Browse Resources

Look inside a resistor to see how it works. Increase the battery voltage to make more electrons flow though the resistor. Increase the resistance to block the flow of electrons. Watch the current and resistor temperature change. This simulation of a battery-resistor circuit is from the physics...

This archived webinar from Linda Kekelis and Jeri Countryman of Techbridge presented "practical strategies and resources that will help teachers, Girl Scout Leaders and after-school program providers to conduct outreach." The main goal of the Techbridge program is to "encourage girls in technology,...

These presentation slides, from the Nanotechnology Applications and Career Knowledge (NACK) Center, are from a webinar that discussed recruiting underrepresented minorities in STEM fields. The presentation focused on recruitment strategies, shared resources, gauged the impact of these efforts, and...

How did Rutherford figure out the structure of the atomic nucleus without looking at it? Simulate the famous experiment in which he disproved the Plum Pudding model of the atom by observing alpha particles bouncing off atoms and determining that they must have a small core. This simulation of a...

A Java applet for signal sampling at various sampling frequencies, and signal reconstruction from samples using various low-pass filter cutoff frequencies. Select from provided signals, or draw a signal with the mouse. This demonstration labels frequency in units of radians per second.

This resource provides an introductory activity on scanning tunneling microscopy. As the module states, "a scanning tunneling microscope is a powerful tool for observing and manipulating the atomic-scale world." The activity covers concepts such as the tunneling effect, scanning the surface, two...

This MEMS 101: Introduction to Microsystems (MEMS) webinar was presented by the Southwest Center for Microsystems Education (SCME) on October 21, 2011, and is offered as an Elluminate Live! recorded Session. Presenters include Barb Lopez, Research Engineer at the University of New Mexico and...

This MEMS 103: Biomedical Applications of Microsystems webinar was presented by the Southwest Center for Microsystems Education (SCME) on January 20, 2012 and is offered as an Elluminate Live! recorded Session. Presenters include Barb Lopez, Research Engineer at the University of New Mexico and...

This resource provides an introductory activity on the basics of semiconductors. Core concepts include understanding holes as charge carriers, doped semiconductors, the P-N junction, energy levels and energy bands, and band structure and conductivity. The interactive module allows students to test...

A Java applet that illustrates the utility of the sensitivity and complementary sensitivity functions for linear control system design. Sketch a reference input and disturbance input with the mouse, and select a sensor noise level. Then drag open-loop system poles and zeros with the mouse to track...