212 results found for physics

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00:13:00

Cosmic X-ray sources

by Riccardo Giacconi
Cosmic X-ray sources
for 14-19 and upwards,
Interviews | 14-19 and upwards | 15 years ago | 6302 views
Rating:

Riccardo Giacconi , USA was awarded half of the Nobel Prize for Physics in 2002 for 'for pioneering contributions to astrophysics, which have led to the discovery of cosmic X-ray sources.

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00:11:00

Crater Formation in Sand

by Colin Byfleet
Crater Formation in Sand
for 11-14 and upwards,
Teaching modules | 11-14 and upwards | 16 years ago | 4401 views
Rating:

A description and demonstration of the way in which craters formed by dropping objects into sand can be linked to some elementary physics

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00:31:00

Creating Artificial Magnetic Fields to Act on Neutral Atoms

by William Phillips
Creating Artificial Magnetic Fields to Act on Neutral Atoms
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1557 views
Rating:

Cold, quantum degenerate gases of neutral atoms have proved to be useful in simulating the behavior of quantum systems like electrons in solids.  For example, cold atoms moving in optical lattices (periodic potentials created by interfering laser be....

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Dark Matter, Dark Energy

by George Smoot
Dark Matter, Dark Energy
for 14-19 and upwards,
Lectures | 14-19 and upwards | 14 years ago | 2843 views
Rating:

Smoot's Nobel Prize was awarded for his analysis of that whisper from the Big Bang, the cosmic microwave background radiation. Today he hopes CERN's data will again transform our understanding of the universe. Young scientists Bilge Demirkoz and Benj....

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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 | 8 years ago | 1807 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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00:10:00

Determining the Crystallographic polarity of the wurtzite structure non-destructively

by Jesse Williams
Determining the Crystallographic polarity of the wurtzite structure non-destructively
for 22 and upwards,
Postgraduate presentations | 22 and upwards | 10 years ago | 2187 views
Rating:

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00:07:00

Diffraction and Fourier Transforms

by Tega Edo
Diffraction and Fourier Transforms
for 14-19 and upwards,
Lectures | 14-19 and upwards | 14 years ago | 1818 views
Rating:

How we are affected by the very widespread manifesations of diffraction.

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00:06:00

Direct Cluster Nuclear Transfer Reactions

by Amy Crisp
Direct Cluster Nuclear Transfer Reactions
for 22 and upwards,
Postgraduate presentations | 22 and upwards | 16 years ago | 1384 views
Rating:

Studies of direct cluster nuclear transfer reactions to give information about angular momentum values in excited states of nuclei.

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00:29:00

Discovery of Superconducting Tunneling

by Ivar Giaver
Discovery of Superconducting Tunneling
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1687 views
Rating:

I had the great fortune to receive a Nobel Prize in Physics for using electron tunneling to measure the energy gap in superconductors. In this talk I will recollect some of the events that led to this discovery and hopefully I will be able to convey....

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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 | 8 years ago | 1476 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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00:02:00

Dry Ice and Wet Ice

by John Murrell
Dry Ice and Wet Ice
for 14-19 and upwards,
Lectures | 14-19 and upwards | 15 years ago | 3483 views
Rating:

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00:56:00

Einstein’s legacy as scientist and icon

by Martin Rees
Einstein’s legacy as scientist and icon
for 18-22 and upwards,
Lectures | 18-22 and upwards | 14 years ago | 1290 views
Rating:

What might 'new Einsteins' achieve in the 21st century? Science offers more intellectual challenges than ever, but is a less individualistic enterprise. Technology offers imense opportunities, but poses threats and ethical dilemmas. Can scientists re....

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00:02:00

Electrical Conduction

by John Murrell
Electrical Conduction
for 14-19 and upwards,
Lectures | 14-19 and upwards | 15 years ago | 1880 views
Rating:

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00:04:00

Electrical Generator

by Jonathan Hare
Electrical Generator
for 11-14 and upwards,
Lectures | 11-14 and upwards | 10 years ago | 1586 views
Rating:

This short video shows one of the demonstrations for the Physics SEPNet exhibition - "Who will keep the lights on?" which travelled around the southern UK from February 2009.  We describe and explain the electrical generator demonstration which Jona....

