00:04:00
Wingtip Vortices
A very well-explained description of the theory of lift and of how the energy-sapping wingtip vortices are created in aircraft flight. This talk was the runner-up in the 2016 Kroto Prize for Innovative Use of Technology in Science Learning.
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00:31:00
The Origins of Cellular Life
The complexity of modern biological life has long made it difficult to understand how life could emerge spontaneously from the chemistry of the early earth. We are attempting to synthesize simple artificial cells in order to discover plausible pathwa....
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00:33:00
The State of the Universe
Our Universe was created in 'The Big Bang' and has been expanding ever since. Brian Schmidt describe the vital statistics of the Universe, including its size, weight, shape, age, and composition. He also tries to make sense of the Universe's past, pr....
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00:30:00
Global Warming Revisited
Because of the following statement from the American Physical Society: “The evidence is incontrovertible: Global warming is occurring. If no mitigating actions are taken, significant disruptions in the Earth's physical and ecological systems, s....
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00:35:00
A Random Walk in Science
I will discuss my random walk in science, from my graduate student on postdoctoral years testing the Weinberg-Salam-Glashow theory of electro-weak forces, and then to energy transfer in condensed matter systems, the spectroscopy of positronium, laser....
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00:30:00
Gamma Ray Bursts: Windows on the Universe
Gamma-Ray Bursts are the most powerful explosions in the universe. They happen about once per day in the visible universe. Their fantastic engines pump out as much energy in a matter of seconds as all the stars in a galaxy do in a billion years. This....
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00:39:00
Light Quanta and Their Idiosyncrasies
Maxwell's electromagnetic theory (now 150 years old) seemed in its comprehensive way to be capable of answering all of the questions one might ever pose about the theory of light. But that spell was broken in 1900 by Planck's discovery that light bea....
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00:33:00
What We Learn When We Learn that the Universe is Accelerating
The 1998 discovery that the universe's expansion is accelerating was not only unexpected, but it also led to the postulation of a previously-unknown 'dark energy' forming almost three-quarters of the "stuff" of the universe. How was this discovery ma....
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00:05:00
Coordination Polymers 3. Studying Coordination Polymer Formation
Exploiting the unique properties of coordination polymers requires full understanding of their formation. Here we look at how in-situ x-ray diffraction helps to uncover some of the details.
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00:05:00
