What kilatonage of a nuclear bomb is needed to produce and electromagnetic pulse?
546511
Any nuclear bomb will create an electromagnetic pulse.  The size of the pulse radius will be approximately related to the blast radius.
54140
Gamma rays (often denoted by the Greek letter gamma, γ) are an energetic form of electromagnetic radiation produced by radioactivity or other nuclear or subatomic processes such as electron-positron annihilation.\n\nGamma rays form the highest-energy end of the electromagnetic spectrum. They are often defined to begin at an energy of 10 keV, a frequency of/ 2.42 EHz, or a wavelength of/ 124 pm, although electromagnetic radiation from around 10 keV to several hundred keV is also referred to as hard X rays. It is important to note that there is no physical difference between gamma rays and X rays of the same energy — they are two names for the same electromagnetic radiation, just as sunlight and moonlight are two names for visible light. Rather, gamma rays are distinguished from X rays by their origin. Gamma ray is a term for high-energy electromagnetic radiation produced by nuclear transitions, while X ray is a term for high-energy electromagnetic radiation produced by energy transitions due to accelerating electrons. Because it is possible for some electron transitions to be of higher energy than some nuclear transitions, there is an overlap between what we call low energy gamma rays and high energy X-rays.\n\nGamma rays are a form of ionizing radiation; they are more penetrating than either alpha or beta radiation (neither of which is electromagnetic radiation), but less ionizing. They produce damage similar to that caused by X-rays, such as burns, cancer, and genetic mutations. Gamma rays from nuclear fallout would probably cause the largest number of casualties in the event of the use of nuclear weapons in a nuclear war. An effective fallout shelter reduces human exposure at least 1000 times.
639127
Its main use is as an alloy in other metals, namely alloyed in steel. \n\nAt one time there was talk of producing a cobalt bomb. I suppose they would use cobalt 60. It has been nick named the doomsday bomb as it would wipe out all life on Earth. \nGWB is probably constructing one right now.
1022849
Fusion mixed with a dirty bomb. So, a hydrogen bomb that liberates lots and lots of radiation. Anything small would be bad also, only because it would be harder to detect, and counter.
218083
I assume you mean nuclear "bomb"...\n\nIn simplistic terms, and nothing you can't easily find elsewhere, a nuclear bomb is made up of material that fissions (meaning that its atoms can be split to release energy) - this is either Uranium-325 or Plutonium.  Uranium is found in nature but the vast majority is U-238 which doesn't fission - natural uranium must be enriched to create a fissionable amount of uranium - this is true for commercial power reactor fuel too.   Plutonium is made in nuclear reactors from bombarding other materials with neutrons.\n\nTo have a "nuclear yield" the fissionable material in a bomb must be forced into a 'critical mass' configuration which means that it is so dense (atoms close together) that once the material starts to fission and release energy and neutrons, other atoms will capture the released neutons and then they will fission releasing more energy and neutrons and so on and so on with the chain reaction making the boom.\n\nWith the early plutonium bombs (Fat Man), the material was in a sphere and was forced together with high explosives uniformly to create a ball (critical mass). In the first uranium bomb (Little Boy, which they didn't even test until it was dropped on Japan since they were confident it would work) 2 uranium blobs were forced together by essentially thrusting/throwing/shooting one to the other to create the critical mass.  The math behind all this physics is incredibly complex.\n\nTo add bang for the buck they started adding the gas Tritium, an isotope of hydrogen, hence the name Hydrogen bomb versus just the Atomic Bomb...  Tritium makes the yield much bigger.
1105990
a neutron bomb,\n\nit explodes about 10,000 feet in the air is will kill all living flesh with in a hundredf miles of ground zero there is no escape. It takes like 20 of solid concrete wall or 6-10 feet of solid lead on all side to stop the rays.  The rays cook flesh as if it was put in a microwave oven.  It is not radioactive like the atomic bomb within hours after the blast the area is inhabitable again.  Just clean up the cooked bodies.  Its very wicked weapon and yes we have it.
636689
The larger of the two dropped on Japan, on Nagasaki, had a 20-22 kiloton yield. Meaning, it would take 20,000 tons of TNT to release the same energy. The B83, the most powerful weapon in the active US arsenal can be up to 1.2 megatons, 1,200,000 tons of TNT, 60 of the Nagasaki bombs. The largest explosion ever was a Russian bomb at 50 megatons, 2,500 times as powerful as the explosion at Nagasaki.
684493
Atomic bombs use fission reaction (splitting atoms) from the nuclear material.  Hydrogen bombs are Fusion bombs where the hydrogen atoms are Fused together generating much more energy than fission.  Hydrogen bombs have to use an atomic bomb to generate the Fusion reaction in the Hydrogen.\n\nYour not Osama are you??
