Saturday, April 30, 2011
Friday, April 29, 2011
Thursday, April 28, 2011
Monday, April 25, 2011
Friday, April 22, 2011
Monday, April 18, 2011
Saturday, April 16, 2011
Thursday, April 14, 2011
Wednesday, April 13, 2011
Monday, April 11, 2011
Sunday, April 10, 2011
crocheted lichen
artist Carol Hummel is currently working on an exhibition crocheting lichen at the Morton Arboretum. the exhibit officially opens on May 20.
LICHEN link
Friday, April 8, 2011
blue tapetum lucidum
this is the layer on the back of the eye of a cow. it helps with the animal's night vision. the heart of the ocean tapetum layer can be found in other strange reflective eyes in the dark creatures like cats, dogs, and spiders. it reflects visible light back through the retina, increasing the light available to the photoreceptors. it has been known to improve vision in low-light conditions, but can cause the perceived image to be blurry from the interference of the reflected light.
we do not have them.
isn't it exquisite?
Thursday, April 7, 2011
Wednesday, April 6, 2011
Tuesday, April 5, 2011
Monday, April 4, 2011
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