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00:33:00

Spontaneous Ionization to Subatomic Physics: Some Vignettes from Cosmic Ray History

by James Cronin
Spontaneous Ionization to Subatomic Physics: Some Vignettes from Cosmic Ray History
for 18-22 and upwards,
Lectures | 18-22 and upwards | 6 years ago | 749 views
Rating:

In 1879 Crookes discovered that air seemed to ionize spontaneously.  With the discovery in 1896 of radioactivity by Henri Becquerel it appeared that the mystery was solved.  However a number of physicists sought a quantitative agreement between the....

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00:34:00

The Quantum Mechanics of Light: Interference, Entanglement – and Ghosts

by Roy Glauber
The Quantum Mechanics of Light: Interference, Entanglement – and Ghosts
for 18-22 and upwards,
Lectures | 18-22 and upwards | 6 years ago | 1043 views
Rating:

The early days of the quantum theory presented many dilemmas connected with interference phenomena and what we have come to call the entanglement of states. We are much better able to deal with these problems now, both in theory and experiment, but t....

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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 | 6 years ago | 859 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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00:31:00

Laser Spectroscopy of Hydrogen

by Theodor Hänsch
Laser Spectroscopy of Hydrogen
for 18-22 and upwards,
Lectures | 18-22 and upwards | 6 years ago | 1040 views
Rating:

The simple Balmer spectrum of atomic hydrogen has provided the Rosetta stone for deciphering the strange laws of quantum physics during the early 20th century.  Four decades ago, Doppler-free laser spectroscopy opened a new chapter in the exploratio....

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00:33:00

A Century of Quantum Mechanics

by David Gross
A Century of Quantum Mechanics
for 18-22 and upwards,
Lectures | 18-22 and upwards | 6 years ago | 1474 views
Rating:

In October 2011 we celebrated the centenary of the Solvay conferences that played a unique and important role in the development of twentieth century physics, most notably in the quantum revolution whose birth overlapped the initiation of these meeti....

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00:30:00

The Real M-Theory

by Brian Josephson
The Real M-Theory
for 18-22 and upwards,
Lectures | 18-22 and upwards | 6 years ago | 815 views
Rating:

How can one advance a working hypothesis that will not be wrong tomorrow and ridiculous the day after? Beyond the Standard Model we find uncertainty and confusion, with both unclarity as to which might be the correct theory, as well as little in the ....

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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 | 6 years ago | 1084 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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00:31:00

Neutrinos: a Golden Field for Astroparticle Physics

by Carlo Rubbia
Neutrinos: a Golden Field for Astroparticle Physics
for 18-22 and upwards,
Lectures | 18-22 and upwards | 6 years ago | 807 views
Rating:

Neutrinos have been the origin of an impressive number of ‘surprises’.  We know that neutrinos have tiny masses and that oscillations are occurring spontaneously between neutrino species.  But additional new discoveries may be ahead of us and t....

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00:34:00

The LHC at CERN and the Higgs

by Martinus Veltman
The LHC at CERN and the Higgs
for 18-22 and upwards,
Lectures | 18-22 and upwards | 6 years ago | 961 views
Rating:

The strong interactions, the forces responsible for the interactions between quarks and notably supposedly responsible for quark confinement, profited from the development of gauge theories.  In the wake of the gauge theory of weak interactions also....

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00:07:00

What is Color?

by Daniel Stribling
What is Color?
for 11-14 and upwards,
Teaching modules | 11-14 and upwards | 7 years ago | 1454 views
Rating:

FSU undergrad, Daniel Stribling, investigates the intimate relationship between light and color. Daniel discusses the history, physics, and theory of light to engage young learners and encourage them to be excited about science.

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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 | 7 years ago | 1667 views
Rating:

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00:08:00

Longboard data analysis

by Jonathan Hare
Longboard data analysis
for 14-19 and upwards,
Lectures | 14-19 and upwards | 7 years ago | 1414 views
Rating:

Using a data-logger to analyse the performance of a longboard.

