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Penford | 17:50 Thu 15th Jan 2009 | Quizzes & Puzzles
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9d Characteristic series of frequencies of electromagnetic radiation substances emit (7) S---T-A. Can anyone help. Don't understand the question, let alone know the answer!
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Spectra
Spectra
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Many thanks moonshadow and grasscarp, that's another one done and dusted.
Spectra?
Sorry to rubberstamp you both - not there when I posted.
No need to apologise Aqua, I am always doing this!

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