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00:59:00

Electron Waves Unveil The Microcosmos

by Akira Tonomura
Electron Waves Unveil The Microcosmos
for 18-22 and upwards,
Lectures | 18-22 and upwards | 15 years ago | 1734 views
Rating:

Since the time of Faraday lines of force in space have been 'observed' by sprinkling iron filings around magnet. The lecturer explains how, with modern techniques we can 'see' lines of force inside a solid magnet. The studies reveal a fascinating dyn....

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00:10:00

Energy and power

by Joe Wolfe
Energy and power
for 14-19 and upwards,
Lectures | 14-19 and upwards | 14 years ago | 1451 views
Rating:

The total work done on an object equals the increase in its kinetic energy. For conservative forces, we can define potential energy.

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01:16:00

Every picture tells a story

by John Barrow
Every picture tells a story
for 18-22 and upwards,
Lectures | 18-22 and upwards | 14 years ago | 1373 views
Rating:

We will look at the role of pictures and images in the development of science. From the first graphs and illustrated books to Molscript, the influence of the first pictures of spiral galaxies on Van Gogh's 'Starry Night', to the artistic resonances o....

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00:06:00

Fibre and Sunlight

by John Hall
Fibre and Sunlight
for 14-19 and upwards,
Lectures | 14-19 and upwards | 14 years ago | 1648 views
Rating:

Fine tuning the frequencies of light gave John Hall a Nobel Prize, and helped transform the fields of precision measurement and information transmission. Iris Choi and Andrei Ghicov are young scientists excited by the ways physics can change our worl....

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00:31:00

Five Decades of Lasers, Six Decades of Progress, and a Proposed Space Experiment to test Einstein’s Assumptions

by John Hall
Five Decades of Lasers, Six Decades of Progress, and a Proposed Space Experiment to test Einstein’s Assumptions
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1310 views
Rating:

Even though this is the 51st year of the Laser, progress in its control and application in precision measurements is still accelerating.  The Optical Frequency Comb technology exploded in 1999-2000 from the synthesis of advances in independent field....

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00:05:00

Flexibility, Elasticity, Heat Conduction

by John Murrell
Flexibility, Elasticity, Heat Conduction
for 14-19 and upwards,
Lectures | 14-19 and upwards | 15 years ago | 2296 views
Rating:

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00:21:00

Force or (potential) energy

by Slobodan Danko Bosanac
Force or (potential) energy
for 18-22 and upwards,
Lectures | 18-22 and upwards | 11 years ago | 1661 views
Rating:

Classical dynamics uses the concept of force for its solution. On the other hand force in quantum dynamics has no meaning and the concept of potential energy is used instead. The question is, "which one of the concepts is more fundamental?".

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00:31:00

From Millisecond to Attosecond Laser Pulses

by Nicolaas Bloembergen
From Millisecond to Attosecond Laser Pulses
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1527 views
Rating:

A historical overview is presented of the experimental development of ever shorter laser pulses from 1960 to the present. Already in the early sixties nanosecond pulses were achieved and the entry into the picosecond domain was reached in the late s....

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00:34:00

From Spinwaves to Giant Magnetoresistance (GMR) and Beyond

by Peter GrŸnberg
From Spinwaves to Giant Magnetoresistance (GMR) and Beyond
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1389 views
Rating:

Standing spinwaves and surface waves in layered magnetic structures can be used for the detection and quantitative evaluation of interlayer exchange coupling (IEC). Using this method antiferromagnetic IEC has been found in Fe/Cr/Fe layered structure....

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00:34:00

Frontiers of Physics

by David Gross
Frontiers of Physics
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1544 views
Rating:

David discusses a few of the questions facing fundamental physics that might be answered before the 100th Lindau meeting in 2050.

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