A simple explanation of how a transistor works. Most introductory textbooks do a very poor job of explaining the details of how transistors work. First they assume that the Base current is somehow controlling the...

This inquiry lesson teaches students about the properties of materials, specifically they will learn about superhydrophobic coated materials in contrast to uncoated materials. This contains a teacher's preparatory guide...

This NSF funded site, at the University of Virginia, shows how semiconductors and transistors are constructed and work. This is a Virtual Science Lab that lets the users see how semiconductor crystals work and how they...

This lab, presented by the National Nanotechnology Infrastructure Network, covers the concept of relative size. Students will learn that "cells are quite big when compared to nanomaterials" and examine ways to keep...

Published by the National Nanotechnology Infrastructure Network, and created by Alonda Droege and the University of Washington, this 50-minute activity "explores how nanotechnology can be used to change the properties of...