RyanJ

Bacteria were the first single cell life forms to evolve (Maybe its debatable though) and they are still here - even after we are gone they probably will be Cheers, Ryan Jones

Ah yes uncertaintly. The observer moving along would be able to measure it as they are moving relative too one and other but the stationary one would not be able to thanks to quantum uncertaintly - gocha Cheers, Ryan Jones

Constants: globally or local to a reference frame? Hi everyone! I put this here because it is just as much SR oriented as QM but if a mod feels it should be somewhere else please move it I recently came upon this idea when thinking about light speed and have a few things I need cleared up... If we had a piece of string just bigger then the plank length and we accelerate it. We have one observer moving with this item at high speeds (99.9% of light say) and one not moving with the object. Due to the fact that things contract from the "stationary" observers reference point he should not be able to measure the length as it will have gone below the plank length but the moving observer will be able to measure it. Here is the question: is the constant only a constant for your reference frame becaue it can't seem to be a global one because what is a plank length to the moving observer is not to the stationary one? Insights anyone (If I made a mistake in my reasoning point that out for me, happens a lot ) Cheers, Ryan Jones

Hi all! It seems there are a lot of threads about black holes latley so how about we have a collection of useful information in one place as an easy reference source that can be used hen ansering these threads? First I'll start posting some links Wikipedia - Black Holes Black hole FAQ A guide to black holes Formation & Life of a black hole CGI of black holes Black holes and gravitational waves Linking black holes and string theory Lots of black hole information If anyone wants to post formulas, FAQ's, references, links etc. that would be great Cheers, Ryan Jones

As far as I know it does agree String theory uses the gravition as the particle version of gravity just as it does the photon for light and seeing as it is hoped to be the T.O.E it must act the same I guess Cheers, Ryan Jones

It seems it could be trimethyl borate - a compound formed in the reaction that vapourises at 67 degrees C. Not shure but it certainly seems like (Lets hope one of the experts can prodvide more insight) Either way I agree - the stuff should not be inhailed if possible. Cheers, Ryan Jones

Well yes - the universe can't ever be empty, there are always things in it to prevent it being so. There are vaccum fluctiation, virtual particles created and detroyed etc. Cheers, Ryan Jones

I was refering to it in such a context, if you have a working knowledge of chemistry there should be less risk of a problem because you can predict what should occur and prepare for it Same with correct equiptment which is useless sometimes if you do not know how it should be used. Cheers, Ryan Jones

A gravition is basically another way to think of a gravitational field, its a concept. Its hard to picture how it woud function if it were a particle in this case so its probably best to think of it as a field. I suppose you can think of it in the sameway as you do how photons can be a form of light and how the light ways can be an example of waves. All I know is that gravitions have a 2 spin and are always attractive, sorry if I am of little help Cheers, Ryan Jones

Yes there is no such thing as empty space, everything has something in it - vaccum fluctuations for example. Quatum fluctuations always occur as is my understanding. Cheers, Ryan Jones

Very interesting, it seems like a very unusual statistical anomaly especially seeing as just about everything in the universe is seen to be on equal footing in physics so what was different here... Who knows, if string theory is corret the answer we seek may be buried deep within the equations Maybe it was something odd about the chaeotic nature of space at the time this occured causing some unexpected changes that created the inballance... could be anything. Cheers, Ryan Jones

Good question to which I do not have an answer The question is intresting for one reason, probability says that because anti-matter and matter are just "reversed versions" of one and other there should have been equal numbers made and so we should have a universe full of gamma radiation, and yet here we are so something obviously caused some sort of inballance somewhere. I find this cause of asymmetry very odd actully... Cheers, Ryan Jones

Yes I know how much it is... its not only text its other things, audio, picture and even moving pictures. Also consider that the brain physially makes connections while a computr simply puts a 0 or a 1 for each bit on a disk or in a RAM slot. I'm not saying the estimate presented here was close but I am saying is a lot more then we probably believe it is When you think of it in the prespective of the shere volume of data stored it makes my headhurt, all that information accumulated over an entire lifetime... its a lot. Cheers, Ryan Jones

Unfortunatly its the truth, you asked an unanswerable question. There are many theories each with its own set of circumstances and each a result of a completly different idea, right now it could be any of them If you believe the big bang idea is correct (Which I do) when its all to do with gravity, [math]E=mc^2[/math] and electrostatic attractions. In the bang there was a lot of energy produced, some turned into matter and some into anti-matter. There was more matter then anti-matter so there was a "little" matter left over at the end of this (still talking on quark scales). As in the formation of the planets these then "clumped" together forming our elementary particles, which then attracted one and other forming atoms and so on untill we get stars and planets, galxies and everything else. Another interesting theory is the one of the collision of two branes, I find this theory really interesting too This is one of the biggest qustions and its probably one to which we will never have the answer but it will not stop anyone from trying to find the answer anyway! Cheers, Ryan Jones

No, no. Add the salt ([ce]NaCl[/ce]) to sulphuric acid ([ce]H2SO4[/ce]) and then collect the gas that is produced ([ce]HCl[/ce]), dissolve in water and you have hydrochloric acid http://81.207.88.128/science/chem/exps/expshow.cgi?index=255 Woelen's site is a valuable source for looking up experiments and here is the one we want Cheers, Ryan Jones

Well... not a lot. Dissolve it in Sulphuric acid to make some HCl, dissolve in water and make Hydrochoric acid. Other then that some elctrolysis maybe... not a great deal you can do with it :S Cheers, Ryan Jones

Yea that would be like trying to hook up a modem to an ariel and expecting to see a TV picture on the computer. There would need to be something to turn the neuron's pluses into somethingthe computer can understand - just like the modem does for the "noise" over a phone line Rightnow we have no idea how we could possible do that Cheers, Ryan Jones

The idea is a general one, recognition is simple comparative recognition is a pain. Computers have to be told exaly what to look for so with applications where there are variations then it is much harder. There are much more complex things and I agree we will not be able to replicate them untill we understand then - I'm not shure we will even then. Emotions are one great example - we are not shure if its a specific process or something related to everything else. Like I said it will be an interesting next 20 years Cheers, Ryan Jones

Ah yes that would fit their general attitude quite well. If they ever claim that they should never take macine again as it is "playing god" bby speeding up a process which your body should fix naturally. Cheers, Ryan Jones

Hmm... interesting image! The closest I could think would be the jets that are expelled from the centers of some galaxies, if two of these were orbiting each other in a regular, circular obit then they would make a pattern simmilar to that. Maybe something simmilar on a smaller scalles? Cheers, Ryan Jones

Ionize is to remove an electron, in this case the hydrogen ion has lost an electron so it has been ionized. The definition for an electrolyte is a substance that dissociates into free ions when dissolved or molten. Lets take HCl for example: [ce]HCl_{(aq)} <=> H_{(aq)}^{+} + Cl_{(aq)}^{-}[/ce] Make sence? Cheers, Ryan Jones