Jeff Smith 3 p.m., March 10
Tom Deméré reads our rocks.
Rocks are for climbing, collecting, throwing, building. They're also full of information, if you can read a rock. Scientists who become fluent in rock — geologists — peruse these old, hard texts and interpret them. ...
Ana Groening 1:30 p.m., March 10
Garrett Harris noon, March 10
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