This program covers the important topic of refrigerators in Physics. We begin by discussing how refrigerators are just “heat engines” operated in reverse because they require energy to pump heat away from an object. The entire lesson is taught by working example problems beginning with the easier ones and gradually progressing to the harder problems. Emphasis is placed on giving students confidence in their skills by gradual repetition so that...

Quantum mechanics gives us a picture of the world so radically counterintuitive that it has changed our perspective on reality itself. In Quantum Mechanics: The Physics of the Microscopic World, award-winning Professor Benjamin Schumacher gives you the logical tools to grasp the paradoxes and astonishing insights of this field.

Prosthetics, eyeglasses, and other aids were once seen as less-than-ideal substitutes for normal human abilities. But now technology can enhance us well beyond what’s considered normal. Examine the superhuman traits currently available and those on the drawing board. Has the era of the cyborg arrived?.

Culture imprints itself on our brains through the process of socialization. Investigate the insights that sociology provides—from the 19th-century founder of the discipline, Auguste Comte, to Herbert Spencer, Karl Marx, and Emile Durkheim, who suggested that crime has an unappreciated positive role in society..

This program covers the important topic of conservation of energy (part 1) in simple harmonic motion in Physics. We begin by discussing how in a perfect system energy is neither created nor destroyed. As the object swings, the energy is continually transferred from kinetic to potential forms and vice versa. The entire lesson is taught by working example problems beginning with the easier ones and gradually progressing to the harder problems. Emphasis...

This program covers the important topic of Doppler shift in Physics. We begin by discussing how the frequency of a sound wave can be heard differently by various observers depending on if the source or listener is moving relative to one another. The entire lesson is taught by working example problems beginning with the easier ones and gradually progressing to the harder problems. Emphasis is placed on giving students confidence in their skills by...

This program covers the important topic of heat engines and the second law of thermodynamics in Physics. We begin by discussing the theory, which involves how useful work can be done by engines which use expansion or hot gases to move a piston. The entire lesson is taught by working example problems beginning with the easier ones and gradually progressing to the harder problems. Emphasis is placed on giving students confidence in their skills by gradual...

Take a step back to define reality as understood by the ancient Greeks. Then work your way forward through revolutionary ideas about reality proposed by Plato, Aristotle, Copernicus, Galileo, Kepler, and finally Newton, who inspired the Age of Enlightenment. Close with the Romantic backlash of the 19th century..

Relativity was incomplete until Einstein formulated a general theory of relativity that incorporated gravity. See how this breakthrough demolished the age-old idea of gravity as a force, replacing it with the concept of warped spacetime, leading to strange predictions such as black holes..