Who said blue doesn't occur naturally?

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Kenjuudo
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22 Jan 2013, 4:32 am

http://postimage.org/image/8nfleiktx/

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eric76
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04 Feb 2013, 1:55 am

Blue potatoes?

eric76
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04 Feb 2013, 1:57 am

Blueberries?

naturalplastic
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04 Feb 2013, 4:08 pm

blue jays?

The Blue footed booby ( another bird species)?

Blue eyed humans?

ruveyn
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04 Feb 2013, 4:18 pm

Consider the light scattered by a clear sky on a sunny day:

Raleigh Scattering produces a lot of blue light.

Also one gets blue when white light is refracted by a prism.

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04 Feb 2013, 7:04 pm

Kenjuudo wrote:

http://postimage.org/image/8nfleiktx/

I don't know of anyone saying that.

What is that organism?

beers
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05 Feb 2013, 10:58 pm

I don't know of anyone saying that either.

My dad used to foolishly say green wasn't a natural food color, to like everyone...
Kind of embarrassing.

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BlackSabre7
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06 Feb 2013, 7:43 am

Actually, I remember hearing that also, but in a discussion about flowers. Roses don't naturally come in blue. But then I remembered cornflowers, ageratum, bluebells, Cleodendrum ugandese, pansies, etc etc. I had a plant nursery, so I know a few.
I too am curious about what it is. Is that a shell in it? Otherwise it looks like a portugese man'o'war.

naturalplastic
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06 Feb 2013, 4:48 pm

Some tropical butterflies have microscopic prisms in their wings to create an irredescent blue. Awesome to see btw! Thus creating blue without pigments.

But there is alot conventional blue via blue pigment in nature as well.

Indigo, made from various commercially grown plants, is one of the oldest clothing dyes for cotten. Prior to synthetic dyes it was the cheapest- and was used for working class clothing like the first blue jeans.

MCalavera
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06 Feb 2013, 6:04 pm

eric76 wrote:

Blue potatoes?

That doesn't look blue to me.

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09 Feb 2013, 9:54 am

It's pink that doesn't exist

[youtube]http://www.youtube.com/watch?v=S9dqJRyk0YM[/youtube]

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ColdEyesWarmHeart
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09 Feb 2013, 10:08 am

waffle_house
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09 Feb 2013, 1:49 pm

One of my friends used to stay away from those blue mountain dew flavors, because he said that the coloring didn't look "natural."
I think there are many other reasons as to why mountain dew is unhealthy, lol.

eric76
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09 Feb 2013, 5:35 pm

ColdEyesWarmHeart wrote:

The first and third images aren't showing up for reasons I learned recently. The web site will only display an image only if the file name in the url ends with a suffix indicating a common image and there is nothing after the file suffix.

That is, if the image ends in a ".jpg" as in "http://www.flowersociety.org/images/flower-gallery/Morning-Glory.jpg", the image displays properly.

If the filename of the image ends in something that does not describe an image, as in the first and third image, then the text is displayed, not the image itself.

ColdEyesWarmHeart
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10 Feb 2013, 4:21 pm

eric76 wrote:

Oh I didn't know that, thanks for your help.

The other two images were like the middle one (Morning Glory flowers) but one was very pale turquoise and one a very dark blue, nearly indigo. You can see them in all sorts of shades of blue.

eric76
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10 Feb 2013, 4:27 pm

ColdEyesWarmHeart wrote:

eric76 wrote:

I just recently learned why things like that wouldn't display. I posted some images in another thread that wouldn't show up for the same reasons.

Glad to be of help.

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