo and the city was blacked out, which stymied the coup. Even after the surrender, many Japanese military leaders chose to kill themselves rather than surrender. As the war ended the Japanese were preparing a massive propaganda campaign to rally civilians to resist the expected invasion.

It's uplifting theme "one hundred million will die in defense of Emperor and Nation." A little cultural note: Ten thousand is the largest number that can be represented by a single character. It is commonly used to represent an indefinitely large number. One hundred million is ten thousand squared, in other words, all will die.

To the last man, woman, and child. Would it have succeeded? Not totally. Japan would not have ceased to exist, not everyone would have had the stomach to sacrifice themselves. But many, many would have. Many did in Okinawa. On top of that, the Japanese military showed it's willingness to make sure civilians had their honor preserved (by killing them) both in Saipan and Okinawa.

It is not the least bit unlikely that they would have done the same--more likely more!--on the Japanese home islands. On top of that the naval embargo and the devastation of the Japanese infrastructure would have condemned millions to death by starvation and exposure during the winter.

President Harry S. Truman dropped the bombs on Nagasaki and Hiroshima for one reason: not to end the war with Japan, but to intimidate Stalin, keep him out of the Pacific war, deny him a share of the peace that we were going to impose on Japan. History shows there was probably not one single general officer in that war who approved of it, and they all went public very quickly to denounce their Commander-in-Chief.

When debating the topic of why the US dropped the atomic bombs on Japan, one must first consider the prelude to the decision. Estimates of U.S. casualties to invade the Japanese home islands were expected to be high; this estimate was based on the stiff Japanese resistance encountered on Okinawa. Naturally the primary motivation to drop the weapons was to end the war as quickly as possible.

Some evidence suggests that the Japanese were seeking to end the war and other evidence suggests that a significant faction in Japan sought to continue the war. While tensions with the Soviet Union would mount in the coming years, the general euphoria of defeating Germany still had not worn off and the Soviet Union still hadn't invaded Manchuria, so clearly the decision to drop the bomb wasn't primarily motivated by a desire to intimidate the Soviets or to prevent the Soviets from seizing ground in China/Korea.

In the end, the only way to judge Truman's decision is to look at the information Truman was presented with. There is no clear evidence to show that Truman knew or had any reason to believe the Japanese were going to surrender, he had witnessed a bloody defense of the home islands and was shown high casualty estimates to invade the Japanese home islands.

However, the second atomic weapon was dropped a short time after Hiroshima, after the Soviets had invaded Manchuria, at a point in time when Japan was in general turmoil, its premier field army (the Kwantung Army was in full retreat) and at a time when Japan's fascist regime was in its death throes.

The decision to drop the second bomb MAY have been premature. However, all things considered, please remember that WW2 was a brutal war, it was a long war, it was a war in which armies of all sides freely bombed civilian populations. Without condoning the killing of civilians, please remember that the cities bombed were NOT Tokyo or Osaka; the decision to bomb Hiroshima and Nagasaki shows at least SOME deference for human life within the larger context of the brutality of WW2.

The answer is not that simple but as Americans we can say that it was because they bombed Pearl Harbor, or that we were doing a favor to everyone because an invasion on the mainland would have cost many people their lives, but that is more reasoning than answers.

If we look at all the facts we could see that America was bombing the Japanese cities with the same types of bombs that the American and British air-forces used against the Germans. Also we see that the Japanese were losing the war greater than thought, there was an American blockade around the island stopping all food and oil from coming into the country, and as we all know humans can not live without food and the Japanese tanks, aircraft's and ships need oil to run so that would have help reduce the resistance from the Japanese. Now I am not saying that I am upset with dropping the bomb because part of me is and part of me isn't.

Because Japan would not put an end to the war. They refused to surrender because they still believed that they could force better terms of surrender if they held out longer. They believed that they could kill over a million U.S. troops if we attempted to invade the Japanese mainland. Estimates varied greatly depending on who ran the numbers.

There was no question that Japan could not be allowed to maintain their military so that they could rebuild just to go after the Pacific again. The Allies had just seen a similar mistake that resulted in the German invasion of Europe and the Allies vowed to not let that happen again. Unconditional surrender was demanded and Japan would not surrender, even after their cities burned and hundreds of thousands died from conventional bombing. Nuclear devices had just been created that were capable of causing unimaginable damage to life and property. Imagine what would have happened back home if the citizens found out that we had a device that could have stopped the war and the President didn't use it and instead almost a million troops were killed in an invasion attempt. Imagine if one of the dead had been YOUR relative, would you be very tolerant that the President didn't use the new weapon? It was an impossible decision.

How was the decision made to drop the atomic bomb on Nagasaki?

At the end of World War II, few questioned Truman's decision to drop the atomic bombs on Hiroshima and Nagasaki. Most Americans accepted the obvious reasoning: the atomic bombings brought the war to a more timely end. They did not have a problem with over one hundred thousand of the enemy being killed. After all, the Japanese attacked America, and not the other way around. In later years, however, many have begun to question the conventional wisdom of "Truman was saving lives," putting forth theories of their own. However, when one examines the issue with great attention to the results of the atomic bombings and compares these results with possible alternatives to using said bombs, the line between truth and fiction begins to clear. Truman's decision to use the atomic bomb on Japan was for the purpose of saving lives and ending the war quickly in order to prevent a disastrous land invasion.

