π Learningπ TucsonFreeOpen to all
Heliographs: Frontier Arizona's Communication by Sunlight
WhenWed, Sep 23, 10:30 AMπ
Add to calendarWhereOro Valley Public LibraryMeeting RoomπΊ Apple MapsπΊ Google Mapsπ UberHostPima County Public LibraryCostFreeCapacityOpen β no spot limit
About this event
Adults (18+), Teens (14-18 years). During the 1880s in Arizona, U.S. Army soldiers used high quality, sunlight reflecting heliographs for communication. Learn how this technique was used to keep soldiers and settlers safe. Presenter: Lee Krsiean - retired CIA Intelligence Analyst Sponsored by the Oro Valley Historical Society.
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