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Author Topic: Who uses artificial light???  (Read 3685 times)

Anthony Darby

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Re: Who uses artificial light???
« Reply #15 on: January 16, 2009, 08:37:01 PM »
I demonstrate a light meter to 3rd year pupils in our 'Biosphere' biology topic that to equal the light coming in the window on a cloudy day the meter needs to be a foot away from a single tube. Our light bank holds 4 x 4' fluorescents and can be lowered to that distance using a chain and pully.
Anthony Darby, Auckland, New Zealand.
"Nothing in biology makes sense except in the light of evolution"
http://www.dunblanecathedral.org.uk/Choir/The-Choir.html

shelagh

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Re: Who uses artificial light???
« Reply #16 on: January 18, 2009, 04:30:11 PM »
I hope you all realise that if I take up Tony Goode's idea for putting together a lecture you are all going to have to send me pictures of these green/alpine houses, with or without lights.
Shelagh, Bury, Lancs.

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Maggi Young

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Re: Who uses artificial light???
« Reply #17 on: January 18, 2009, 04:49:43 PM »
I hope you all realise that if I take up Tony Goode's idea for putting together a lecture you are all going to have to send me pictures of these green/alpine houses, with or without lights.
You tell them, Shelagh!!
Margaret Young in Aberdeen, North East Scotland Zone 7 -ish!

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JohnnyD

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Re: Who uses artificial light???
« Reply #18 on: January 20, 2009, 12:15:01 PM »
All I need now is to get that *#@*~* electrician to wire up the alpine house and I can make a start! >:(
John
John Dower, Frodsham, Cheshire.

 


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