Lives in Palo Alto USA, CA, United States
Works as a technical manager
Has a website at http://highwire.stanford.edu/~sack
Joined on Jul 15, 2002
John Sack's recent activity
John Sack has no recent activity in the last 12 months.
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|Blue and yellow in water by fireplace33|
from Ink and water
|Kylmä joki kopio by Kaappo|
from Shutter speed 1/25 or slower
|WR_2.8_13 copy copy by photoprof|
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