insane_alien

the solar wind is ions and other particles blown away by the sun. it does not usually refer to the light emitted by the sun.

reverse osmosis get rid of most things including minerals. UV light will destroy bacteria but can leave behind poisons and toxins. i have never heard of using candles for filtering. boiling will again destroy bacteria but can leave behind some nastiness. i'd go for reverse osmosis given a choice.

but we know what a Z particle is and what it would look like on the data. i'm going to go ahead and reach out on a limb to say that the particle physicists know a Z particle from something new.

never said it wasn't. and i wasn't suggesting we use these everywhere. you just said: and i provided counter examples.

they only appear to be non parallel.its to do with the way humans percieve the world. this peculiar phenomenon caused intelligent people to believe that the sun was much closer than it actually is a long long time ago. the are called crepuscular rays. http://en.wikipedia.org/wiki/Crepuscular_rays this explains it better than me.

yeah same thing. we only call the adjustable ones wrenches though. and it was a bang that propelled the spanner at my head. i was looking through some stuff in my garage and i dropped a metal box which made some sparks and ignited a build up of propane from an old leaky(and i thought empty) gas canister and flung a spanner sitting on top a bit of plywood at my head.

but we do use that kind of power source on earth. plutonium batteries for pacemakers. automated light houses, the navy uses a bunch. etc. etc.

i'm not a stimulant junkie. though i should probably have mentioned adrenaline. speaking of which, car surfing season is open.

you could always give DSL or Puppy. they're tiny distros. 64MB of ram and your sorted.

the laws of physics don't care if you have a million plans. it still won't work

fluxbuntu would be even better

there are a number of ways to test for THC. but they all look for the compound and its daughter products. THC will remain in your system for a couple of weeks depending on how heavy the usage is. this will come out in your urine for a while after the person took the drug. IIRC the most common method used for urinalysis is high performance liquid chromatography. i assume that they'll have some sortof indicator for the presence of THC as well. basically, if the test develops a certain coloured strip at a certain position it has detected THC

umm no. if you use 3000 Joules then you will be able to extract 3000 J of energy before it has zero field again. normally this will take years and years as the magnet is not actually expending any energy and just providing a static force. if you extract energy from the field then it will deteriorate a whole lot faster. magnets are made of metal. and i don't even want to know what magnets excrete.

yes but nerve endings are a tad gentler than the several million volts of a lightning strike. that doesn't change the laws of physics. the delay in nerves is because the signal spends most of its time in chemical form. this introduces a bit of lag into the system and slows its propagation.

you could use putty to SSH out from uni and tunnel a USB version of VNC through it. i use tightVNC. http://www.tightvnc.com/ all you have to do is set up an SSH server and the VNC server on your home/dorm machine. this means its encrypted as well. adds some security. i recommend a public/private key encryption method.

the command line is simple once you've used it a bit. i tried on windows but its not the same. its like dropping from a bugatti veyron to a reliant robin with a puncture in the front wheel and only firing on one cylinder. its a damn shame what MS have done to it.

i think you will find that it does. have you tried building a prototype? also, if you had it spinning and assuming there was no friction, in other words an ideal situation, then the moment you tried to extract work from it through a generator then it would slow down and stop.

you will not get any more energy out than you put in at the start. it just will not happen. it cannot happen. and can you please take the time to write in proper english, it makes your posts hard to read with all the glaring errors.

if only you knew how to put http:// infront of links so they'd work. your idea is tosh anyway. the best it can possibly do is break even. that means it does no useful work. oh, and just because it keeps spinning in the most basic physics simulation where friction isn't accounted for doesn't mean it will in real life. try it. go to a workshop and build it. and nobody will send you money.

if i was a clown i'd want to go out that way. it'd be hilarious.

this is why i describedthe method of physicaly separating it grain by grain. it will give the minimum energy required. a kWh can be a large amount depending on the scale of things. if you are working on a standard lab scale then it is a large amount (3600000 joules) but if you are on an engineering scale then its pretty insignificant.

first, you would calculate the surface area of all the particles then take away the surface area of the block as that isn't involved in the binding. then i guess you would have to experiment to see how much energy it takes to pull appart a block of concrete with known cross sectional area. then it would be a matter of ratios. this would be a very very very rough estimate likely filled with error but its around the best bet. the surface are can be worked out with relative ease but i don't know if anyone has recorded the energy it takes to pull a bit of concrete appart and i might even be totally wronf in my method.

for me it started with a large bang, spanner to the forehead and a 'WOAH! it wasn't supposed to do that, what happened?!?'

ash_wolf, the nuclear charge is the same as the number of protons it has. there ar two major factors in how tightly the outer electrons are held (how small the radii are) the nuclear charge and shielding from lower electrons. nuclear charge increases by 1 for every Z and the shielding only takes into account the electons in lower shells. so hydrogen has one electron, one proton, no shielding helium has 2 protons and electrons and no shielding. so the electrons will be held closer. than hydrogen. in general a period will have the same level of shielding but varying nuclear charge. this is why noble gasses have the smaller radii

moist air is heavier but as it rises, the moisture condenses out giving up even more heat to the air so it causes further expansion.