You are welcome to experiment. Please always be careful. Whatever you
try may or may not work. Do you have a scientific theory you want to
test by trying something else?
Nina Thayer
Snacktalk Moderator
>
> dear sir/madame
>
> we are a group of year nine students looking at a problem for a competition. we have seen your site on water sphere lens and were wondering if there are any other instruments to use instead of a candle or lightbulb.
>
> if you can help it would be most appreciated.
>
> Sonja Wilson
>
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