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Thread: What's the difference in light?

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    JMurphy97's Avatar
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    What is the big difference with light between outside and inside by a bright window? They both are getting bright light so what's the difference?

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    scottychaos's Avatar
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    BIG difference!
    just having that piece of glass cuts the light by a lot.
    because the sunlight is hitting the glass at an angle, a lot of it reflects away rather than going through the glass.
    and the further from the window, the less light..

    and..the plant outside gets ambient light from the sky..not just the sun itself.
    the plant indoors gets ambient light from..the room!
    MUCH darker..

    I dont know the exact percentages, but a pot sitting one foot away from a window indoors probably gets half the light that the same pot would get sitting one foot away from the window on the outside..

    a camera photometer would give a good reading..
    I will try an experiment and report back!

    Scot

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    JMurphy97's Avatar
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    Wow that is interesting. What if the window was open then it wouldn't block any of the rays with the glass. It would at least be better then having the glass in the way if you must have your plants inside right?

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    Plants still seem to do very well and colour up under glass though!

    A window will only have light hitting from one side, compared with a greenhouse which would be clear from all sides. A lot of CPs will still be happy growing on a windowsill though.
    Alexis Vallance, U.K.
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    Always a newbie glider14's Avatar
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    i grow my vft about 6in away from a very bright window
    Everything is explainable. The seemingly unexplainable is but a result of our insufficient knowledge.- Hans Brewer

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    It's been one of dem days BigCarnivourKid's Avatar
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    Another thing to consider is that modern windows often have special coatings to further reduce certain wavelengths of light from passing through.
    ---Steve Allinger---

    How come chicken fingers are bigger than buffalo wings?

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    Tropical Fish Enthusiast jimscott's Avatar
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    Quote Originally Posted by [b
    Quote[/b] (BigCarnivourKid @ Mar. 08 2006,8:13)]Another thing to consider is that modern windows often have special coatings to further reduce certain wavelengths of light from passing through.
    That was what LauraZ5 was trying to get across to me as to why my (actually, yours) Mexican pings wouldn't flower for me.

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    red light makes plants bloom right?, hey what if one uses a PAR light, i hear that radyatyon that makes photosintesis is the greates light for plants.

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