Professor at University of Texas - Austin

Professor at University of Texas - Austin >

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The Strangest Force
Episode 1 of Black Holes, Tides, and Curved Spacetime
Begin your exploration of gravity with Isaac Newton and the famous story of the apple. Why was it such a breakthrough to connect a falling apple with the faraway moon? Review the essential characteristics of gravity and learn why small…
South America's Lost Cradle of Civilization
Episode 1 of Lost Worlds of South America Course
Consider the remarkable evidence for South America as one of the true wellsprings of human civilization. Grasp the diversity of early South American cultures, from the Andean civilizations to the desert and Amazon regions; what these cultures shared; and their…
Publius Cornelius Scipio
Part of the Series: Famous Romans
It is a March day in 218 B.C., the year that will see the beginning of the Second Punic War. Join the consul P. Cornelius Scipio and his son as they tour the Forum, discussing its statues of heroes from…
South America’s First People
Episode 3 of Lost Worlds of South America Course
The earliest evidence of humans in the Americas comes not from North America, but from Chile. Investigate the important Monte Verde site and its view into everyday life 15,000 years ago. Learn also about "Quilcas" cave art, the astonishing Chinchorro…
Discovering Peru’s Earliest Cities
Episode 2 of Lost Worlds of South America Course
The first cities in the Americas date to 3000 B.C. Investigate the means of subsistence of coastal and inland valley cities, and evidence for trade in marine and agricultural products. Learn about the sites of Kotosh, El Paraiso, and Caral…
Free Fall and Inertia
Episode 2 of Black Holes, Tides, and Curved Spacetime
Review three great discoveries by the "grandfather" of gravity research, Galileo Galilei. His most famous experiment may never have happened, but his principle of inertia, law of free fall, and principle of relativity are the basis for everything that comes…
Marcus Aurelius
Part of the Series: Famous Romans
With Marcus Aurelius, a Stoic wore the imperial purple. No emperor was more dedicated or humane. His "Meditations" remain a beacon for all who would go through life with honesty and compassion. But how did he fare as a ruler?
Machu Picchu and the Sacred Valley
Episode 22 of Lost Worlds of South America Course
The mountainside complex of Machu Picchu was a royal estate of Pachacuti, the 9th Inca. Walk the site, entering at the Sun Gate, and explore the causeways, terraces, and many rooms of undetermined function. Study the solar-aligned Torreon and other…
Epictetus
Part of the Series: Famous Romans
Born a slave, he was exiled from Rome for speaking too freely to the emperor. Despite offers to return, he lived on in a backwater, becoming one of the greatest exponents of that vastly influential approach to life known as…
The Inca Origins—Mythology v. Archaeology
Episode 17 of Lost Worlds of South America Course
Begin your study of the great Inca civilization by tracing the culture's origin myth, featuring a creator deity who made the cosmos and charged the Inca to found a kingdom in a fertile valley. Compare the mythology with archaeological evidence…
From Forces to Fields
Episode 13 of Black Holes, Tides, and Curved Spacetime
For the rest of the course, focus on the revolutionary view of gravitation launched by Albert Einstein. Review new ideas about fields that allowed physics to extend beyond Newtonian mechanics. Then see how Einstein modified Newton's laws and created the…
Paracas—Mummies, Shamans, and Severed Heads
Episode 7 of Lost Worlds of South America Course
Investigate the fascinating Paracas tombs of the 1st millennium B.C., which contain richly adorned mummies, and grasp the significance of mummification. Study the elaborate iconography of Paracas textiles, the meaning of the supernatural beings they depict, and the practice of…
The Moche—Drugs, Sex, Music, and Puppies
Episode 11 of Lost Worlds of South America Course
This episode investigates the dramatic iconography seen on Moche ceramics. First, learn about the complex rituals and practices of modern South American shamanism. Then study images on Moche pottery usually interpreted as depicting victory in war, and indications that they…
Cupisnique to Salinar—Elite Rulers and War
Episode 6 of Lost Worlds of South America Course
With the waning of Chavin's culture, striking new elements appear in the region's archaeological record. Here, encounter the Salinar culture, a new settlement pattern showing no ceremonial architecture and the first "elite" housing. Examine the evidence of defensive citadels and…
Revolution in the Heavens
Episode 3 of Black Holes, Tides, and Curved Spacetime
Drawing on ideas and observations of Nicolaus Copernicus and Tycho Brahe, Johannes Kepler achieved a great insight about gravity by discovering three laws of planetary motion, relating to the mathematics of orbits. The cause of planetary motion, he determined, must…
Chavín and the Rise of Religious Authority
Episode 5 of Lost Worlds of South America Course
The Peruvian site of Chavin marks the emergence of religion as the focus of public art. Study Chavin's distinctive architecture, with images of its characteristic "fanged deity." Learn about later religious iconography and artifacts at Chavin suggesting that it was…
The Art of Experiment
Episode 5 of Black Holes, Tides, and Curved Spacetime
Learn how distances in the solar system were first determined. Then chart Henry Cavendish's historic experiment that found the value of Newton's gravitational constant. Cavendish's work allows almost everything in the universe to be weighed. Then see a confirmation of…
The Moche—Pyramids, Gold, and Warriors
Episode 9 of Lost Worlds of South America Course
In the first of three episodes on the Andean Moche culture, chart this civilization's outstanding features. Discover the immense pyramids, adorned with brilliant color murals, road systems, and sophisticated art. Examine the evidence of extensive warfare, both in the art…
Universal Gravitation
Episode 4 of Black Holes, Tides, and Curved Spacetime
See how Newton was able to finish Kepler's revolution by formulating the law of universal gravitation, which says that every object exerts an attractive force on every other object. Also explore Newton's related discovery of the three laws of motion,…
The Nazca Lines and Underground Channels
Episode 8 of Lost Worlds of South America Course
The Nazca are yet another South American people of striking accomplishments. Learn about their remarkable irrigation system of underground aquifers, aqueducts, and wells, and their fine polychrome pottery and textiles. Penetrate the mystery of the "Nazca Lines," massive geoglyphs scratched…