Tuesday, March 31, 2009
March 28, 2009
Boulder Earth Hour. The world is suppose to turn out lights for an hour. Not so impressive here.
Friday, March 27, 2009
Sunday, March 22, 2009
Saturday, March 21, 2009
Friday, March 20, 2009
Thursday, March 19, 2009
Wednesday, March 18, 2009
Tuesday, March 17, 2009
Monday, March 16, 2009
Sunday, March 15, 2009
Friday, March 13, 2009
Thursday, March 12, 2009
Wednesday, March 11, 2009
Tuesday, March 10, 2009
Monday, March 9, 2009
March 9, 2009
Worn out bike rear derailleur pulley. The one on the left has 10,000 miles on it. The one on the right was cannibalized from a derailleur with much less.
Of course I did lie a little. The one on the right has one more tooth than the on the on the left.
Of course I did lie a little. The one on the right has one more tooth than the on the on the left.
March 7, 2009
Depth of field example.
From left to right, the f-stops are; f/1.8, f/5.6, and f/11 f/22.
From left to right, the f-stops are; f/1.8, f/5.6, and f/11 f/22.
Saturday, March 7, 2009
March 6, 2009
This is a photo of the shadow of a ball bearing hanging from a nail (using a magnet) being illuminated by a large laser beam. The patterns are a phenomenon called laser diffraction. Also, that small bright spot in the center of the circle called a Poisson spot. This demonstrates the wave nature of light.
Wednesday, March 4, 2009
Tuesday, March 3, 2009
Sunday, March 1, 2009
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