Incidentally, it can be shown that the natural radioactivity deep underground is doing virtually no damage,WHY
465076
Convert the waste into forms that can be used for thermal reactors.
1014651
It is real.  We can measure the life of a muon here on the surface of the earth, but according to calcuations, this lifetime is much shorter than what we measure.  However, these muons are created in the upper atmosphere and move at relavatistic speeds.  Time dialation explains the increase in time.  Since they are traveling very fast, then time slows down and they appear to live longer!
526456
No, it's evidence of combustion.  Radioactive decay is usually invisible unless you have film there to see the particles given off.
1141434
Probably because it's natural, there's no added preservatives or sugar.
917546
There is no danger at all.
559938
If u are a student , then u should not be lazy in doing your homework etc.  \n\n\nCriticality accidents:\n\nCriticality accidents and power excursions in nuclear reactors, for example the Chernobyl accident. In a smaller scale accident at Sarov a technician working with highly enriched uranium was irradiated while preparing an experiment involving a sphere of fissile material. The Sarov accident is interesting because the system remained critical for many days before it could be stopped, though it was safely located in a shielded experimental hall. This is an example of a limited scope accident where only a few people can be harmed, while no release of radioactivity into the environment occurred. A criticality accident with limited off site release of both radiation (gamma and neutron) and a very small release of radioactivity occurred at Tokaimura in 1999 during the production of enriched uranium fuel .\n\n\nDecay heat:\n\nDecay heat accidents where the heat generated by the radioactive decay causes harm. In a nuclear reactor that has been shut down, a loss of coolant accident can damage the core, for instance at Three Mile Island a recently shutdown PWR reactor was left for a length of time without cooling water. As a result the nuclear fuel was damaged, and the core was partly melted.\n\nTransport:\n\nTransport accidents can cause a release of radioactivity resulting in contamination or shielding to be damaged resulting in direct irradiation. In Cochabamba a defective gamma radiography set was transported in a passenger bus as cargo. The gamma source was outside the shielding, and it irradiated some bus passengers.\n\nIn the United Kingdom, it was revealed in a recent court case that a radiotherapy source was transported from Leeds to Sellafield with defective shielding. The shielding had a gap on the underside. It is thought that no human has been seriously harmed by the escaping radiation.\n\n\nEquipment failure:\n\nEquipment failure is one possible type of accident, recently at Białystok in Poland the electronics associated with a particle accelerator used for the treatment of cancer suffered a malfunction . This then lead to the overexposure of at least one patient. While the initial failure was the simple failure of a semiconductor diode, it set in motion a series of events which led to a radiation injury.\n\n\nHuman error:\n\nHuman error has been responsible for some accidents, for instance a person miscalculated the activity of a teletherapy source. This then lead to patients being given the wrong dose of gamma rays. In the case of radiotherapy accidents, an underexposure is as much an accident as an overexposure as the patients may not get the full benefit of the proscribed treatment. Also, humans have made errors while attempting to service plant and equipment which has resulting in overdoses of radiation, such as the Nevvizh and Soreq irradiator accidents.\n\n\nLost source:\n\nLost source accidents are ones in which a radioactive source is lost, stolen or abandoned. The source then might cause harm to humans or the environment. For example, see the event in Lilo where sources were left behind by the Soviet army. Another case occurred at Yanango where a radiography source was lost, also at Samut Prakarn a cobalt-60 teletherapy source was lost  and at Gilan in Iran a radiography source harmed a welder. The best known example of this type of event is the Goiânia accident which occurred in Brazil.\n\nThe IAEA have provided guides for scrap metal collectors on what a sealed source might look like. The scrap metal industry is the one where lost sources are most likely to be found.\n\n\nOthers:\n\nSome accidents defy classification. These accidents happen when the unexpected occurs with a radioactive source. For instance if a bird grabs a radioactive source containing radium from a windowsill and then was to fly away with it, returning to its nest and then the bird dies shortly afterwards from direct irradiation then i
858444
It means an element in which its atoms emit electromagnetig waves and particles Without the use of any medium. normaly radoiactive is liked to harm but since all radioactive material has harmfull efects to living organisims then it is true to link radioactivity with harm.
670330
These are sensors that can detect radioactivity and have uses in security devices and other security devices.\nAll elements are stable under normal conditions , but some elements like uranium and plutonium are less stable than the others . When the atoms of these substances are disturbed (its called excited state) they emit energy in the form of radioactivity . This radio activuty can be detected by these sensors .
223643
because not all of it has turned into lead yet. a half life extends forever. the part that has not decayed is still uranium.
