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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 advice did Niels Bohr give to the Unite States government after the atomic bomb test in 1945?
Niels Bohr urged the U.S. government to promote international cooperation and open communication on nuclear technology to prevent the escalation of an arms race. He believed that sharing scientific knowledge was crucial for ensuring global security and finding peaceful solutions.
Reason for not using the atomic bomb?
- If the tested bomb had not worked it is likely they would have tried dropping the other bombs.
- If Japan had surrender prior to the dates the bombs were to be dropped then the bombs would not have been dropped on Japan.
How is nuclear powers and atomic bomb dangerous?
An atomic bomb works by forcing two pieces of radioactive material together, resulting in a chain fission reaction. This reaction releases an enormous amount of energy in a very short time creating a massive explosion. Hence, atomic bombs are primarily dangerous because of their powerful blast wave and the extreme heat of the explosion. Additionally, radioactive particles are released into the air by the blast. These particles continue to emit dangerous gamma rays causing radiation sickness and water and food contamination.
Nuclear power plants do not hold enough radioactive material to create an explosion so there is NO POSSIBILITY of the plant exploding. However, if the plant were to be poorly maintained, a "melt-down" could occur. In this case, the nuclear reactions would become too hot for the enclosing structure to contain and the facility would begin to melt, causing fires and allowing the release of radioactive particles. It is very difficult to stop a melt-down and containment is the best solution. This is what happened at the disaster of Chernobyl in the Soviet Union (http://en.wikipedia.org/wiki/Chernobyl_disaster). No other such case has ever occured although there was a scare at Three Mile Island (http://en.wikipedia.org/wiki/Three_Mile_Island_accident).
The atomic bomb was developed during World War II as a means to quickly end the war and reduce the need for a land invasion of Japan. It was believed that using the bomb would force Japan to surrender and save American lives.
Cesium is not a typical material used in the construction of atomic bombs. The primary materials used in atomic bombs are uranium or plutonium. Cesium may be a byproduct of nuclear reactions in atomic bombs, but it is not a key component.
What are facts about the Hiroshima atomic bomb?
On August 6, 1945, at 9:15 AM Tokyo time, a B-29 plane, the "Enola Gay" piloted by Paul W. Tibbets, dropped a uranium atomic bomb, code named "Little Boy" on Hiroshima, Japan's seventh largest city. In minutes, half of the city vanished. According to U.S. estimates, 60,000 to 70,000 people were killed or missing, 140,000 were injuried many more were made homeless as a result of the bomb. Deadly radiation reached over 100,000. In the blast, thousands died instantly.
The city was unbelievably devastated. Of its 90,000 buildings, over 60,000 were demolished.
Why are atomic bombs classified as nuclear?
Atomic bombs release energy in two ways. One is a fission bomb where the nucleus of a large atom is split into smaller parts. The amount of energy in the original atom is greater than the energy stored in the small pieces. This is the energy released. Atoms larger than iron can release energy when they are split up. The other is fusion or thermonuclear. It is called "thermo" because it needs to be very hot for it to happen. This is where the nucleus of two small atoms like hydrogen (deuterium H-2 or Tritium H-3) are joined together. The energy of the single hydrogen atoms is greater than the combined pieces. This is the type of nuclear reaction that occurs in the sun that provides us with sunlight and warmth. Atoms smaller than iron can release energy when they are joined together. The energy released in both types of bomb comes from the atom's nucleus, therefore the word nuclear.
Does the atomic bomb create energy?
In a classical context, yes - an atomic bomb releases more energy than could by liberated through exothermic chemical reactions, and therefore the energy could be said to be created, since the classical law of energy conservation is violated.
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In a quantum context, no - an atomic bomb converts potential energy, stored as mass in the nucleus of an atom, into kinetic thermal energy.
What can the atomic bomb do to a person?
That depends on how close you are to ground zero, the name given in the 1940s to the position of the bomb when it detonates. It can kill by instantly vaporizing a person. It can severely burn someone, causing him to either die instantly, die after a period of suffering, or survive the burns and start recovering from them, only to suffer and die anyway from radiation sickness. Someone who is not close enough to get burnt could be killed by the pressure wave, either directly or by causing something to fall on him, like a building. Someone who is miles away but looking in the direction of the bomb when it detonates could be permanently blinded by the intense flash of light that occurs at detonation. Even miles away from ground zero someone could be bombarded with gamma radiation and not know it right away, but then die a slow painful death from radiation sickness. The cloud of radioactive fallout could be carried far away by the winds, causing people to die of radiation sickness many, many miles from ground zero. If someone's exposure to gamma radiation is minimal, it is possible to receive a survivable dose, although many survivors can end up having children with severe birth defects years later.
The temperature of the atomic bomb hiroshima?
The temperature at the hypocenter of the atomic bomb in Hiroshima reached around 7,000 degrees Fahrenheit (3,870 degrees Celsius). This extreme heat generated a powerful fireball and caused widespread destruction in the city.
Did Albert Einstein know the atomic bomb would work?
Yes, Albert Einstein signed a letter to President Franklin D. Roosevelt in 1939 warning about the potential of atomic weapons. While he did not conduct the research himself, he was aware of the theoretical calculations and implications of nuclear fission that could lead to the development of an atomic bomb.
How did the atomic bomb start the cold war?
The dropping of the atomic bomb on Hiroshima and Nagasaki by the United States in 1945 heightened tensions between the United States and the Soviet Union, leading to the start of the Cold War. The Soviet Union saw the bomb as a threat to its own security and began its own nuclear weapon program, escalating the arms race and competition between the two superpowers.
Why does an atomic bomb explode?
