M*A*T*H Colloquium: Measuring to the Stars: The Apotheosis of Trig

Feb 8, 2023 , 4:00pm
Math & Statistics Department

Rick Luttmann, Sonoma State University Professor Emeritus

From the Earth we cannot measure distances to heavenly bodies directly. However, we can measure angles and time, and with a sextant and a clock as our only tools (and some occasional physics) we can work our way up—beginning with the size of the Earth; then the sizes and distances of the moon, sun, and other planets; then the distances of nearby stars, and then other stars in our galaxy; finally the distances of remote galaxies. (Along the way we infer the speed of light.) Most of our calculations are done using nothing deeper than elementary trigonometry. 


Zoom Link for Spring 2023 M*A*TH Colloquium Talks (Zoom will open at approximately 3:45 before each talk)

The M*A*T*H Colloquium is our weekly public lecture series. Talks are on Wednesdays at 4:00 p.m. in Darwin 103 and on Zoom; see link above (first four talks are on Zoom only). Maps to and of campus are available. A parking permit is required to park on campus, and is available for $5.00 at machines in the parking lots. Talks are otherwise free.

The M*A*T*H Colloquium has been in operation during every semester since Fall, 1974. See below for previous posters.

Sonoma State University
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February 8, 2023
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