14th Annual Smithsonian Magazine Photo Contest People
A guide educating the crowd about a Foucault pendulum in the Griffith Observatory.
A Foucault pendulum is a device used to demonstrate the rotation of the Earth. Judging by the expressions on the crowd's faces, not many people know what it is!
Photo Detail
| Date Taken: | 11.2016 |
| Date Uploaded: | 11.2016 |
| Photo Location: | Los Angeles, California, United States of America |
| Camera: | Canon EOS 700D |
| Copyright: | © Derrick Koo |