It explodes because it contains a critical mass of unstable atoms of a heavy metal such as Uranium-235 or Plutonium-239. When the nucleus of one of these large atoms is hit by a neutron, the atom splits into two medium-size atoms such as Barium and Krypton or Strontium and Xenon, and also releases 2 or more free neutrons and a burst of energy. This process is called Nuclear Fission. The free neutrons from one nuclear fission can then create more fissions, and a Chain Reaction is begun. More fissions release more neutrons which create more fissions which release even more neutrons, etc. If conditions are right, this chain reaction proceeds explosively to form a Nuclear Fission Bomb or "Atomic Bomb". If this chain reaction is slowed and controlled, then the nuclear fission produces heat energy which can be used to boil water in a Nuclear Power Plant. Rapid fission, nuclear bomb. Slow controlled fission, nuclear power plant.
How long does it take an atomic bomb to explode?
The Hiroshima MK-I Littleboy bomb took a few 10s of milliseconds from igniting the cordite to completion of the fission explosion, most of this was the time for the bullet to travel to the target. Once the bullet and target were together the fission explosion itself completed in less than 20 microseconds. Expansion of the fireball to full size took roughly 1 second. The rise of the mushroom cloud might have taken a couple minutes, but the explosion itself was over long before that.
The Nagasaki MK-III Fatman bomb was much faster, total time from firing the 32 detonators on the 32 lenses to completion of the fission explosion was about 1 millisecond, most of this was the time for the explosive lenses to create an implosion and compress the plutonium core. Once the core was compressed the fission explosion itself completed in roughly 5 microseconds. Expansion of fireball and rise of mushroom cloud took about the same time as at Hiroshima, but again the explosion itself was long over.
Chemical explosions take on the order of milliseconds, nuclear explosions take on the order of microseconds. Explosions are FAST!
Nobody. If you are thinking of Einstein's work on relativity, all it said was that lots of energy was inside matter but no suggestion was made as to how to get it out or even if it was possible to get it out. Also Einstein did not work on the project as he was both a pacifist and would not work on any war related projects and was considered an enemy alien by the Army's people responsible for granting security clearances. The first appearance of atomic bombs in literature was in 1914 in H. G. Wells science fiction novel The World Set Free.
Leo Szilard invented the way to get it out (neutron chain reaction) in 1933 and was granted a patent for it in 1936, but no material was known then that would support this process. A team working in Germany and Sweden discovered in 1939 that the isotope uranium-235 fissioned when struck by neutrons and also released an excess of neutrons, making it suitable to support a neutron chain reaction.
The atomic bomb was not developed in 1939. The Manhattan Project operated from 1942 to 1947 and did not build any until the summer of 1945.
How much did the world war 2 atomic bombs weigh?
Little Boy, about 9000 pounds. Fat Man about 10000 pounds.
Why was the atomic bomb tested in Nevada?
The atomic bomb was tested in Nevada because of its remote location and sparse population, which minimized the risk of harm to civilians. Additionally, the flat terrain and clear weather conditions in Nevada were ideal for monitoring the effects of the bomb test accurately.
When was the first megaton atomic bomb built?
A pure fission atomic bomb with a yield of a megaton or more is theoretically impossible. The problem is that the chain reaction would happen spontaneously before the device could even be completely built and the bomb parts would melt, resulting in a fizzle and killing everyone building it.
The first fusion atomic bomb (commonly called a hydrogen bomb) was tested in 1952 as Ivy Mike and had a 10 megaton yield. The highest yield pure fission atomic bomb ever built was also tested in 1952 as Ivy King and had a 500 kilotons yield.
How big was the hole where the atomic bomb exploded?
The first two atomic bombs were set of in the atmosphere, they did not make a hole.
Later during the cold war, regulations prevented atmospheric/surface testing and the bombs were set off in deep holes that were pre-drilled in the ground. These holes were as deep as the engineers made them.
Was there a girl helping Albert Einstein with atomic Bomb?
Albert Einstein did not make the atomic bomb. Einstein himself did not even play a role in the development of the atomic bomb other than signing the letter to get Roosevelt to approve the making of it. He did help the United States Navy with some unrelated theoretical questions it was working on during the war. And girls wouldn't be smart enough. JK. But not really. Ok really.
Does an atomic bomb release radioactivity?
Yes, an atomic bomb releases a large amount of nuclear radiation in the form of gamma rays, neutrons, and radioactive fallout. This radiation can cause severe health effects in humans and the environment.
What was the outside of the atomic bomb made of?
The casing can be made of many things depending on its intended application, but in most cases its some kind of metal. Missile warheads though usually use a composite casing that ablates during reentry, preventing the warhead inside from burning up.
If you were asking about the bombs dropped in ww2 on japan, their casings were made of duralumin an aluminum alloy.
Why is the explosion from a atomic bomb so big?
The explosion from an atomic bomb is so big because it involves the rapid release of a huge amount of energy in a very short time. This energy is released through a process called nuclear fission, where the nucleus of an atom is split, releasing a tremendous amount of heat and light. This leads to a chain reaction that causes a massive explosion.
The primary elements used in the atomic bomb are uranium or plutonium. These elements undergo a process called nuclear fission, where their atoms split apart, releasing a large amount of energy in the form of heat, light, and radiation. This energy is harnessed to create the explosive power of an atomic bomb.
If a human scrotum were cut how far would it stretch?
The relaxation length of a human scrotum is approximately 6-10 cm. However, this can vary depending on factors such as temperature, arousal level, and individual variability. Cutting the scrotum would cause pain, bleeding, and potential long-term consequences, so it is not recommended to test its stretching capacity in this manner.
