Other, , Prof. Viken Kiledjian
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Updated On 02 Feb, 19
Crepuscular Rays - Sun Viewer - Shadow Lengths - Magnetic & Geometric Axis - Jupiter - Triangulation - Light Curves - Maximum Elongation of Venus & Mercury - Liquid Core of Earth - Sidereal Period of Moon - Synodic Period of Moon - Light Year and Astronomical Unit - Parsec and Light Year - Tidal Forces - Total vs Annular Solar Eclipse - Parabolic Mirrors
4.1 ( 11 )
This video illustrates how to use the iPhone Compass App to show the difference between the Geometric and Magnetic Axes of the Earth. Most people assume that these are the same but actually they are not. The magnetic north pole (in reality the magnetic south pole) changes locations from year to year and can be offset from the true north by some amount of degrees. A traditional compass shows the location of magnetic north, not true geometric north.
Sep 12, 2018
Excellent course helped me understand topic that i couldn't while attendinfg my college.
March 29, 2019
Great course. Thank you very much.