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birding-aus
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| To: | "Birding-Aus" <> |
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| Subject: | Using red light to presrve night vision |
| From: | "Robert Inglis" <> |
| Date: | Tue, 22 Sep 2009 11:19:28 +1000 |
Some information about using red light to preserve night vision is found at: http://en.wikipedia.org/wiki/Night_vision See the section "Biological night vision" Bob Inglis Sandstone Point Qld =============================== www.birding-aus.org birding-aus.blogspot.comTo unsubscribe from this mailing list, send the message: unsubscribe (in the body of the message, with no Subject line) to: =============================== |
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