Sigma Xi Orange County Chapter
The National Advisory Committee for Aeronautics
- NACA - celebrates the 100th anniversary of its founding. NACA was the predecessor of NASA.
The National Sigma Xi celebrated its 125th anniversary in 2011.
American Scientist, the flagship publication of Sigma Xi,
celebrated its 100th anniversary in 2012.
September 17th, 2019: “Were Ancient Maya Builders Sophisticated Sonic Designers?”
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