Today’s Gadgets and Tomorrow’s Energy: John Bardeen’s Nobel Prizes

Daniel Agterberg — Through interactive demonstrations and examples, we unravel the ideas that lead to John Bardeen’s remarkable discoveries for which he won two Nobel Prizes: the transistor and the explanation of superconductivity. The first created the modern day electronics …

Glowing Eyes and Personal Halos: Seeing the Light

Robert Greenler — The “red-eye effect,” halos from antiquity to modern times, the courting ritual of the woodcock, aerial views of Stonehenge — “a whole bunch of things, many of which can be explained by a similar effect” — work …

Space, Time, Einstein, and Spacetime

Beginning with the flat earth of Ancient Egypt, where tax collectors developed the principles of geometry, John L. Friedman moves through the centuries to show us how science has effected our understanding of concepts such as up or down, of …

Beetles, Bubbles, and Butterflies: The Origins of Iridescence

Robert Greenler — Change the angle and a drab butterfly displays a wash of brilliant blue; the vibrant green of a beetle turns a rich blue; and the intense red of the ruby-throated humming disappears. Almost like magic, in this …

Medical Imaging: Getting Under Your Skin

Sound, motion, and a bit of fury pulse through this dynamic investigation into several imaging techniques used to examine the human body. Physicist Paul Lyman immediately captures the attention of his audience with his entrance, bumping down the long flight …

Early Optics and the Painters’ Art

Science and art, fascination and controversy, all meet in this exploration by physicist Robert Greenler of optical devices and techniques possibly used in the painting of many of the masterpieces of Western Art. Did artists, beginning in the early 1400s, …

NASA Shuttle Launch: Dark-Moon-Ray Mystery

Sky effects and the solution of a mystery intertwine in this fascinating look at a photograph of the successful launch of space shuttle Atlantis on February 7, 2001. “What’s going on here?” the Boston Globe science writer asked physicist Robert …

Rainbows, Visible and Invisible

The excitement of discovery, whether of something already known and experienced many times or of finding something for the first time ever in all of history, run throughout “Rainbows, Visible and Invisible.” Physicist Robert Greenler works with both pure science …

Why Does a Spinning Top Stop?

“I suspect a top is one of those things that wants to be invented,” Physicist Robert Greenler suggests as he spins fruits and vegetables — nuts, a strawberry with a twig stuck through it, a lemon, an apple on a …

No Exit! Black Holes, Neutron Stars, and Gravitational Collapse

The sun, moon, and stars are brought to earth in vivid action in this look at the physics of our universe. Professor John Friedman, a world-recognized expert in relativistic astrophysics and quantum gravity, takes the highly complex — the speed …

Urban Air: What’s in There?

The “mystery” of urban air is stripped away in this lively video. With clarity and delight, chemistry professor Thomas Holme looks at each of the components of air — nitrogen, oxygen, water, argon, and “other” — and demonstrates how, and …

Life’s Matrix: A Biology of Water Chemistry

From the nucleus of an atom to the sub-surface of Mars, this engrossing video takes a journey into water, a commonplace substance, but also “extremely profound,” says chemistry professor Michael Reddy. He starts this journey with “foreign language” lessons in the vocabulary of chemistry. Initially he works with the basic components of an atom, the proceeds to the structure of hydrogen, of oxygen, and of their combined state as a water molecule.

Ancient Arrowheads, Roman Baseball Cards, and Optical Fibers: The Many Uses of Glass

“Don’t try this at home,” warns Robert Ponton as he chews up his drinking glasss to emphasize his point that glass is completely recyclable. He then goes on to share the secret of “glass” used in the movies (sugar and Karo syrup) as well as to survey the history of real glass, from the ancient use of obsidian for tools and weapons up to the fiber optics that “make our computers talk to each other.”

The Prevailing Westerlies, The Horse Latitudes, and Doldrums: Global Air Circulation

The understanding of complex things… from simple to basic ideas is the goal Professor Greenler sets forth at the onset of this “glimpse into a process of science.” The stated subject is big-scale air circulation patterns around the earth, the hows and whys of the bands of alternating winds circling the globe, as well as a sense of their geographical and human impact, from the location of rainforests and deserts to Columbus’ discovery of the New World. But the main focus is on four ideas concerning the effects of temperature and of the earth’s rotation on air masses, and then on how these principles combine to yield further understanding.

The Mirage, The Discovery of Greenland, and The Green Flash

Fun-house mirrors (ice) castles in the air, the Biblical parting of the Red Sea, a desert Oasis and a Jules Verne novel all work together to explore the mystery of mirages, and quite likely send viewers in search of one. In “The Mirage, the Discovery of Greenland, and the Green Flash,” physicist Robert Greenler uses a lively and entertaining mixture of diagrams, pictures, and demonstrations to explain the how and why of a natural phenomenon that has intrigued and influenced humans throughout time.

Sunlight and Ice Crystals in the Skies of Antarctica

What does the well-dressed scientist wear in Antarctica? (Many layers.) How does that researcher live in an environment where ice and air are the only naturally occurring building materials? (With much logistical support.) Why conduct research at the end of the world? (Best sky effects in the world, and a fascinating place.) In answering these and many more questions, physicist Robert Greenler draws on two research seasons in Antarctica, in 1977 and, 21 years later, in 1997-98.

Red Sunsets, Black Clouds and The Blue Moon: Light Scattering in the Atmosphere

Robert Greenler — Light waves and particles in the atmosphere produce blue skies, red sunsets, white and black clouds, and the rare blue moon. An understanding of the physical origins of such processes, claims physicist Robert Greenler, enhances a person’s sense of awe and appreciation, giving fresh eyes with which to see and enjoy the familiar. With this goal in mind, he combines a delightful mix — of poetry, lasers, diagrams, photographs, shades of white/ gray, and ingenious but simple demonstrations — to explain and show how light waves are scattered in the atmosphere.

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