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82) Chaos Theory
Description
Traditional attempts to understand the world assumed that it was regular, simple, periodic, and predictable. But nature surprised scientists, giving them a richer picture of reality through chaos theory, which includes fractal structures. Learn how chaos is not randomness but a previously unimagined complexity within the universe..
Description
This program covers the important topic of sound intensity and sound level in Physics. We begin by discussing how sound waves carry energy and how it is sometimes convenient to discuss the energy carried by a wave in terms of its sound intensity or sound level. 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...
Description
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..
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Modern technology has transformed procreation, birth, and parenting. Given the different donor and surrogate options, it’s perfectly possible to have a child with five biologically contributing parents. What are the implications of this revolution, especially if human cloning becomes the next new option?.
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Apply the reality-analyzing tools you’ve learned in the course to the problem of life. Consider the close connection between life and sunlight. Then look at the startling exception to this rule: the fauna that flourish around volcanic vents in the dark ocean depths. What does this tell us about life’s origins?.
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Can physics explain consciousness? Start with Descartes, who held the dualistic view that the mind and body are separate, and see how materialists countered that brain processes produce the mind. Then discover what physics has to say about free will, and probe the famous thought experiment involving Schrodinger’s cat..
Description
This program covers the important topic of heat transfer by conduction, convection, and radiation in Physics. We begin by discussing the how energy is transferred from an object using these three primary mechanisms and how they might be observed in everyday life. 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...
Description
This program covers the important topic of oscillations (part 1) and simple harmonic motion in Physics. We begin by discussing how oscillations arise in nature and how everyday processes such as pendulums lead to simple harmonic motion. We also discuss how this motion can be modeled by a sinusoid. The entire lesson is taught by working example problems beginning with the easier ones and gradually progressing to the harder problems. Emphasis is placed...
Description
The most secure science, mathematics, hit the rocks of uncertainty in the 19th and 20th centuries. Trace the shocking discoveries of non-Euclidean geometries, Cantor’s paradoxes of infinite sets, and the incompleteness theorem of Kurt Godel. See how Alice in Wonderland sheds intriguing light on this new view of reality..
Description
Pound for pound, the supercell is the most powerful thunderstorm on Earth. Explore the mechanics of this system, which produces the strongest straight-line winds, the most violent tornadoes, and the largest hail. Close by looking at the formation of a record-breaking hailstone weighing almost two pounds!
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This program covers the important topic of transverse waves (part 1) in Physics. We begin by discussing how transverse waves arise in nature and conclude by learning in detail how to write down the mathematical representation of these waves. 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...
Description
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...
Description
This program covers the important topic of superposition and interference of waves in Physics. We begin by discussing two or more waves can interact by adding the amplitudes of the waves together. This is known as superposition of waves. 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...
Description
This program covers the important topic of latent heat and phase change in Physics. We begin by discussing the how adding or taking away energy from an object can cause it to change state between solid, liquid, and gas. 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...
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