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The geometry of the human handprint

Take a moment to observe a scene somewhere not crafted by human hands: a forest, a creek bed, a meadow, a hillside, a leaf.  How often do you see right angles?

A snake seen near the MacRitchie reservoir on Singapore (probably a Wagler's pit viper Tropidolaemus wagleri, see Figures 5 & 6 at http://www.ecologyasia.com/verts/snakes/waglers_pit_viper.htm).  Photo by Erik S. Peterson colorjedi.tumblr.com

A snake seen near the MacRitchie reservoir on Singapore (probably a Wagler’s pit viper, Tropidolaemus wagleri; see Figures 5 & 6 at http://www.ecologyasia.com/verts/snakes/waglers_pit_viper.htm). Photo by Erik S. Peterson colorjedi.tumblr.com

There is one place you can easily find a right angle.  Hold your hand out flat, and stretch out your thumb.  Coincidence?  Maybe….

Looking a bit rectilinear, hmm...

Looking a bit rectilinear, hmm…

The human handprint has a long history of being associated with our creativity.

The human handprint has a long history of being associated with our creativity.

#inyourpalm The Power is In Your Palm - to protect wild orangutans from deforestation for palm oil production. Photos by me (M. Merrill).

“The Power Is In Your Palm” What are we choosing to do with our amazingly dexterous hands and spectacularly opposable thumbs? Choose wisely. (See http://inyourpalm.org to learn more about how to protect wild orangutans from deforestation for palm oil production.)

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