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Randy Sargent
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To measure air pollutants cheaply, distribute cheap spectrometers pointed at the white FAA strobes atop antennas and other high structures. Flashing lets the spectrometers capture differential readings with and without the light source.

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PAPA 14, including a collection of 450 pinball machines besting any museum, will open to the public in Pittsburgh this year from 8/11-8/14, with most machines available for public, non-tournament use. Looking forward to getting my fix of Black Knight 2K, Pinbot, and Theatre of Magic.
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