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I cannot understand the obsession with the waste from fission reactors, coal fired power stations dump far more radioactivity into the environment and the deaths caused by coal mining are at least a thousand times as many as those caused by nuclear power station mishaps.The present arrangements for storing nuclear waste are adequate and the only barriers for long term underground storage are only political.
Here's a thought: What would be the longterm effect of dropping it (lightly encased) into the deepest parts of the worlds oceans?
Geezer, I am pretty sure there is much more energy made by power plants than would be expended by any number of waste disposal schemes, including launching into the sun, but the energy balance is not important. What is important is the cost. The real cost of current nuclear reactors is already so high that increasing this is unacceptable (and they told us it would be too cheap to meter).
Quote from: peppercorn on 20/12/2010 09:54:09Here's a thought: What would be the longterm effect of dropping it (lightly encased) into the deepest parts of the worlds oceans?Oi! Start your own thread, matey! 
Peppercorn, there was a plan to explore putting the waste in the bottom of subduction zones so they would be carried down into the mantle. I don't know what happened with this idea, but I suspect that concern for the already highly stressed ocean ecology might have had something to do with it.
The Shrinkomatic is nigh!
The Nuke Plants use about 10% of the power in the Fuel Rods.It is like filling your tank with gas.Using 1 gallon.Dumping the restAnd filling up again.WE NEED TO START RECYCLING THE FUEL RODSAnd, no, making them into toxic bullets doesn't count as recycling.Once that is started, that should cut the waste stream by 10 fold, and hopefully get rid of some of the most long-lived isotopes.Burying in the ocean sounds like a very bad idea. Do we have anything that would hold up to the elements for 100,000 years? Vitrify it first?Rather than being dependent on the sedimentary rate, one should just decide how deep of a hole is desired, and bury it.
Yes let's get back to the original idea...It's a terrible one!Right. New topic!I think the main problem is it's bloody heavy stuff and there's more than a fading chance of a problem a launch.
Bodies don't start to fall towards the Sun they retain the orbital energy associated with their orbit around the Sun that has to be removed in some way.There is no friction in their environment they have to be imparted with an acceleration of 30M/s from some source.
from escape velocity 11 km/s, might be 10% off