Atomic Bombs

The reflector in a nuclear weapon core is made of a material which can reflect neutrons from fission in the core back into the core, instead of wasting them. A tamper can permit a smaller mass of nuclear fuel (an unreflected subcritical mass of nuclear material can quickly become critical if a reflector is used). Depending on the material, they can also have a neutron-moderation effect. The tamper in many nuclear weapons is also the reflector.

Both the atomic bomb and nuclear power plant rely on nuclear fission to produce energy. The atomic bomb is designed to release a massive amount of energy in a short time, causing destruction, while a nuclear power plant harnesses controlled nuclear reactions to generate electricity for communities.

The question you are asking is equivalent in many ways to asking "Which number is bigger 27 or 27?" as an atomic explosive and a nuclear explosive are generally considered the same. The only difference is a bomb is typically an explosive delivered by a manned airplane whereas the explosive warhead on a missile is delivered by either a rocket or an unmanned airplane called a cruise missile.

Either one could be a higher yield explosive, or as I stated in the example at the beginning of this answer both could be identical.

Trinity site, NM in the north east corner of what is now White Sands Missile Range, July 16, 1945

Alfred Nobel did not invent the atomic bomb. He is best known for creating dynamite and establishing the Nobel prizes. The atomic bomb was created by a team of scientists during the Manhattan Project in the United States during World War II.

Yes, atomic watches can work anywhere in the world as they receive radio signals from atomic clocks to automatically adjust the time. This ensures precise timekeeping regardless of the location.

Einstein had no direct involvement in the building of the first atomic bombs. Although Einstein's theories formed the basis of the physics involved in creating them, it was primarily Oppenheimer and Fermi that lead the team that actually designed and built the weapons.

The first atomic bomb, "Little Boy," weighed about 9,700 pounds (4,400 kg).

An atomic bomb consists of highly enriched uranium or plutonium arranged in a critical mass to trigger a chain reaction. This reaction releases a tremendous amount of energy in the form of heat, light, and radiation, causing a powerful explosion. The construction of an atomic bomb involves precise design and engineering to ensure a successful detonation.

The references I have state Oralloy is 93.5% U235. Oralloy (Oak Ridge Alloy) was used in US Uranium atomic bombs as the fissile material. However they also say that any enrichment 20% U235 or higher is fissile and could be used to make a bomb, it would require a higher critical mass to work though. One source I have states that early Soviet Uranium atomic bombs used ~97% U235, but the US felt this level of enrichment to be unnecessary and excessively expensive.

J. Robert Oppenheimer was the scientific director of the Manhattan Project, the U.S. government research project that developed the atomic bomb during World War II. Oppenheimer played a crucial role in overseeing the development and testing of the bomb, leading to its successful deployment in the bombings of Hiroshima and Nagasaki in 1945.

Yes. In fact, any large explosion(atomic or otherwise)which occurs on or near the ground will cause a mushroom cloud. This is because the explosion creates a mass of superheated air and debris, which will expand and rise upwards because its density is less, and its temperature higher, than the surrounding air; basically the same principle that causes hot-air balloons to rise. This is what gives you the iconic "mushroom" cloud. About the only time you wouldn't expect to see such a cloud is if the detonation occurs deep under ground or water, or at extremely high altitudes.

That varies from design to design. The physics package is typically quite small, the chemical explosives can be much bigger depending on the types used.

Albert Einstein did not make an atomic bomb. He was a theoretical physicist who wrote a letter to President Franklin D. Roosevelt warning about the potential of nuclear weapons and the need to develop them, which ultimately led to the Manhattan Project and the creation of the atomic bomb.

An atomic bomb is a type of nuclear weapon that uses nuclear reactions to create an explosive force. It relies on the process of nuclear fission to release a large amount of energy in a very short time, resulting in a powerful explosion. Both atomic bombs and nuclear weapons involve harnessing the energy released from splitting or combining atomic nuclei.

To listen into someone else's conversion. A nicer way of saying you were being snoopy or spying on people while they talk.

The temperature at the center of an atomic bomb during detonation can reach tens of millions of degrees Celsius. This extreme heat is generated by the nuclear fission or fusion reactions taking place, releasing massive amounts of energy in a fraction of a second.

I'm not quite sure what you mean as "progress". It appears to be a technology that somebody would have developed sometime in the timeframe of the 1940s, 1950s, or 1960s, even if WW2 had not accelerated the "need" for it. The idea of the neutron chain reaction required for it had already been patented in 1934 by Leo Szilard and the Uranium fission reaction needed to make it work had already been discovered in 1939 by Otto Hahn. The main thing that limits it is the specialized industrial infrastructure that needs to be developed to prepare the components. However it has more or less been shown that for a country sized entity, this takes roughly 4 years from decision to proceed to ability to make bombs.

You mean what triggers the fission chain reaction?

The atomic bomb that was dropped on hiroshima was a gun style fission bomb that used a uranium-235 core. The core consisted of two hemispheres of U-235 on each side of a tube, with an explosive that would push them together. When they collide, they reach the critical mass for an uncontrolled chain reaction and nuclei start to split and release neutrons which will collide with other nuclei and split them as well. The explosive used to trigger the reaction is triggered by a detonator.

The race to build more atomic bombs between the US and the USSR during the Cold War was called the Arms Race. It was a period of intense competition and escalation of nuclear weapons development between the two superpowers.

Albert Einstein did not personally work on the atomic bomb project. However, his theories on relativity and mass-energy equivalence, particularly the equation E=mc^2, laid the foundation for understanding the energy released in nuclear reactions, which was crucial for the development of the atomic bomb by other scientists and engineers during the Manhattan Project.

The main difference between atomic bombs and hydrogen bombs is the source of their energy. Atomic bombs rely on nuclear fission (splitting atoms), while hydrogen bombs use a two-stage process involving both fission and fusion (combining atoms). Hydrogen bombs are more powerful and destructive than atomic bombs.