A short lecture on evaluation of Complex integrations for Geophysics
Avradip Ghosh, University of Houston-University Park
In Geophysics, we heavily use Fourier/Laplace, or inverse Fourier/Laplace transforms in all branches. Anyone who has tried to evaluate them using pen and paper (especially an inverse Fourier/Laplace transform) ...

Visualizing Sun Position of the Seasons
Chris Sinton, Ithaca College
The goal of the exercise is to help students visualize and better understand how the sun changes apparent position over the course of the seasons.

Conceptest: Equator tilt
David McConnell, North Carolina State University
What would happen to the average temperature at the equator during our summer if the tilt angle of Earth's axis increased to 27 degrees? A. Temperatures would increase B. Temperatures would decrease C. ...