Why was the dropping of the atomic bomb so controversial?

Because it killed so many people at once and left radioactive debris. Some people argued that Japan would have surrendered if they had been shown a test firing of the bomb and that this would have been more humane. Others argue that the detonations saved more lives (fighting Allied and Japanese soldiers and Allied prisoners of war) than were taken by the bombs and that this justifies the action. Certainly the two bombs put and end to the war.

How many times did Einstein fail to make the atomic bomb?

I believe Einstein didn't actually "make" an atomic bomb; he did give some theoretical insight that made it possible to develop it, and he wrote some influential letters.

Did the atomic bomb of hiroshma miss its target and instead hit a hospital?

It really doesn't matter what the target was in Hiroshima. Virtually everything was destroyed by the atomic bomb.

When did the atomic bomb land on the US?

The first nuclear explosion (Trinity test) was on a 100 foot steel tower in New Mexico (but was not dropped).

The first atomic bomb dropped on US soil was on Frenchman Flat on January 27, 1951 in the Nevada Test Site. Above ground tests continued there until July 17, 1962. Underground tests continued until September 23, 1992. Underground tests of subcritical masses continue to this day.

A variety of underground tests were performed in several states including Alaska, Colorado, and New Mexico.

How did the effects of the atomic bomb differ from the effects of other bombs?

The atomic bomb did a lot of damage to the city Hiroshima and killed 14000 people

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Answer

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Physically: instant vaporization of all combustible and liquid materials near "ground zero".

Politically: the emperor and his generals refused to surrender following the first bomb blast, telling their people that the Americans only had one. After the second bomb the Emperor still didn't want to surrender, but finally agreed. Even then, they wanted to negotiate for the best terms of surrender rather than be concerned about the death of their citizens.

The dropping of the atomic bomb initiated vaporization at an instant (turning to carbon), total devastation through Hiroshima and Nagasaki and caused radiation to kill many more people who died of radiation poison or cancer

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Answer

Radiation for a long period of time until now since World War 2 the day of dropping atomic bomb on Hiroshima and Nagasaki. Abnormal babies were frequent in the area near the atom bomb had blast. Cancer rates had gone higher in these areas.

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None other explosives had never had those results.

Did the atomic bomb effect the worlds militarily today?

Here's a background
  • If the Japanese did not die right away from the bomb, the effects of the radiation did. Many got cancers like Leukemia and other radiation illnesses. Also, some people faced birth defects.
  • "The Mushroom Bomb" killed about a forth of a million people
  • It killed people from less than 100 miles away and farther
  • The Bomb was dropped in both Hiroshima and Nagasaki, military centers or industrialized cities.
  • HIROSHIMA: 73,000 people out of a population of 365,000 people die
  • NAGASAKI: 37,500 people out of a population of 200,000 people die
  • This all happened because stupid Hitler decided one day he wanted to rule the world so tried taking over Europe including our pal Great Britain, or the United Kingdom. (***Hitler basically caused World War II. If he hadn't started it, we would not have been involved in the war where we had to bomb Japan. Please know that Hitler is the indirect reason for the atomic bomb while President Truman was sort of the direct reason.
  • ^President Truman wanted a quick end to the war. He also thought that less Americans would have to die. Don't forget that this was about four years after Japan had attacked Pearl Harbor. Also, we were not able to fight with soldiers because we needed way more soldiers than we had. It would have taken 6 months to get enough men to fight.
  • U.S.A threatened Hidiki Tojo to surrender or else we will use a very powerful weapon on his country, he didn't surrender
  • April 6, 1945 we dropped the first atomic bomb on Hiroshima
  • Tojo still didn't surrender
  • The Japanese would not surrender because they wanted to protect their emperor
  • We dropped another bomb on April 9, 1945
  • Before we dropped those bombs Tojo was helping Hitler rule the world by trying to take over Asia bit by bit
  • Tojo asked for a cease fire we said, " Ok if you think you have enough men."
  • The War was over in a matter of 3 months
  • September 2, 1945 W.W.II, the worst war ever was over!
  • Of course my friends, the Allies won thanks to the atomic bomb

In addition to this, the balance of power is now controlled by the countries' nuclear power. After the end of the second world war, countries rushed to make their own bombs to balance out the power. For a couple of years, the United States were the world's one and only superpower. Once Russia (or the Soviet Union at this point in history) achieved nuclear power the Cold War started up. The Cold War was basically Russia and the US pointing their bombs at each other daring the other to fire first. Nothing came out of this stand-still but during these times the threat of World War III and a nuclear war were very real.

How many atom bombs does India have?

They have enough to cause a real problem. I am not sure the United States even knows. It just takes one.

The explosion of an atomic bomb by the soviet union in 1949?

