Good reasons of having an atomic bomb?
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.
What was the name written on the atomic bomb World War 2?
The two atomic bombs dropped on Japan in World War 2 "Fat Man" and "Little Boy."
Where were atomic bombs used in World War 2?
The Japanese cities of Hiroshima and Nagasaki.
Hiroshima and Nagasaki, Japan were each bombed by one atomic bomb during World War II.
Nagasaki and Hiroshima Japan
In the United States.
There were two atomic bombs dropped in WWII in attempt to end the war with Japan.
The first was dropped on Hiroshima, and a second was dropped on Nagasaki.
Japan
They were dropped over Japan.
The reasoning behind America's decision to drop atomic bombs on Japan was that?
The USA hoped to end the war with Japan sooner, rather than the wearying business of capturing more and more islands at great cost to the manpower of the American armed forces. And indeed that's what happened, Japan surrendered a few days after the second A-bomb was dropped on Nagasaki.
What time did the little boy the atomic bomb hit hiroshima?
Yes. Little Boy, the first of two atomic bombs used in World War 2, was dropped on Hiroshima.
The plane that delivered the atomic bomb?
Many later test shots were dropped from B-29s, B-50s, B-36s, B-47s, B-58s, B-52s, etc.
How much did making the first atomic bombs in us cost?
I presume you already have a known-good (i.e. working and tested) bomb design, and sufficient weapons-grade bomb fuel (U-235/Pu-239 and possibly H2/H3 and or other exotics). I'll group the weapons into a couple of categories, based on their manufacturing difficulty.
There are two cost estimates given for each category: the first assumes you
already have the manufacturing equipment needed, and are only buying materials (other than the bomb fuel), while the second assumes you must also acquire the machinery needed to make the bomb parts, and/or obtain some the bomb parts commercially.
Crude A-bomb: This category is exclusively the very basic "gun-type" Uranium-fuel fission weapon, with yields of < 10k; they have a a moderate probability (maybe 1 in 2 or 1 in 3) of working properly. You would need access to a professional-quality machine shop. $20,000 if you have access to one, or maybe $100,000 to buy access/custom order parts from suppliers.
Functional A-bomb: This category includes all pure fission weapons, constructed with a very high-quality parts. Here you get a U-based weapon of < 30kT, or a Pu-239 implosion weapon of 20-50kT, with a relatively high level of reliability (90%+): $1 million, or $10-20 million if you have to acquire the high-tolerance machine tools and custom electronics.
Functional Advanced Weapon: This included boosted (H2/H3) fission weapons,
hydrogen fusion weapons, and hybrid fission-fusion-fission weapons, with yields from 300kT to 5 MT. $2-5 million, or $100+ million to get the manufacturing capability.
See the related question below, if you are looking for a discussion as to how expensive/complex it is to design a bomb, build the infrastructure required to produce the nuclear fuel, and then test and manufacture a reliable weapon.
How big is an Atomic bombs explosion?
Depending on the yield and type of detonation, a nuclear weapon detonation can have a radius of several hundred feet to several hundred miles.
Nuclear weapons have been developed of the size as small as a small suitcase, to weighing several tons.
An example of a typical Cold War era weapon in the five megaton range with a surface burst would produce a blast crater approximately a mile and a half wide, and half a mile deep, with a blast radius of about fifty miles. Consider that for a moment, then consider that the Soviet Union at its height claimed to have developed a weapon with a selectable yield that could be as large as 100 megatons. They did test the device, air burst near the Arctic Circle in the 1950's, and the effects were felt several hundred miles away.
A little bit more about yield and burst:Nuclear weapons have yields of under 1 kiloton (the M-28/29 Davy Crockett Tactical Nuclear Recoiless Gun--also referred to sometimes as a "nuclear grenade"--circa 1955, fired the M388 warhead with a yield of .001 - .002 kiloton) to at least 50 megatons (the Soviet Tzar Bomba was said to have a yield of100 megatons). A one megaton device is relatively small but still can cause tremendous devastation. The bombs dropped on Hiroshima and Nagasaki were in the 20 kiloton range (Fat Man was larger, estimated at around 22 kiloton, Little Boy was estimated at around 15 kiloton).During the height of the Cold War, much of the US would have been expected to receive missiles of at least 5 megaton payloads. A five megaton surface burst blast will leave a crater approximately 1½ miles across and ½ mile deep. The blast range of such a weapon would send a wave outward at about 250,000 feet per second (initially...quickly dropping to approximately the speed of sound) for a thirty to fifty mile radius, depending a bit on landforms, falling off in speed as it expanded outward of course.