918837
In theory there is no upper bound except those imposed by real-world engineering constraints.\n\nThe Russians popped an underground event in Siberia that was a bit over 50 megatons.  It *moved* the entire  Siberian techtonic plate something like a centimeter and they decided that was probably as big as they needed to test ☺\n\nSay you detonated something in the 10 megaton range at an altitude of about 5 miles.  Pretty much everything within about a 3 mile radius of 'ground zero' is going to be, literally, vaporized.  In fact, the top 30 or 40 feet of ground zero is going to be vaporized, leaving a sort of round 'dish' shaped depression a mile or so across in the ground.  Inside this radius, the 'dish' will be coated with a 'slag' formed as melted soil and rock cools.  Depending on the minerals in the area, some of these slags are quite colerful and would make excellent souvenirs.  (Just avoid the ones that glow in the dark ☺)  Everything out to about 10 miles or so will be knocked flat and/or incinerated (total destruction on the surface) by the heat and shock wave.  The structural damage begins to fall off after that, but significant damage to structures would still occur at ranges of 20 or more miles.  People directly exposed to the event would be killed (instantly) by the radiation at distances of up to about 10 miles.  After that, survival probabilities would increase logarithmically out to about 30 to 35 miles.  Life expectency (which would be zero out to ranges up to about 10 miles)  would go up along a logarithmic curve out to a range of about 100 miles or so, at which point the mean expected lifetime (post event) would be about the same as it was before the event.  One exception would be optical effects.  Anyone looking in the general direction of the event would probably be blinded out to a range of 30 to 40 miles.\n\n\nDoug
300559
One does not mine for depleted uranium. That is man made and is disposed of in guarded facilities. However, if you insist, you had best know it's qualities and make sure you are well protected with radiation gear.\n\n"Depleted uranium results from the enriching of natural uranium for use in nuclear reactors. Natural uranium is a slightly radioactive metal that is present in most rocks and soils as well as in many rivers and sea water. Natural uranium consists primarily of a mixture of two isotopes (forms) of uranium, Uranium-235 (U235) and Uranium-238 (U238), in the proportion of about 0.7 and 99.3 percent, respectively. Nuclear reactors require U235 to produce energy, therefore, the natural uranium has to be enriched to obtain the isotope U235 by removing a large part of the U238. Uranium-238 becomes DU, which is 0.7 times as radioactive as natural uranium. Since DU has a half-life of 4.5 billion years, there is very little decay of those DU materials."
128043
Nuclear energy is not "cold", I am not sure what you meant by that.  The whole principle of how muclear energy is used to generate electrcity relies on the fact that it gives off a lot of heat.\n\nIt is also not too clean either.  The depleted nuclear waste posses a problem of where to dispose of it.  It will stay radio active for hundreds of thousands of years, so whereever you put it it needs to be out of the way and secure.  Right now, the government is planning to store the stock piles of nuclear waste deep underground under Yucca Mountain (in Nevada I think), but there is a lot of debate over this.\n\nAs for sustainable, perhaps not in the long run.  There is only so much fissionable material on Earth, it will run out eventually just like fossil fuels.  A more long term nuclear energy sourse would rely on fusion, not fission, but this has yet to be practical.
954025
why irradiated? An impact of an asteroid or a comet does not produce readioactivity.
526111
Yes, one it is enriched and now radioactive because an atom has been split. I don't know the science. Two people still need to go in and get more uranium. There is a plan to bury it all in an abandoned mine, of limestone I believe to limit the leakage. The problem with burying it all in one place and setting up a perimmiter in this dead zone is that a) it will still spread/ leak. b) shipping stuff from all over the US to one place in the southwest is very risky. Now it is all required to stay on site at each nuclear plant in the special barrels. The plan for transport is very thourough but still not a pleasing idea. If a truck crashes/ terrorist/ whatever goes wrong you will severly contaminate a large area, 50 mile radius or more. \n\nWould you like to know the plan for shipment? Well here it is. First we've got super buckets to carry it in. Big red plastic looking capsules. We ran them over with a train. Didn't break. Was funny to see a huge red thing fly through the air though. Geographers used computer mapping to find routes that were the quickest but also went through the least populated areas. The final decision was based mainly on the least population and it doesn't travel through major cities. Many objected about going through suburban areas but in some cases there just wasn't enough farm land to pass through without having to make such a detour that it would take a long time and effect more population. The highways and streets it must pass through will be closed to traffic and the trucks will be escorted by military. If your local highway is closed for somereason chances are it's passing through your neighborhood.
55336
An active volcano is an upward current of molten rock. If you dumped radioactive waste into it, the parts that wouldn't be vaporized (and thereby spread through the atmosphere) would be thinned and distributed in the lava, spreading the problem rather than getting rid of it.\n\nWhat you might be thinking of is called a subduction zone, where two tectonic plates meet and one is pulled below the other. In that case, nuclear waste with a decay sufficiently low so that its earliest expected reappearance would lead to radiation levels below the average environmental level could be feasible. Getting the stuff into a deep cavern in a tectonically stable plate and leaving it there for about the same time would work at least as well, so I'd leave out tectonic activities when looking for an end storage for nuclear waste.
954830
We haven't been attacked on our soil since it's existence, so yes.
404589
Neutrinos can pass through many light-years of lead without collision; therefore they would have little or no effect on organic matter. Also, since they have no charge, they would not create a field.