Thanks, Alan.
Don't know. Oddly I thought off calling it Spiral because the staircase
with fern made me think of sea shell. Cross-cut, with a denser center. I
didn't call it that because it was a "spiral staircase." GMT. Heh.
Marnie aka Doe
On 7/5/2017 9:36 PM, Alan C wrote:
I agree.
I often wonder why "spiral" is used to describe such staircases. Spirals
are actually 2D shapes (like a clock spring) wheras the 3D version is a
Helix (like DNA). Some pundits say that a helix is simply a 3D spiral
with constant radius.
Alan C
-----Original Message----- From: Mark C
Sent: Thursday, July 06, 2017 6:04 AM
To: Pentax-Discuss Mail List
Subject: Re: PESO - Spiral
Great image - the stairs, tiles and plant work together well, but the
guy on the stairs nad the B&W rendering really seal the deal.
On 7/4/2017 6:56 PM, Marnie (aka Doe) wrote:
Also taken 2011. In Embarcadero Center, SF.
I am inordinately fond of this photo, because normally when I do
"street photography" (i.e. people I don't know), they don't end up
where I want them.
I was positive I showed this on PDML before, but have found no
indication that I actually ever did. I have shown it on Facebook.
http://www.mapphotography.org/PAWS/pages/spiral.htm
Comments welcome.
Marnie aka Doe :-)
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