insane_alien

its all to do with the initial freezing. freeze it fast and all is well, you can then let it sit in a normal home freezer and it will keep the texture. you can do an experiment to prove this by taking a tub of ice cream from the store, leaving it to completely melt then bung it in the freezer till solid again. it will not have the same texture.

nuclear waste can be buried. we know that it is possible to use geological featuresto seal up nuclear waste effectively as there are(or rather were) massive natural nuclear reactors. which have left nuclear waste rich rock behind. it has not had adverse effects on the surface. a man made cavern would be even more effective as it would have maintenance and checks periodically performed on it. also, it would probably be possible to use the heat generated by the decay for extra power.

chances of proliferation will not be increased because technical know how is not the limiting factor. the knowledge for how to build a nuclear bomb/reactor is public. anybody could go look it up. the limiting factor for proliferation is that governments monitor anyone buying materials and machinery required to support the building of a reactor/bomb. for the chances of proliferation to be increased you would have to decrease the monitoring powers which i don't think anyone is likely to do.

its not that dangerous, there are independant redunant safety mechanisms on all modern plants. heck, in a modern plant you can have the reactor undergo a complete meltdown and it will not be a big environmental issue. yes, it is theoretically possible, but we need an intermediate to transition to them while they mature. reactor design and bomb design are two very very different things. besides which, even a high school student will know the basic principles behind both, assuming sufficient resources, it would not be hard for any nation to develop its own nuclear technology. but there won't be an increased chance. as it will be on the same order of magnitude as it is today.

in particle accelerators and in space. lots of times, you just need to point a telescope in the right direction.

grandzilla, there is a slight difference in scale. on a small lab scale like the high school student, it is relatively easy to make heavy water. however making several thousand tonnes at a time has some very big issues, mostly in the cost and time department.

yes, but before i brought up excitation you said they would move further from the nucleus on there own without energy input.

yes, but you haven't explained why they should spontaneously move away like you said.

yes, the sun is losing mass, the disturbance caused by this overwhelms the disturbance caused by gravitational waves

no, it is not all the same. go get a basic physics book and read it.

only because mass is being lost from the sun. that was the reason. if the sun was not losing mass then the earth would be getting closer due to energy loss from gravitational radiation.

ahahaha, i think you just proved you don't know what your talking about there, gravity is pretty damn inconsequential on the molecular level. electromagnetics rules chemistry with some strong nuclear force and weak nuclear force included in nuclear chemistry. seriously, have you ever studied ANY SCIENCE AT ALL?

you wouldn't believe how good a therapy it is to argue with a troll, these threads have been keeping me from going completely nuts the last few days. shrinks can sod off, this is free.

so where is the energy coming from to move them away? and why do they always fall back down to the origional level after they have been excited by a photon such as in a laser?

in what situation? its not a fixed value you know. and the force is distance dependant and it depends what the force is acting on.

seriously, give me something to work with here, force and distance OF WHAT?

context?

so you mean friction? you do know that can cause stuff to accelerate as well? not only that, but that it doesn't exist in certain scenarios. and also that it is caused by the geometry of the objects rubbing together and interacting via electromagnetic repulsion?

specifically, air friction. traveller uses some unspecified resistance that is somehow required for all forces to manifest itself. not exactly the same as air resistance as discussed in rocket science.

a tidal effect is an object being acted upon by gravity. now, are you going to keep spouting your overly simplistic and wrong veiw of physics or are you going to take the time to learn something real? because really, your not being helpful here at all.

i said perpetual IF nothing else ever interacted with it. mooeypoo is correct as well

ah so you ignored the tidal effects on the ground then? the ground moves a good few meters every day.

you are the one assuming you can do no work, just like you assumed people can fall through the ground in the other thread. when you only consider part of a scenario it always fails to make sense.

if only it was just lack of knowledge of the definition of a few words. traveller has shown himself time and time again incapable of listening to what other people are saying or even accepting the slightest possiblity that he may have got something wrong. he'll hijack the thread and turn it into some horrible monstrosity not even remotely connected with the origonal topic.

oh for **** sake traveller. resistance is not force, relativity is to do with velocities and very basic mechanical equations DO NOT ALWAYS APPLY. stop yapping on about crap you think is right but has absolutely no basis in reality. from what i have seen you have only the most tenuous of grasps on newtonian mechanics and absolutely no grasp of even the more basic parts of relativity, quantum mechanics or pretty much anything else. time to shut the hell up and learn something.