insane_alien

john, i can only assume that the person you quoted was reffering to man made fusion reactors not the quadrillions of natural reactors up in the sky.

umm where did you read that? that doesn't happen. They used palladium because of its ability to adsorb hydrogen which bring the nuclei close together. They done this because they hoped it would work as a catalyst for a fusion reaction.

surface tension happens with ALL liquids EVERYWHERE. there are no exceptions, just variations on the strength of it.

Well, if you leave it long enough, your white blood cells will cure the cold you got. the problem with the cold is that it mutates too fast for medicines to keep up and with aids we don't know how to kill it faster than healthy tissue. it also destroys the immune system so it can't be fought off by your own defenses. The idea of creating a 'good' virus which is what your idea of a communicable immune system is has been though of before, we're just not sure how to go about it so that we can keep control of it so it doesn't mutate and become something really really bad. Its a good idea but the problems are a bit beyond us.

They have a few ideas about how to do it but they are FAR beyond the technological powers of even most Sci-Fi races. usually has something to do with 2 rings of neutron star matter that are 2AU in radius being spun near the speed of light. not the easiest of tasks. then theres the negative energy, we don't have a clue about that one.

and what are you going to compress the air with? also the fact that for practical pressures(70MPa), it is going to have a lower energy density than batteries. It's just not up to scratch yet.

show us a picture, it'll help us a lot more.

well, seeing as the most sophisticated fusion labs in the world can get nowhere near cold fusion, i seriously doubt there is an easy way to build a reactor just now. And of course, as YT said, it doesn't exist either. over coming the electrostatic repulsion of the nuclei is quite a challenge which is why it needs such high temperatures and pressures. If it could be acheived, then the energy released by the reaction would very quickly vapourise the equipment anyway unless you have some serious cooling available.

gravity can act on a photon even though they have no mass. and the escape velocity of a black hole is greater than c so the photon will not ba able to escape.

its far from practical, but we are definitely getting closer to feasible quantum computers. once we have quantum computers capable of performing meaningful functions i think that they will only be available to universities and large corporations/governments and act more like a mainframe/server farm rather than workstations. probably take several decades after that to get a quantum laptop or something

um, i'm from the UK. there is no middle school. anyway, i have actually researched a bit on evolution of humans as i like making creationists look a bit thick. i like to make sure i'm not talking total gibberish.

yeah, thanks for the citation. i'm 19 now, i really just can't be bothered with biology. there are a few small interesting bits i'll admit but most of of it is quite tedious to me.

look up RTG's. Yeah, they use a nuclear substance as a fuel but the way they convert the heat to electricity is what you want. just be sure to swap the heat source from radioactive stuff to a small fire or something, just to keep the feds off your back.

yeah, but according to the theory this 3*10^8 m/s is a barrier both ways. If you are all ready travelling faster (a whole lot of funky stuff would probably be happening but lets focus on velocity) then it would work the opposite way with energy increasing as you go towards c. this is because if you travelled faster than c, your energy would be complex(look up complex numbers if you don't understand). either way you can't accelerate too, or past, c in either direction. In effect, it is a barrier. There may be ways to side step this barrier however with sub-space, hyper-space or some similar concept if they exist outside science fiction and we can safely traverse them.

your right, nobody has travelled at the speed of light but we've fired particles at damn close to the speed of light and they don't increase in velocity much no matter how much energy we pump into them. einsteins equations hold true so we can infer that to reach light speed would require infinite energy for a massive particle. since theres is a good deal less energy than infinite in the universe we can conclude that it is impossible to reach it and therefore a very real barrier. no more ad hom attacks or somebody'll ban you.

well, you could go into te chemical properties but theres the same differences between 2 natural elements.

umm, there are none. an atom of any lement that was synthesised in a lab and an atom of the same type that was picked up off the ground would be indistinguishable.

close enough for government work, i haven't even done biology since i was 14.

there are a couple of flasks i've seen when searching around for this but they all have various other openings around the place and no calibrations.

Okay, so you have lots and lots of rocks being crunched, pulverised and ripped appart by thousands of millions of tonnes of ice that suddenly (geologically) melts and drys so you have a lot of rock dust hanging around and vegetation hasn't started to regrow yet. Think about it. lots of fine, dry dust particles with nothing holding them together. add a little wind and you got your answer.

rofl, that was pretty funny. don't see what the fuss is about, its not as if its going 'zomg, gays be evil' or anything.

i would guess at a wide necked measuring flask. but it does look kind of funny for one.

newtons laws are inaccurate. it's still taught because they are extremely simple and allow an easier transition to einsteinian mechanics later on. Thigs don't need an edge to be finite, like the surface of a sphere or taurus. reasoning in science is always a combination of thought experiments and mathematics. it must make sense(doesn't mean it has to be intuitive) in both methods for it to be correct.

thats why some smart people invented luminous paint. and remember kids, the more radium the better. also, if you're dumb enough to paint yourself with radium paints then you get what you deserve.

if the earth was a uniform density it would be a straight line, but thats not reality, you would get a curved line if you actually went and measured it. i think the curved line would be above the straight line since the earth is denser near the centre but i would get a second opinion on that.