The Meridian Orrery uses an ESP32, 3D parts, magnets, and motors to build a self-updating tabletop solar system. Uses an ESP32C3 and DS3231 RTC to calculate planet positions offline after a one-time ...
As air-conditioning billows into the Special Exhibitions Gallery on the second floor, Sara J. Schechner ’79, curator of Harvard’s Collection of Historical Scientific Instruments, and Richard L.
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