RyanJ

I agree with bombus. Computers may calculate faster but they have less power, if they ever develop bio-computers (which I am shure will be developed in the next 20 years) these will act as the brain does in array sets rather then direct linear links. Even those these are slower their power is much greater, as with the brain its slower but much, much more powerful than any computer on the planet. Computers also lack the ability to adapt, or alteast they can do so in a very limited manor, this would be more easily developed (an adaptive framework) with with bio computers. Computers are currently better for one thing right now, speed. There is no computer that can understand yet so its going to be an interesting time these next few years considering the considerable progress made in the last decade but we are still far away from a V.I.K.I style system yet Cheers, Ryan Jones

How can we know that? What if somthing went wrong? Unless you have experience working with chemicals and or have been trained to work with chemicals no amount of safety equipment can protect you. In the end if you did not know it would explode you have either not done the correct research or you do not know anything about the chemistry involved - both are reuired before you even start to try experiments as I'm shure the experts will agree with. The rules are in place for a reason; if you hurt (or kill) yourself while doing an experiment posted here then the forums could be shut down - chemistry as a hobby is hard enough now, more people getting injured or killed is the last thing we need. Cheers, Ryan Jones

Well, plasma is just normal gas that has been ionized, had some of its electrons removed. The ionization can be done by by heat or electricity. Other than that I am not shure exacly what information you are looking for - can you be a bit more specific? Cheers, Ryan Jones

They are normally highly reactive, are radicals or produce radicals when they break down. These will then find their way into the nucleus and will start to bond with the DNA which cause damage too it - the idea that is believed to cause most cancers. Its simmilar to the idea that radicals may be responsible for some of the effects of ageing Cheers, Ryan Jones

That was clever, trying it after a warning. It does explode if it did not then you did it wrong. I'm sorry to say it but the fact you tried it despite the warnings causes me concern Cheers, Ryan Jones Edit: More spelling errors than normal - fixed.

Not nessisarily, there are other ways - some interesting ones involving the collisions between two branes Black holes tends to pull everything in so there is no way it can simply explode as to do so the stuff in there would need energy to travel faster then light, faster then it can collapse back in. If light can't escape then how an matter through an explosion? Cheers, Ryan Jones

How could a black hole explode? They cn evaporate it is believed but exploding is something else comppletly... I just can't see how it would happen - any ideas? Cheers, Ryan Jones

Is it? Always though hydrogen cyanide was more toxic. Cheers, Ryan Jones

Its an unfortunate fact Most programs actually use a cross sequence algorithm that checks the product of all the values multipled by xxx and must be in a certain range or must be between two values or must contain one character at the end. This does vary but its normally some rediculously long and complex algorithm that in the end is useless. Its impossible to make it fool proof for the number of reasons the biggest being people can write a progm to brute force test the keys and when it finds a set of correst ones it can then derive the algorithm used. The best idea is to make test feature where the features are simply not there. Cheers, Ryan Jones

Thats a good one. I still think its because they simply have no idea what they are talking about. Cheers, Ryan Jones

Its sort of hard to explain right now as we do not really understand a lot of the theory. The maths itself is so complex that we can't really make any calculations from it right now, those tht we can dont really make sence yet because we do not understand some of the underlying ideas. If your looking for agood introduction but little math then read these books, I have read both and things made a lot more sence afterwards The Elegant Universe by Brian Greene The Fabric of the Cosmos by Brian Greene He made those books well worth a read If books are not your thing then this may prove interesting: http://www.pbs.org/wgbh/nova/elegant/program.html Brian should answer your questions and lead you to some more that we have yet to answer Cheers and enjoy, Ryan Jones

Yea - great fun to watch the water freeze, its certainly an unexpected reaction and most people don't see it comming. Lot of people expect heat and explosions why not shock them with a unexpected cold snap Cheers, Ryan Jones

Let me just say don't even try. There is no system for registration that is hack proof and even if there were there is still brute key generation. Cheers, Ryan Jones

OOPs missed that part... there is always ammonium nitrate and water - thats pretty cool Cheers, Ryan Jones

Well, the usual thing - people like bangs! Sodium bicarbonate and vinegar in a tub is fizzy... Heating Copper(II) sulphate pentahydrate and watch it go from blue too white and then adding water and watching it to back to blue Those should be resonably safe I think Cheers, Ryan Jones

Congradilations all! you deserve your positions Cheers, Ryan Jones

Definaty would be a good place to make "how to's" and articles and the like - could be a good use Cheers, Ryan Jones

http://en.wikipedia.org/wiki/Category:Australian_scientists I'll leave it to you to choose who you like ;-) And remember when in doubt consult Wikipedia! Cheers, Ryan Jones

A small electric motor should work, a few batteries should make it run a charm Are you looking for something a bit more specific? Cheers, Ryan Jones

Sodium is an alkali metal not a salt. For the reaction YT suggested you will need a piece of pure sodium or potassium. (This may prove interesting.) Noble gases are normally extracted through fractional distilation of air, because these are so unreactive they are hard to extract. If your looking for not-so-pure samples you can probably use reactions simmilar to YT's to remove the reactive elements and leave you with the other less reacitve elements. In the end its easier to just buy them Cheers, Ryan Jones

No, that will not make HCl Here are a few threads where this has been talked about before: http://www.scienceforums.net/forums/showthread.php?t=2034 http://www.scienceforums.net/forums/showthread.php?t=14415 You may also want to try searching Woelen's site - lots of stuff there (Found here). Cheers, Ryan Jones

Just to note, I also have this: It was reduced a few days ago I think... Cheers, Ryan Jones

Not really unless you are specific, the most common is that they are corrosive when concentrated here are a few examples: Alkalis: [ce]LiOH[/ce] [ce]NaOH[/ce] [ce]KOH[/ce] Acids (In solution): [ce]HCl[/ce] [ce]H2SO4[/ce] [ce]HNO3[/ce] ^ Above are links, click on them to see their MSDS data sheet As you can see there is a general consensus towards them being corrosive. Cheers, Ryan Jones