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Science > Physics |
| User: |
"" |
| Date: |
05 Dec 2007 03:13:21 AM |
| Object: |
Bioluminescence and light filters |
Hi there,
I have a layman's question and not sure this is the right place to
ask, so feel free to tell me where to go :)
In case of bioluminescence (not fluro- or phosphorescence) - is it
possible to see the luminescence in daylight and what sort of optic
filter/ light source (like UV light?) would make it visible?
If such source exists, how does it affect the visible colour spectrum?
i.e. red looks black, White=? and so on.
Thanks in advance,
Sanna
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| User: "CWatters" |
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| Title: Re: Bioluminescence and light filters |
05 Dec 2007 02:48:58 PM |
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<bratbag@internode.on.net> wrote in message
news:e3e43c1c-f590-429c-8ce0-99207ba11d84@s12g2000prg.googlegroups.com...
Hi there,
I have a layman's question and not sure this is the right place to
ask, so feel free to tell me where to go :)
In case of bioluminescence (not fluro- or phosphorescence) - is it
possible to see the luminescence in daylight and what sort of optic
filter/ light source (like UV light?) would make it visible?
If such source exists, how does it affect the visible colour spectrum?
i.e. red looks black, White=? and so on.
Thanks in advance,
Sanna
Perhaps..
http://www.youtube.com/results?search_query=Bioluminescence+&search=Search
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| User: "Androcles" |
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| Title: Re: Bioluminescence and light filters |
05 Dec 2007 04:44:43 AM |
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<bratbag@internode.on.net> wrote in message
news:e3e43c1c-f590-429c-8ce0-99207ba11d84@s12g2000prg.googlegroups.com...
: Hi there,
:
: I have a layman's question and not sure this is the right place to
: ask, so feel free to tell me where to go :)
:
: In case of bioluminescence (not fluro- or phosphorescence) - is it
: possible to see the luminescence in daylight and what sort of optic
: filter/ light source (like UV light?) would make it visible?
:
: If such source exists, how does it affect the visible colour spectrum?
: i.e. red looks black, White=? and so on.
:
: Thanks in advance,
: Sanna
Bioluminescence is radiation from a living organism (such as the firefly)
and needs no additional source of light. How you define "daylight"
is rather vague, one can see the Moon in daylight and EASILY see
fireflies at dusk or on a day with heavy cloud, less easily in
bright sunlight at noon, but that's partly because the firefly
doesn't want to come out and play when he can't be easily
seen, but if he did he would be seen. Stars can be seen in
daylight if you view them from the bottom of a well or deep
pit, the ability to see is dependent on ambient conditions and
varies from person to person.
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| User: "Andy Resnick" |
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| Title: Re: Bioluminescence and light filters |
05 Dec 2007 08:45:26 AM |
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wrote:
Hi there,
I have a layman's question and not sure this is the right place to
ask, so feel free to tell me where to go :)
In case of bioluminescence (not fluro- or phosphorescence) - is it
possible to see the luminescence in daylight and what sort of optic
filter/ light source (like UV light?) would make it visible?
If such source exists, how does it affect the visible colour spectrum?
i.e. red looks black, White=? and so on.
Bioluminescence can sometimes be seen fairly easily, but not in daytime.
Fireflies, for example. Certain bioluminescent plankton also light
up when disturbed:
http://science.howstuffworks.com/bioluminescence2.htm
http://www.biobay.com/cd/webhtml/lfglow2.htm
--
Andrew Resnick, Ph.D.
Department of Physiology and Biophysics
Case Western Reserve University
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