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.
More details | Watch nowQuantum Spin Hall effect in graphene
The quantum spin Hall effect is a topological state of matter characterized by sustaining gapless chiral edge states together with an insulating bulk. This phase can be triggered out by applying strong magnetic fields in a graphene sample
More details | Watch nowA 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....
More details | Watch nowDiscovery of the Higgs Particle
Recently the Higgs particle has been discovered at CERN. This particle was theoretically predicted. The historical development of field theory, leading to this prediction will be discussed.
More details | Watch nowLight 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....
More details | Watch nowThe Origin of Elementary Particle Masses
In the beginning of the 60s, the laws of classical general relativity, Einstein's generalisation of Newtonian gravity, and of quantum electrodynamics, the quantum version of Maxwell's electromagnetic theory, were known. These laws describe long range....
More details | Watch nowElectron Transfer Theory in Single Molecule Studies of Intermittent Fluorescence of Quantum Dots and in Initial Steps in Dye Sensitized Solar Cells
Intermittently fluorescing single molecule systems are found in many materials, including semiconductor quantum dots (QD), dyes on crystalline or nanoparticle film surfaces, and biological systems. The QD's show a ~ -3/2 power law for the distributio....
More details | Watch nowWhat goes up must come down
A fascinating discussion between two humanoids about the mystery force of gravity.
More details | Watch nowDensity Functional Theory: three non-technical explanations
What do six brides have to do with Density-Functional Theory? Discover it in this lecture, in which the essential ideas behind DFT are explained in three different non-technical ways. After this practical lecture, you will be able to understand the m....
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