The atom bomb testing done in 1949 by the Soviets was one of five or six others done from 1949 to 1955 or 56. The US discovered it when they saw it in their "spying" on Russia. They knew Stalin had achieved his goal to build an atomic bomb and missiles.

Why did the atomic bomb in nagasaki have such a horrific outcome?

The bomb was a plutonium implosion type. The blast was large and the radiation fallout is deadly. Most of the people that died were from radiation poisoning.

Was dropping the atomic bomb on Japan the right thing to do?

Because it abruptly put an end to a bloody war which they started by bombing our Navy at Pearl Harbor. They were irrational fanatics, bent on expanding their empire and would have entrenched and fought to the death had we invaded. Countless thousands of American troops and those of our allies as well as Japanese troops and civilians themselves were saved by our action. We simply wanted the war to be "over" so President Harry Truman "explained" it to them in a language they apparently finally understood. I was 10 years old at the time and, in those days, we did not play "pussyfoot" war with our known enemies as our dysfunctional liberal politicians prefer us to do now. After being effectively defeated and driven back to Japan, the Japanese military refused to surrender and the Japanese Emperor was encouraging his private citizens to protect their homeland from invasion. The rest of the world considered that the Japanese efforts to take over the islands of the Pacific were unacceptable, especially since they had been so ruthless and deceitful. When Japan refused to surrender, even after severe bombing of the major cities, it was calculated that between 750,000 to 1,000,000 troops would loose their lives in an effort to invade Japan, and that at least as many Japanese citizens would die as well. Just forgetting about the Imperial attempts to take over the Pacific was not an option. The world demanded that the Japanese war machine be dismantled to avoid a second round in a few years. The league of nations had made that mistake with Germany at the end of WW1, and Germany rebuilt and tried to take over Europe again by invading other European nations in WW2, so most of the world did not want Japan to have a second chance. After looking at the number of probable deaths, it was determined that invasion was not a good idea. At about the same time, the Manhattan project had successfully tested a nuclear device. The military was given an opportunity to end the war without the loss of any more Allied lives. It was decided that if the citizens of the U.S. were to discover that the military had been forced to invade Japan and we had lost a million soldiers at a time that we had a device that would end the war without any further loss of life, the nation would have become enraged at the military and the government, and justifiably so.

Where and when was the first atomic bomb dropped?

The location of the first atomic bomb which was dropped was on Hiroshima on August 6th 1945.

When did the Atomic Bomb on Hiroshima and Nagasaki start?

By executive order of President Harry S. Truman the U.S. dropped the nuclear weapon "Little Boy" on the city of Hiroshima on Monday, August 6, 1945, followed by the detonation of "Fat Man" over Nagasaki on August 9. These are the only attacks with nuclear weapons in the history of warfare.

Was the first atomic bomb dropped from a plane?

The first atomic bomb test was done on a 100 foot tall tower, not dropped from a plane (July 16, 1945).

The only atomic bombs used in war were dropped from planes (August 6 & 9, 1945).

The first atomic bomb test after the end of WW2 was dropped from a plane (July 1, 1946).

What US president May the decision to use atomic bomb's owns a pair?

President Harry S. Truman made the decision to use the atomic bomb on Japan to end WW II

How does Krakatoa's eruption compare to an atomic bomb explosion?

First you have to realize that the yield of the explosion of an atomic bomb is not a fixed value, the US has designed and fielded pure fission atomic bombs with yields as low as about 10 tons of TNT to as high as 500 kilotons of TNT and using fusion in the design yields as high as 25 megatons were designed and fielded. The USSR designed a 100 megaton bomb (but only tested it at 50 megatons and never actually fielded it). Edward Teller proposed designing a gigaton range bomb but the design was rejected as having no military value (most of the blast of such a bomb would just go upward, just blowing all the atmosphere directly above the burst off into space). There is no theoretical limit for an atomic bomb that uses fusion to drive the fission of depleted uranium (U--238 which cannot support a neutron chain reaction but will fission from high energy fusion neutrons, and is plentiful).

The energy released from the 1883 explosion of Krakatoa has been estimated to be equal to about 200 megatons of TNT (about 4 times that of the largest atomic test ever done: the USSR's 50 megaton device mentioned above). But unlike an atomic bomb Krakatoa's fallout was not radioactive.

What city was destroyed by an atomic bomb in 1945?

Hiroshima and Negasaki in Japan were the two cities destroyed my an atomic bomb in 1945.

Were there atomic bombs in 1950's?

On August 2, 1939, just before the beginning of World War II, Albert Einstein wrote to then President Franklin D. Roosevelt. Einstein and several other scientists told Roosevelt of efforts in Nazi Germany to purify uranium-235, which could be used to build an atomic bomb. It was shortly thereafter that the United States Government began the serious undertaking known then only as "The Manhattan Project." Simply put, the Manhattan Project was committed to expediting research that would produce a viable atomic bomb.

Yes, I believe they used it in 1945 July 16.

Why was the US in a rush to build an atomic bomb?

The fear that Germany was already well on the way to building an atomic bomb and could make first use of them against either England or the USSR at any moment.