RyanJ

But you don't have any proof Science has proven that the universe is expanding at a constant acceleration rate in all directions. Redshift from many, many observations proved this the only thing that has yet to be proven is what is causing it. They think this is, as you have said, dark matter and dark energy and those will be investigated when the Large Hadron Collider is finished sometime in 2007 And yes, they are theories. But ther perfectly mathc what was expected and exactly match the results of observations, from my limited knowledge of physics yours don't seem to match them. Cheers, Ryan Jones

But there would br gravity at the center... The center of mass is where all the gravity acts. Because of the huge size of the core most of it would experience normal gravity and thus can have high compression and it therefor explaining why its solid even thought the temperature is greater than that of its melting point If I'm not expalaing what I mean well - my applogies and I'll leave it to the experts to try and prove it Cheers, Ryan Jones

I'm not shure I cna explain it - maybe one of the physics experts here can though What was originally thought was that you were correct, there could be no way that the uiverse could be expanding faster as time went on but this was later to be changed. As far as I remember it wss somethinf to do with dark matter and negative preassure, a sort of inverse cosmological constant, that is pushing the universe out faster as the matter in space gets more spread out. Or was this an effect of dark energy I'm sorry I can't explain it any better than that - if you really want another look then do borrow a copy of the Fabric Of the cosmos and see if you change your mind Chers, Ryan Jones

True! But what I said was this. If the center of Earth was small then there would be no gravity acting on some of it because its smaller relative to its center. Because the Earths core is quite large (5100 to 6378KM for the inner core) gravity does act on it and thus there is preassure to keep it solid. its the same with the other planets though ther should be a point where a planets mas is sufficient to melt the core but not to keep it solid but on Earth this is not the case This has actually been proven too. Oh, and I forgot to say welcome to the forums Some links: http://www.livescience.com/forcesofnature/050414_earth_core.html http://starryskies.com/articles/2003/08/earth.facts.html Cheers, Ryan Jones

If your interested in this topic I reccomend you read a book called The Fabric Of The Cosmos its a brailliant book - well wrth te reading even if your no physics expert (I come into this category ) I belive this was proved by looking at the redshift of objects... Infact have a general read here: http://snap.lbl.gov/brochure/ I can't find my Fabric of the cosmos book to get a quote right now I'm afraid Cheers, Ryan Jones

Happy Birthday Firefox! As I write this, I know it's still early, but just a heads up: Firefox 1.0 was released on Nov. 9, 2004! Come on everyone join the Firefox party! 100,000,000 downloads since version 1.0.0 and that must be a record! Cheers, Ryan Jones

Have a look here - its located in the right side I think... I'm shure its near the part were logcal thinking is processed. I'd check but my brother has borrowed my encyclopedia... If your interested in the brain here are a few links from my database: http://www.brainmaps.org/ http://science.howstuffworks.com/brain.htm http://faculty.washington.edu/chudler/facts.html http://faculty.washington.edu/chudler/introb.html http://www.dana.org/brainweb/ Cheers, Ryan Jones

Your welcome - a good try too Just remember that anything divided by zero is a big no-no in mathematics, its either 0 or undefined depending on the situation. If you could divide something by infinity you;d get an infinatly small value and you culd say it approches zero but it never quite gets there even at infinity Have a read arround the Dr.Math site - you may find some other thing to spark your thinking from Cheers, Ryan Jones

Depends on the cell type and the cell its self. Search Goolge images with the name of the cell your looking for and yo'll probably get some good 3D drawing results!

I'm not really shure about this - I'm at about 50/50. Because PHP is interprited it has to work through the PHP program its self in any case, this will slow it down by a bit. I suppose as with most computer things it depends on the size of the project Cheers, Ryan Jones

I'm afraid not - anyhting divided into 0 equal parts is nothing. Not true again you just get an infinatly small number. The only number by which you can divide something to get zero equal parts is zero.

Yup, I know - I know you can make some pretty poweful ones too but lets not go down that road I know you'll probably need some sort of lisance to make them (legally) and another to use tham, thats about as much as I know. I also prefume you'd need a qualification to even get those certifications - anyone know what they are or could be? In the meantime I'm gonna try and contact a pyrotechnics company and ask them about it. They should answer the questions as long as I don't go along the liunes of how to make explosives which I had no intention to do anyway Cheers, Ryan Jones

Thats true I agree with woelen, it loos like this is one of those could-be-either topics Cheers, Ryan Jones

Technically it is (Any reaction is the transfer of electrons) but in the context of this question I don't think it is classed as such So it is a chemical change but as soon as you evaporate the water it returns to its original state Cheers, Ryan Jones

Umm... I'm in trouble then My spelling is quite bad a lot of the time. Cheers, Ryan Jones

Pyrochenic Chemist - Qualifications needed? Hi there everyone! Me and a friend were talking about pyrochemistry in chem class today, I was wondering what type of qualifications do you need to be one? I suppose you'd need to be certified safe to handle the stuss adn to work with it and also what type of lisances does this require? Thanks for the help! Ryan Jones Sorry! the title should have had pyrotechnic chemist!

Yea I agree, there is no reaction between the ions and the water... you just ger sodium ions and chloride ions Cheers, Ryan Jones

Yes, there has here Cheers, Ryan Jones

Wasn't insulin's structure found through X-ray diffraction? Cheers, Ryan Jones

Double post - mods please delete it! Cheers, Ryan Jones