390263
Nuclear fusion power. Look up the Tokamak Reactor.
271223
Nuclear weapons have been made anywhere from a few kilotons in yield to 20 Megatons and up.\n\nIt's damage will depend upon where it is detonated or how high it is detonated above the ground.  If one is detonated at ground level the damage will not spread as far as one that was detonated above ground level.\n\nCheck out the Federation of American Scientests Website.
446553
Lots of fallout.  LOTS.\n\nHere's a fun fact; the accident at Chernobyl plant released 200 times the radiation of both atomic bombs dropped on Japan.  The radiation reached every corner of Europe.  And that was just one reactor out of four.\nSo a bomb dropped on a nuclear plant would probably be the end of everything within 500 miles.
1066558
Anit-matter is related to the atomic bomb? How?  The "atomic" bomb was a device that created a nuclear fission chain reaction.  No anti-matter was used.  The modern "nuclear" or "hydrogen" bombs are fusion devices (which create the energy needed for the fusion reaction by first detonating an atomic fission device), but still, no anti-matter involved.  \nNow, a positron (or the anti-electron) can come about under certain circumstances of a photon interacting with things such as carbon or fluorine and a couple others causing beta particle decay, but none of the right elements was used in any bomb.
694161
Whoa, let's sort out this question, you're actually talking about several different things.  First of all, yes, the entire electromagnetic spectrum involves the electromotive force.  But electrons themselves are not examples of the electromagnetic spectrum, even though in quantum theory they are represented by waves.  Certain particles, such as neutrinos, which are now suspected to have mass, do in fact pass through our bodies "harmlessly", because 1) they are uncharged, and 2) their mode of interaction with matter through the electroweak force makes it extremely rare that they would actually "collide" with anything.  Now, exploding bombs that produce shock waves that damages our bodies, again, are not examples of the electromotive force in action, but ordinary air being compressed and moving along like sound waves.  The speed, in fact, is the speed of sound.  What makes an explosion destructive is the degree of overpressure, or pressure differential, across the shock wave.  And destruction to bodies by this overpressure occurs so rapidly, it's not really a matter of friction, but more by net mechanical force.  Now, it's possible to damage or kill people using electromagnetic waves, which is the theory behind high energy focused microwaves, or even lasers, but this time it's a matter of absorption of energy, rather than a mechanical interaction as with shock waves from ordinary explosions.
576718
explosion, yes...nuclear, no
280483
What, knife, gun, atomic bomb? Please be more specific.
426649
To get a nuclear explosion, you need to have an uncontrolled  chain reaction: whenever an atom fissions (and emits neutrons), other fissionable atoms have to be available to capture the neutrons and also fission themselves. The chain reaction occur because one atom fissions, emitting two neutrons; these two cause two more atoms to fission, emitting four, then eight, sixteen, thiry-two ...\n\nCritical mass is also necessary to have enough fissionable material around that enough of the neutrons are absorbed to continue the chain reaction. \n\nBarium-133 decays by electron capture (one of the protons in the nucleus actually combines with  an inner-shell electron to form a neutron. This emits a X-ray instead of a neutron, so it's not suitable for building a bomb. Gotta have those neutrons, and more than one of them.
958392
Hydrogen bombs ARE nuclear bombs; they are a particular type of nuclear bomb and are powered by a fusion reaction.  By "nuclear bombs", I assume you meant fission (usually uranium-based) bombs, which are another type of nuclear bomb.\n\nBasically, fission bombs consist of unstable elements which constantly break down into lighter elements.  This breakdown releases heat and subatomic particles [radiation].  Being subjected to radiation also causes the breakdown rate to increase, so in large enough quantities, a chain reaction occurrs where millions of atoms split nearly instantaneously due to the high radiation from the neighbouring atoms disintegrating.  Large quantities of heat and radiation are released, causing a massive explosion and residual radiation which lasts for years.\n\nIf you meant to ask whether or not fusion bombs have replaced the less-powerful fission bombs, then the answer is a more complicated "yes-and-no"... yes, the fusion reaction is much more intense and releases much more energy than the fission reaction does.  Fusion describes the process whereby two atoms of a light element (hydrogen atoms, in this case) are bonded together to create a heavier element (helium, in the case of the hydrogen bomb).  However, these atoms do not spontaneously fuse - catalyzing the reaction requires an immense amount of energy.  Obviously the energy subsequently released is enormous - more than enough to fuel the fusion of more atoms - but to initially get the reaction started, a huge amount of energy is required.  The best way to do this, in the case of a hydrogen bomb, is a small fission bomb which generates the required energy for the fusion to begin.  Since a fission bomb is used to trigger the fusion bomb, it is still necessary to have engineers and scientists who study and build fission bombs, so it would be inaccurate to say that the fusion bomb has "replaced" the fission bomb.