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Can some one explain polarity to me?
 
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Can some one explain polarity to me?
A-level chemists I need your help
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21 to 28 of 28 messagesPage: 1  2  
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Imperial Dave
05/10/08 19:11
yes, although most of the original posters no longer grace these hallowed halls........
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Trevor D Gamble
05/10/08 19:14
 18330 forum posts 1 review 2408 bookmarks
Well, as long as someone can perhaps help me with answers to these troublesome questions I've posed, maybe?
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Robert Harrison
05/10/08 19:31
 316 forum posts
if you break a paracetamol in two (or is it an aspirin), in the dark, it flashes.
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Trevor D Gamble
05/10/08 19:46
 18330 forum posts 1 review 2408 bookmarks
Sadly I wouldn't see it then likely as not, as I'd already be having all of the flashing in my head from my migraine attack, that caused me to reach for the pain killers in the first place!But hey thanks there anyway, Robert. Any idea what might cause all of these things blue-white flashes then at all, please? About ten years ago in Tunbridge Wells, in a novelty gift shop, I bought two pieces of chalky coloured milk quartz packaged up together, that similarly if you rub or bang together you get a white glow or a flash in the dark. Why it does this I do not know! Why I wanted to buy that I don't know either, but I did do!
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Edited: 05/10/08 19:48
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Ninja Pussy Cat
05/10/08 20:08
Imperial Dave wrote (see)
yes, although most of the original posters no longer grace these hallowed halls........
But I can remember all of them.....
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Robert Harrison
05/10/08 20:20
 316 forum posts
Trevor D Gamble wrote (see)
Sadly I wouldn't see it then likely as not, as I'd already be having all of the flashing in my head from my migraine attack, that caused me to reach for the pain killers in the first place!But hey thanks there anyway, Robert. Any idea what might cause all of these things blue-white flashes then at all, please? About ten years ago in Tunbridge Wells, in a novelty gift shop, I bought two pieces of chalky coloured milk quartz packaged up together, that similarly if you rub or bang together you get a white glow or a flash in the dark. Why it does this I do not know! Why I wanted to buy that I don't know either, but I did do!

http://en.wikipedia.org/wiki/Triboluminescence

it mentions envelopes

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Edited: 05/10/08 20:21
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Imperial Dave
05/10/08 20:43
Ninja Pussy Cat wrote (see)
Imperial Dave wrote (see)
yes, although most of the original posters no longer grace these hallowed halls........
But I can remember all of them.....

showing ya age (N)Pussy(C)......
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Ninja Pussy Cat
05/10/08 20:49
Imperial Dave wrote (see)
 
Ninja Pussy Cat wrote (see)
Imperial Dave wrote (see)
yes, although most of the original posters no longer grace these hallowed halls........
But I can remember all of them.....

showing ya age (N)Pussy(C)......
Not age, Pet, just been here longer than thee. An eight-year-old could have been here from the start.
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