In 1965, Gordon Moore observed that the number of transistors on a silicon chip doubled every technology generation (12 months at that time, currently 18-24 months). He predicted that this trend would continue for a while. Forty years later, Moore's Law continues to hold. Since the number of transistors in a circuit is a measure of the circuit's computational power, the doubling of transistor counts compounded over a 40 year period has led to an enormous increase in the performance of electronic devices and a corresponding decrease in their cost per function. The result has shaped our modern world by making computers, personal computers, cell phones, portable music players, personal digital assistants, etc. pervasive. This talk is an overview of a technology that shaped the 20th Century and that may have a similarly profound impact on the 21st Century. I'll explain how engineers double the number of transistors per chip, the challenges they face as they strive to continue Moore's Law, and take a brief look at some new technologies that researchers are examining.

What is a nanowire? What is a nanotube? Why are they interesting and what are their potential applications? How are they made? This presentation is intended to begin to answer these questions while introducing some fundamental concepts such as wave-particle duality, quantum confinement, the electronic structure of solids, and the relationship between size and properties in nanomaterials.

See how the equation form of Ohm's law relates to a simple circuit. Adjust the voltage and resistance, and see the current change according to Ohm's law. The sizes of the symbols in the equation change to match the circuit diagram.

See how the equation form of Ohm's law relates to a simple circuit. Adjust the voltage and resistance, and see the current change according to Ohm's law. The sizes of the symbols in the equation change to match the circuit diagram.

See how light knocks electrons off a metal target, and recreate the experiment that spawned the field of quantum mechanics.

See how light knocks electrons off a metal target, and recreate the experiment that spawned the field of quantum mechanics.

This introductory, algebra-based, one-semester college physics book is grounded with real-world examples, illustrations, and explanations to help students grasp key, fundamental physics concepts. This online, fully editable and customizable title includes learning objectives, concept questions, links to labs and simulations, and ample practice opportunities to solve traditional physics application problems. Derived from College Physics by OpenStax.

Physics Classroom is intended for beginning physics/physical science students of all ages and their teachers. It offers a tutorial, interactives, concept builders, Shockwave studios, multimedia studios, and much more. This free web-site contains lessons, interactives, simulations, photo galleries, laboratory exercises, and the option to purchase additional assessment materials/ and for educators.

Main emphasis on electricity and magnetism. Topics include currents and DC circuits; capacitance, resistance, and nonsteady currents; Coulomb's Law and electrostatic fields; Gauss's Law; electric potential; magnetic fields of currents; electromagnetic induction; magnetism and matter; AC circuits and resonance; Maxwell's equations; electromagnetic fields in space; electromagnetism and relativity; electromagnetic radiation as waves and photons. Kits of equipment are provided for the performance of a relevant take-home experiment as part of the homework each week. This course is an introduction to electromagnetism and electrostatics. Topics include: electric charge, Coulomb's law, electric structure of matter, conductors and dielectrics, concepts of electrostatic field and potential, electrostatic energy, electric currents, magnetic fields, Ampere's law, magnetic materials, time-varying fields, Faraday's law of induction, basic electric circuits, electromagnetic waves, and Maxwell's equations. The course has an experimental focus, and includes several experiments that are intended to illustrate the concepts being studied.

Included in this resource are several project guides for the first unit (Basic Components and Circuits) of the Snap-Circuits Basic Electronics Kits manual. These are to be used in conjunction with the provided manual as a guide for students to engage in inquiry-based project learning. There are also project guides for use with PhET online simulations on basic circuits. (Students should have access to multimeters for these activities)

Included in this resource are several project guides for the second unit (Motors and Electricity) of the Snap-Circuits Basic Electronics Kits manual. These are to be used in conjunction with the provided manual as a guide for students to engage in inquiry-based project learning. There are also project guides for use with PhET online simulations on basic circuits. (Students should have access to multimeters for these activities)

Included in this resource are several project guides for the third unit (Resistance) of the Snap-Circuits Basic Electronics Kits manual. These are to be used in conjunction with the provided manual as a guide for students to engage in inquiry-based project learning. (Students should have access to multimeters for these activities)

Dope the semiconductor to create a diode. Watch the electrons change position and energy.

Dope the semiconductor to create a diode. Watch the electrons change position and energy.

At the University of St. Thomas in Minnesota, this engineering professor and her team demonstrate that science or engineering lessons can be found in almost anything -- and a sense of play can make those lessons accessible and incite young minds.

Why do the lights turn on in a room as soon as you flip a switch? Flip the switch and electrons slowly creep along a wire. The light turns on when the signal reaches it.

Why do the lights turn on in a room as soon as you flip a switch? Flip the switch and electrons slowly creep along a wire. The light turns on when the signal reaches it.