Monday, May 2, 2011

TTC Video : Physics in Your Life

Physics in Your Life

Physics in Your Life is more than a course in physics and more than a laundry list of "how things work." In fact, it combines the two, offering a back-and-forth interplay between everyday applications of physics and the concepts needed to understand them.
This course is organized into six modules, treating five specific realms of physics and their related applications, plus a sixth area devoted to a potpourri of topics:

Module 1 (Lectures 2-6), "Sight and Sound," begins with the technology behind CDs and DVDs, using these devices as a springboard to study light, sound, and other phenomena. You will explore how these principles relate to such topics as rainbows, optical fibers for communications, musical instruments, and laser vision correction.

Module 2 (Lectures 7-12), "Going Places," looks at motion and its connection to modes of transportation such as walking, automobiles, airplanes, and interplanetary probes. This module is based on Newton's laws, generalized to include such topics as fluid motion, conservation of energy, and the dynamics of space flight.

Module 3 (Lectures 13-18), "Plug In, Turn On," looks at the intimate connection between electricity and magnetism that is at the heart of technologies from electric motors and generators to videotapes and credit cards. Electricity and magnetism join to make possible electromagnetic waves, which enable the growing host of wireless technologies.

Module 4 (Lectures 19-24), "From Atom to Computer," starts with the element silicon and builds through progressively larger scales-transistors, logic circuits, microprocessors, motherboards, and peripherals-to create a conceptual picture of how a computer works.

Module 5 (Lectures 25-30), "Fire and Ice," introduces heat with topics ranging from physics in the kitchen to Earth’s climate and how humans may be altering it. Also covered are thermal responses of materials, including the unusual behavior of water in both liquid and solid form. The module ends with the second law of thermodynamics and its implications for human energy use.

Module 6 (Lectures 31-36), "Potpourri," offers a final miscellany of topics in physics: the workings of the space-based Global Positioning System; rotational motion in phenomena from dance to pulsars; lasers and their many uses; nuclear physics and its multifaceted role in our lives; the mechanics of the human body and how physics enables us to explore the body through medical imaging; and the evolution of the universe from the Big Bang to you.