102 results found for theory

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00:04:00

Wingtip Vortices

by Various
Wingtip Vortices
for 14-19 and upwards,
Highschool presentations | 14-19 and upwards | 4 years ago | 2 views
Rating:

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 now

00:01:00

Quantum Spin Hall effect in graphene

by José Luis Lado
Quantum Spin Hall effect in graphene
for All ages,
Arts presentations | All ages | 4 years ago | 3505 views
Rating:

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

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00:35:00

A Random Walk in Science

by Steven Chu
A Random Walk in Science
for 18-22 and upwards,
Lectures | 18-22 and upwards | 5 years ago | 1048 views
Rating:

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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00:37:00

Discovery of the Higgs Particle

by Martinus Veltman
Discovery of the Higgs Particle
for 18-22 and upwards,
Lectures | 18-22 and upwards | 5 years ago | 778 views
Rating:

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.

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00:33:00

The Origin of Elementary Particle Masses

by Francois Englert
The Origin of Elementary Particle Masses
for 18-22 and upwards,
Lectures | 18-22 and upwards | 5 years ago | 715 views
Rating:

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....

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00:39:00

Light Quanta and Their Idiosyncrasies

by Roy Glauber
Light Quanta and Their Idiosyncrasies
for 18-22 and upwards,
Lectures | 18-22 and upwards | 5 years ago | 958 views
Rating:

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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00:29:00

Electron Transfer Theory in Single Molecule Studies of Intermittent Fluorescence of Quantum Dots and in Initial Steps in Dye Sensitized Solar Cells

by Rudolph Marcus
Electron Transfer Theory in Single Molecule Studies of Intermittent Fluorescence of Quantum Dots and in Initial Steps in Dye Sensitized Solar Cells
for 18-22 and upwards,
Lectures | 18-22 and upwards | 5 years ago | 957 views
Rating:

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....

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00:05:00

What goes up must come down

by Various Presenters
What goes up must come down
for 14-19 and upwards,
Highschool presentations | 14-19 and upwards | 5 years ago | 1004 views
Rating:

A fascinating discussion between two humanoids about the mystery force of gravity.

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00:48:00

Density Functional Theory: three non-technical explanations

by Stefaan Cottenier
Density Functional Theory: three non-technical explanations
for 18-22 and upwards,
Lectures | 18-22 and upwards | 5 years ago | 1060 views
Rating:

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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00:09:00

Rubik’s Cube and Group Theory

by William Neary
Rubik’s Cube and Group Theory
for 18-22 and upwards,
Postgraduate presentations | 18-22 and upwards | 5 years ago | 2514 views
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00:06:00

Molecular Bilateral Symmetry of Natural Products: Prediction of Selectivity of Dimeric Molecules by Density Functional Theory and Semiempirical Calculations

by Brandon Fultz
Molecular Bilateral Symmetry of Natural Products: Prediction of Selectivity of Dimeric Molecules by Density Functional Theory and Semiempirical Calculations
for 18-22 and upwards,
Postgraduate presentations | 18-22 and upwards | 5 years ago | 755 views
Rating:

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00:05:00

Chirality and Group Theory

by Alyssa Rose
Chirality and Group Theory
for 18-22 and upwards,
Postgraduate presentations | 18-22 and upwards | 5 years ago | 906 views
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