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00:04:00

Longboard physics

by Jonathan Hare
Longboard physics
for 14-19 and upwards,
Lectures | 14-19 and upwards | 7 years ago | 6322 views
Rating:

A few (surprising?) thoughts on how the wheels on a longboard or skateboard actually move.

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00:07:00

The Longboard – speedometer

by Jonathan Hare
The Longboard – speedometer
for 14-19 and upwards,
Lectures | 14-19 and upwards | 7 years ago | 1505 views
Rating:

Jonathan describes his adventures with a longboard and some different methods of making a speedometer for it.

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00:03:00

Resonance and Bridges

by Abigail Pearson
Resonance and Bridges
for 14-19 and upwards,
Highschool presentations | 14-19 and upwards | 7 years ago | 2794 views
Rating:

Abbie describes why bridges must be designed to counteract the effects of unwanted vibrations.

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00:06:00

Concert Hall Acoustics

by Various Presenters
Concert Hall Acoustics
for 14-19 and upwards,
Highschool presentations | 14-19 and upwards | 7 years ago | 1383 views
Rating:

Physics' students Rosie & Carine explain the physics behind concert hall acoustics.

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00:05:00

Wave Power

by Jonathan Hare
Wave Power
for 11-14 and upwards,
Lectures | 11-14 and upwards | 7 years ago | 1200 views
Rating:

The UK coast is constantly being bombarded by sea waves.  There is a massive amount of power available from these waves.  Jonathan describes three different ways of generating electrical power from water waves.

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00:03:00

How does a transistor work?

by Jonathan Hare
How does a transistor work?
for 11-14 and upwards,
Lectures | 11-14 and upwards | 7 years ago | 1852 views
Rating:

A short video explaining how transistors work.  At the heart of our high-tech society with radios, mobile phones, computers and space exploration are tiny electronic components called transistors.  They have revolutionised electronics and in the pr....

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00:06:00

Solar Cells

by Jonathan Hare
Solar Cells
for 11-14 and upwards,
Lectures | 11-14 and upwards | 7 years ago | 5497 views
Rating:

A short video on solar cells explaining with accompanying information sheet. How they work and how Jonathan uses solar power at home.

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00:06:00

Simple Electrical Generator

by Jonathan Hare
Simple Electrical Generator
for 11-14 and upwards,
Lectures | 11-14 and upwards | 7 years ago | 1139 views
Rating:

With some simple circuitry and a homemade hand powered generator Jonathan makes AC and DC electricity that could be used for charging a mobile phone or attaching to a wind turbine.

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00:09:00

Paper Windmills

by Jonathan Hare
Paper Windmills
for 11-14 and upwards,
Lectures | 11-14 and upwards | 7 years ago | 2832 views
Rating:

Jonathan makes some simple paper windmills/turbines and experiments with a simple generator to power house hold devices such as torches, calculators and even a radio.

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00:04:00

Mobile Phone

by Jonathan Hare
Mobile Phone
for 11-14 and upwards,
Lectures | 11-14 and upwards | 7 years ago | 1325 views
Rating:

Jonathan shows us with a cheap and simple homemade demonstration how your mobile telephone generates radio waves in order for you to use it to communicate.  As you will see you can use this method to explore many aspects of your mobile phone!

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00:04:00

Electrical Generator

by Jonathan Hare
Electrical Generator
for 11-14 and upwards,
Lectures | 11-14 and upwards | 7 years ago | 1107 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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00:05:00

The Fresnel Lens

by Jonathan Hare
The Fresnel Lens
for 14-19 and upwards,
Lectures | 14-19 and upwards | 7 years ago | 983 views
Rating:

Early lighthouses used coil and wood fires before moving on to gas and then electricity powered lights.  Massive improvements took place by using a lens system around the light.  The development of the Fresnel lens brought what we now regard as the....

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