This is an article published on March 23, 2008. It describes that recent research at the National Institute of Standards and Technology (NIST) has demonstrated that thin films made of "metamaterials"--manmade composites...

This is an animation of a comparator with noisy input voltage. The device compares the voltages and switches to the larger one. Voltages and parts of the circuit of this 3-D animated gif are highlighted with different...

This website on electronics is set up to explain electronics, how it works, and how it relates to the mad lab parts for their electronic kits. The lessons are free and gives good basic information for the beginner....

Created by Terry L.M. Bartelt of the Wisconsin Online Resource Center, this is an object lesson on AC current flow. This is a nice brief introduction to this specific topic. Its employment of Flash allows useful...

All About Circuits is a website that “provides a series of online textbooks covering electricity and electronics.” Written by Tony R. Kuphaldt, the textbooks available here are wonderful resources for students, teachers,...