Browse Resources

This site includes a Java applet that displays Fourier series approximations and corresponding magnitude and phase spectra of a periodic continuous-time signal. Select from provided signals, or draw a signal with the mouse.

Learn how to make waves of all different shapes by adding up sines or cosines. Make waves in space and time and measure their wavelengths and periods. See how changing the amplitudes of different harmonics changes the waves. Compare different mathematical expressions for your waves. This simulation...

In this white paper, sponsored by GeoTech and written by Dr. Ming-Hsiang Tsou and Jennifer Smith from San Diego State's Department of Geophysics, the role of open source software in Geographic Information System (GIS) education is described. "Open source software is not well adopted in GIS education...

This website from Open Culture provides links to free online biology courses from "the world's leading universities." Some courses can be downloaded, while others are available through the web. Courses include Anatomy & Physiology from Carnegie Mellon, Brain Structure and its Origins from Gerald...

Lia Kent, of Stemgent's Research and Development team, has created this video to demonstrate "the proper technique for rapidly thawing hES cells from liquid nitrogen stocks, plating them on mouse embryonic feeder cells, and slowly freezing them for long-term storage." The video is also accompanied...

Mike Qaissaunee, an Associate Professor of Engineering and Technology at Brookdale Community College, is the author of this blog and "shares his experiences and perspectives on integrating new technologies in and approaches to teaching and learning." Qaissaunee's blog, titled "Frequently Asked Q,"...

This paper, from Roger Bohn at the University of California, San Diego, "models knowledge about manufacturing methods as a directed graph of cause-effect relationships." The paper covers changes in knowledge over time, including the shift from art to science in technical and manufacturing knowledge.

This webinar, provided by EvaluATE: Evaluation Resource Center for Advanced Technological Education, discusses data interpretation and reporting. The webinar provides "strategies for transforming data into genuinely evaluative conclusions and presenting results in visually compelling ways to aid in...

This page is a course overview for Massachusetts Institute of Technology’s (MIT) course 4.42, Fundamentals of Energy in Buildings.  Topics covered include heating and cooling systems, heat transfer of building materials, air and water vapor effects, and design strategies. The site provides a...

This webinar, provided by Clemson University, was presented by Katie Shakour and covers the fundamentals of qualitative research. During the webinar, viewers learn the "... definition of qualitative research and the most common methods and analysis techniques." The differences from quantitative...