Help me...please

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Abel Afrit
9 Oct 06 - 19:39
yeah...really shouldnt be doing this...but....

I have Chemistry in for tomorrow. Lots of it.

I need to do a 5 min presentation on the advantages and disadvantages of modern materials over traditional ones. Anyone know anything?

BTW not asking anyone to google or stuff like that. Just things off the tops of your heads would be great.

Thanks!

bugger. no one is on line anymore.
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9 Oct 06 - 20:52
I'm actually in uni in chemistry but this is a prety random topic, what type of materials I guess you could say that traditionnal materials were cheaper and found in nature. so there is the cost. The properties of these element have been furtherreserched so you have more to base your lab results on. They are less dangerous because they are found naturally, therefore you know non-toxic bla bla bla. For example we used coal instead of uranium before. There was a lot less cancer. And so on and so forth
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Abel Afrit
10 Oct 06 - 07:35
Thank you, i might actually have a chance! I know it doesnt have much to do with chemistry...but our teacher hasnt realised that. Anyone got anything else?

Thank you thank you thank you! Youve saved me from a terrible painful death.
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Post Higher Spirit
10 Oct 06 - 15:21
Well, ain't this random and vague.
wrote:For example we used coal instead of uranium before. There was a lot less cancer
And that is stupid.

How modern exactly? You can say, Aluminium, is generally more suited for it's intended tasks than good ol Iron. You can not make a Iron aircraft. Modern matirials would be better than something you found laying around in a forest, Platanium is hell of a lot stronger than copper...

And how does this even remotely relate to chemistry? Hell, even Science at general?
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Abel Afrit
10 Oct 06 - 16:13
Bah...ya'll suck for help. well, apart from Serpent of the silver plumes, Post (sort of) and sent.
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Gladstone Golem
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10 Oct 06 - 16:18
Serpent of the silver plumes wrote: They are less dangerous because they are found naturally, therefore you know non-toxic bla bla bla. For example we used coal instead of uranium before. There was a lot less cancer. And so on and so forth
Erm no? Firstly using Uranium in reactors doesn't actually increase the rate of cancer seeing as reactors don't give off radiation to the environment, usually. And using coal would increase cancer because of breathing in all the crap it gives off.


...and Uranium is found naturally...
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Post Higher Spirit
10 Oct 06 - 16:55
Ask your teacher the exact relevance of this to the subject at large.
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Abel Afrit
10 Oct 06 - 18:45
its a new science GCSE thing, we take exams this year, then those are forgotten and we take more the next. its all really stupid. stuff we learn had nothing to do with the actual subject. something about getting british children more interested in science. biology has become all about health eating and not getting pregnant. physics is the only one that is staying the same.
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Sentynel One with The Other Place
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10 Oct 06 - 18:52
Serpent of the silver plumes wrote: I'm actually in uni in chemistry but this is a prety random topic, what type of materials I guess you could say that traditionnal materials were cheaper and found in nature. so there is the cost. The properties of these element have been furtherreserched so you have more to base your lab results on. They are less dangerous because they are found naturally, therefore you know non-toxic bla bla bla. For example we used coal instead of uranium before. There was a lot less cancer. And so on and so forth
You do chemistry at uni and you claim that natural materials aren't toxic but man-made ones are?
Let's think.
Mercury, arsenic, lead, cyanides, halogens. Five entirely natural elements/groups/compounds that are toxic, in the space of the five seconds I'm prepared to spend here.
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Abel Afrit
11 Oct 06 - 09:30
maybe he was just talking about stuff used in building houses
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Post Higher Spirit
11 Oct 06 - 14:41
wrote: biology has become all about health eating and not getting pregnant.
And chemistry is at the mercy of these stupid activities? You have my pity.
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Sentynel One with The Other Place
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11 Oct 06 - 15:43
Abel wrote: maybe he was just talking about stuff used in building houses
Granite. Releases radon gas which is highly radioactive and can kill if allowed to build up.
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Abel Afrit
11 Oct 06 - 15:58
Post wrote:
And chemistry is at the mercy of these stupid activities? You have my pity.
it wasnt what i thought, we were actually meant to be 'selling' a house. next lesson (friday) we get to make concrete blocks (which i think will be fun)
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