This leads of course to the second element, burst:
There are three types of nuclear burst: air, surface, and subsurface. The type of burst that causes the greatest amount of physical damage is a surface burst device. This is a weapon that is designed to detonate at impact. The greater destructive force is caused by such close proximity to the ground, where the detonation is concentrated into the ground and ejects debris upward and out in the dramatic "inverted bowl" form that can be seen in much of the test detonation footage.
The second least physically devastating form, or potentially lessor physically devastating form is the air burst. An air burst detonation transmits the force of the blast equally around it. Depending on the altitude at which it fires, an air burst may cause great to no physical damage to people or structures on the ground. Again at the height of the cold war, it was estimated that two Hydrogen devices detonated at high altitude over the US would have caused an EMP (Electromagnetic Pulse) that would have fried all electronic devices in the US, Mexico, and much of Canada. However, even a small hydrogen device fired at lower altitude could create a blast wave that would essentially scrub the ground clean in the blast radius, but would leave no crater, or a minimal crater in its wake. This was the idea essentially behind the Neutron Bomb; one that when detonated left most structures intact outside of the immediate blast zone, but killed by the high radiation it released, leaving the territory essentially clean for occupying troops.
The least devastating form, or least readily visibly devastating form of blast is the sub-surface detonation. Sub-surface devices were developed for attacking underground, primarily "hardened" targets such as bunkers and silos. A small to medium subsurface burst will effectively destroy an enemy stronghold several hundred feet below ground but can leave the surface largely undisturbed. Larger detonations in the 100's of kiloton to the megaton range can leave large subduction zones where the surface above the detonation drops to fill in the void left by the detonation. This of course depends again upon the yield, and also the depth at which the detonation is set.
What war was the atomic bomb dropped on Hiroshima?
You r idiot. Perl Harbor 3000 victims, Hiroshoma & Nagosaki 250.000/ Of course, It's so revelant.
Is the atomic bomb the most powerful bomb in the World?
No. The hydrogen bomb is the most powerful bomb in the world.
The first atomic bombs split atoms of Uranium and/or Plutonium.
Later development in theory and technology have made the Hydrogen bomb possible.
This is in fact a 'normal' atomic bomb with a core of hydrogen. When the Atomic bomb goes off, this create an immense pressure on the hydrogen. This pressure (and heat) causes a fusion reaction of Hydrogen atoms.
A 'relatively' small atomic bomb can trigger a quite large payload of hydrogen fusion material.
Further developments of this massive destructive weapon has been to implement yet another core with radioactive material filled with more hydrogen. This inner core get super compressed by the first explosions, something of which drastically adds to the speed of material being consumed. Explosion being amplified tenfold.
All such powerful devices are named 'nuclear' devices or nuclear bombs.
Some are mostly a fission bomb, and others are mostly a fusion bomb.
The fusion bombs are more powerful than fission bombs alone when comparing size and weight of 'stuff that go boom'
Both fission and fusion bombs are considered atomic bombs, and their kind is among the most powerful devices known to man today.
In theory, it should be possible to make an Antimatter payload. Something like a few grams could rival the energy released by the most powerful bombs today.
What did Hiroshima Japan look like after the bomb?
The city of Hiroshima is located on the broad, flat delta of the Ota River, which has 7 channel outlets dividing the city into six islands which project into Hiroshima Bay. The city is almost entirely flat and only slightly above sea level; to the northwest and northeast of the city some hills rise to 700 feet. A single hill in the eastern part of the city proper about 1/2 mile long and 221 feet in height interrupted to some extent the spreading of the blast damage; otherwise the city was fully exposed to the bomb. Of a city area of over 26 square miles, only 7 square miles were completely built-up. There was no marked separation of commercial, industrial, and residential zones. 75% of the population was concentrated in the densely built-up area in the center of the city.
