2017-04-19-Hump Day Nooner : img_1968

2017-04-19 Wednesday 1:38pm CDT
at 30.2866850,-97.7403820 (osm) (gmap) (nearby pictures)
near 2300-2305 Whitis Ave, Austin, TX 78705

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Clearly they're observing the Sun. So what's the microphone for?