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stshank: A. fountain
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stshank: sunset
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stshank: Happy Mother's Day
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stshank: High School "Clue" play
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stshank: High School "Clue" play
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stshank: PXL_20220508_221831320
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stshank: Things to Do: Play Triks on Prents
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stshank: IMG_7252
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stshank: Donut hands
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stshank: 1945 San Francisco Chronicle
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stshank: Hobart Building, San Francisco
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stshank: Sanitation Station
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stshank: San Francisco Caltrain station
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stshank: San Francisco Caltrain station
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stshank: Planimeter
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stshank: Planimeter-enabling Green's Theorum
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stshank: Lawrence Hall of Science
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stshank: DNA play structure, Lawrence Hall of Science
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stshank: DNA play structure, Lawrence Hall of Science
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stshank: San Francisco, Yerba Buena Island, Bay Bridge
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stshank: Lawrence Hall of Science
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stshank: Lawrence Hall of Science
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stshank: Lawrence Hall of Science
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stshank: Berkeley from Lawrence Hall of Science
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stshank: Paper airplane launching machine
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stshank: Lawrence Hall of Science
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stshank: Pushy peggy
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stshank: Levitating balls
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stshank: Levitating balls
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stshank: Windmill top table