Hiroshima was a city of considerable military importance. It contained the 2nd Army Headquarters, which commanded the defense of all of southern Japan. The city was a communications center, a storage point, and an assembly area for troops. To quote a Japanese report, "Probably more than a thousand times since the beginning of the war did the Hiroshima citizens see off with cries of 'Banzai' the troops leaving from the harbor."
- The Manhattan Engineer District, June 29, 1946-
Who first owned a nuclear bomb and an atomic bomb?
The United States:
Since 1942, more than 100,000 scientists of the Manhattan Project had been working on the bomb's development. At the time, it was the largest collective scientific effort ever undertaken. It involved 37 installations across the US, 13 university laboratories and a host of prestigious participants such as the Nobel prizewinning physicists Arthur Holly Compton and Harold Urey. Directed by the Army's chief engineer, Brigadier General Leslie R. Groves, the Manhattan Project was also the most secret wartime project in history. At first, scientists worked in isolation in different parts of the US, unaware of the magnitude of the project in which they were involved. Later, the project was centralized and moved to an isolated laboratory headed by physicist J. Robert Oppenheimer in Los Alamos, New Mexico. On 16 July 1945, scientists carried out the first trial of the bomb in the New Mexico desert. President Truman received news of the successful test whilst negotiating the post-war settlement in Europe at the Potsdam Conference.
=
Although voices within the US Military expressed caution regarding the use of the new weapon against Japan, Truman was convinced that the bomb was the correct and only option. Six months of intense strategic fire-bombing of 37 Japanese cities had done little to break the Hirohito regime's resolve, and Japan continued to resolutely ignore the demand for unconditional surrender made at Potsdam. In such circumstances, the use of the atom bomb was seen as the best means of forcing Japan to surrender, and ending the war. The alternative, of an Allied invasion of the Japanese home islands, was expected to cost hundreds of thousands of casualties.
=
The effects of the attack were devastating. The predicted Japanese surrender, which came on 15 August - just six days after the detonation over Nagasaki - ended World War II. Yet the shocking human effects soon led many to cast doubts upon the use of this weapon. The first western scientists, servicemen and journalists to arrive on the scene produced vivid and heartrending reports describing a charred landscape populated by hideously burnt people, coughing up and urinating blood and waiting to die.
Why did the us threw the atomic bomb?
Harry S. Truman defended his descision dropping the two atomic bombs on the cities on Nagasaki and Hiroshima. He defended his descision by saying it would shorten the war and lessen the casualties.
What kind of bomber dropped the first atomic bomb?
there was no bombs dropped in pearl harbor, the Japanese crashed planes known as "Kamikazes" into it
What are some implications that correspond to dropping the atomic bomb?
Atomic bombs implicate a heavy casualty rate and bast destruction to where it landed. That apart to the political implications.
How did dropping the atomic bombs on Japan affect the outcome of World War 2?
After the U S dropped atomic bombs on Hiroshima and Nagasaki the Japanese had no other choice but to surrender. The US totally destroyed all of their resources and killed thousands of innocent people in the process.
What was Albert Einstine's role in the creation of the first atomic bomb?
Nothing. His only connection to the atomic bomb was to sign a letter written by Leo Szilard (the inventor of the atomic bomb, though Einstein did not know this then) that warned FDRthat Nazi Germany might do it first.
How many people were on the plane that dropped the first atomic bomb?
12 people were on the B-29 Enola Gay when it dropped the atom bomb on Hiroshima.
What is a quote from the atomic bomb?
"The atom bomb was no "great decision." It was merely another powerful weapon in the arsenal of righteousness" that quote was said by Harry S. Truman, the president at the time the bomb was dropped
Why atomic bomb on japan not Germany?
It had not been fully developed or tested until after Germany had surrendered. 1st test was July 16, 1945. http://www.eyewitnesstohistory.com/atomictest.htm
How did Harry S. Truman justify his decision to drop the atomic bomb on japan?
He stated the bomb was needed to end the war.
Why did Truman decide to use the atomic bomb at the end of World War 2?
Trueman decided to drop the bomb on Japan because if they did an invasion, the United States would lose more men and Trueman did not want to take that chance.