Unit 4: GPS and infinitesimal strain analysis
Vince Cronin, Baylor University (Vince_Cronin@baylor.edu) Phil Resor, Wesleyan University (presor@wesleyan.edu)
Students work with GPS velocity data from three stations in the same region that form an acute triangle. By investigating how the ellipse inscribed within this triangle deforms, students learn about strain, strain ...

How to use the HR diagram
David Kobilka, Central Lakes College-Brainerd
Astronomy students learn how to use the Hertsprung-Russel diagram by plotting stellar data. HR diagram then reveals evolutionary stage of stars.