even more physics videos and video

Even more physics videos and video lectures!

I am very sorry but I have not yet finished my new Free Science Online

website.

I already registered a domain (free-science-online.com) but I have not

yet published the site.

As soon as I have published my new website I will create a post with

huge red letters here!

Here are more physics videos. I hope you like them.

First, the video interview with the great physicist

Richard P. Feynman.

Pleasure of Finding Things Out

* Video interview at Google Video

Amazingly great video lecture! This is pure Richard Feynman. I have

watched it 4 times during last two years. Each time watching it I

always find something new I had not noticed before!

The Douglas Robb Memorial Lectures by Richard P. Feynman

* Lecture 1: Photons - Corpuscles of Light

A gentle lead-in to the subject, Feynman starts by discussing

photons and their properties.

Provided by The Vega Science Trust.

* Lecture 2: Fits of Reflection and Transmission - Quantum Behaviour

What are reflection and transmission, and how do they work?

Provided by The Vega Science Trust.

* Lecture 3: Electrons and their Interaction

Feynman diagrams and the intricacies of particle interaction

Provided by The Vega Science Trust.

* Lecture 4: New Queries

What does it mean and where is it all leading?

Provided by The Vega Science Trust.

* Website

A set of four priceless archival recordings from the University of

Auckland (New Zealand) of the outstanding Nobel prize-winning

physicist Richard Feynman - arguably the greatest science lecturer

ever. Although the recording is of modest technical quality the

exceptional personal style and unique delivery shine through.

Feynman gives us not just a lesson in basic physics but also a deep

insight into the scientific mind of a 20th century genius analyzing

the approach of the 17th century genius Newton.

For the young scientist, brought up in this age of hi-tech PC / Power

Point-based presentations, we also get an object lesson in how to give

a lecture with nothing other than a piece of chalk and a blackboard.

Furthermore we are shown how to respond with wit and panache to the

technical mishaps that are part-and-parcel of the lecturer's life.

Two minute excerpt from Richard P. Feynman's Lecture on why the nature

is symmetric

* Audio fragment at YouTube

Richard Feynman, towards the end of a Caltech lecture to

undergraduates on symmetry in physical laws, discusses Nature's

near-symmetry (as in parity non-conservation) and the Yomeimon in

Nikko, Japan. Illustrated after the fact with still images of the

Yomeimon. Of the four pillars at the front of the gate, the pillar

with the inverted motif (sakakibashira) is the third from the left, as

shown.

Two minute video capture of the most famous physicists at Solvay

Conference (1927):

(Ervin Schr�dinger, Niels Bohr, Werner Heisenberg, Paul Dirac, Max

Born, Wolfgang Pauli, Louis de Broglie, Marie Curie, Hendrik Lorentz,

Albert Einstein and others)

* Video fragment in Flash format

* Video fragment in RealPlayer format

* Photo of all the participants of Solvay Conference

This is something great! Two minutes of the most famous physicists.

See them alive!

Devote two minutes of your time to watch this!

Twenty-nine physicists, the main quantum theorists of the day, came

together to discuss the topic "Electrons and Photons". Seventeen of

the 29 attendees were or became Nobel Prize winners.

Following is a "home movie" shot by Irving Langmuir, (the 1932 Nobel

Prize winner in chemistry). It captures 2 minutes of an intermission

in the proceedings. Twenty-one of the 29 attendees are on the film.

The film opens with quick shots of Erwin Schr�dinger and Niels Bohr.

Auguste Piccard of the University of Brussels follows and then the

camera re-focuses on Schr�dinger and Bohr.

Collection of Audio Lectures in Physics:

* Link to Audio Lectures

Lectures provided:

* Los Alamos from Below (speech by Richard P. Feynman himself!!!)

* Einstein's Relativity and the Quantum Revolution

* Greatest Minds and Ideas of All Time

* Hawking's Black Holes

* Complexity and Chaos

* Universe in a Nutshell (Stephen Hawking)

Black holes, Wormholes and Time Travel

* Lecture by Paul Davies (Imperial University)

The idea of time travel makes great science fiction, but can it really

be achieved? Paul Davies, Visiting Professor of Physics at Imperial

College, describes wormholes in space and other ways that might allow

travel into the past or future.

Provided by The Vega Science Trust.

Life in Space

* Lecture by Helen Sharman

Helen Sharman, the UK's first astronaut, gives a vibrant account of

her personal experience of life in space using models and film to

illustrate the key scientific concepts involved in spaceflight.

Among other things she discusses the way Newton's Third Law and

convection apply to space flight, weightlessness and survival. She

answers numerous questions from an audience of young school children

(9-12 yrs).

Provided by The Vega Science Trust.

States of Matter

* Lecture by John Murrell (University of Sussex)

John Murrell discusses the basic physical principles relating to the

gaseous, liquid and solid states with the aid of models and

demonstrations. Attention is drawn to phase changes and subtle

features involving intermediate phases such as liquid crystals,

supercritical fluids and pseudosolids. These aspects are developed

further in interactive discussions.

Provided by The Vega Science Trust.

The Chemistry of Interstellar Space

* Lecture by William Klemperer (Harward University)

Radioastronomical observations of our galaxy have revealed hordes of

molecules in the interstellar medium. Extremely fast reactions result

in the high abundance of complex organic compounds in the space

between the stars. Amazingly, the key to all this is the chemistry of

the helium ion!

Provided by The Vega Science Trust.

Radioastronomical observation of the galaxy has revealed a broad

distribution of molecular species within the cool, low density regions

between stars. Since it is only possible to observe polar molecular

forms through their rotational motions, our direct knowledge of

abundances of the molecular components is somewhat limited. To gain a

deeper insight into the likely molecular composition of the

interstellar medium, models of chemical synthesis appropriate for the

cold, low density conditions are required.

Consideration of observed species shows clearly that equilibrium

thermodynamic constraints are inappropriate, since in some instances

high energy isomeric forms of species are quite abundant. Furthermore

quite specific forms of relatively large polyatomic species are

observed. In particular, the larger organic species are very

unsaturated rather than saturated, as might be expected from the fact

that hydrogen is by far the most abundant interstallar molecular

species. The modelling of the kinetics of specific condensation from

an atomic initial condition is representative of a problem of general

occurance. The chemistry of the interstellar medium illustrates that

complex synthesis occurs under totally abiotic conditions. The

specific reactions that occur in the dark polyatomic interstellar

regions are discussed in terms of cosmic ray induced primary

ionisation followed by specific secondary ion molecule reactions. We

show that the high abundance of complex carbon compounds is due to the

chemistry of the helium ions.

Provided by The Vega Science Trust.

Electron Waves Unveil the Microcosmos

* Lecture by Akira Tonomura

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 dynamic world in which lines

of force form vortices (quantised bundles) that hop and swirl inside a

superconductor (much like tornadoes do in the atmosphere).

You can use a microscope to see the cell structure of a leaf. Optical

microscopes employ waves of visible light. To see smaller objects such

as viruses and irregularities in the atomic arrangement of crystals,

however, you have to use electron waves. Why? Because wavelengths of

visible light are too large to probe such small sizes. Are electrons

waves? Yes, they can behave like waves, which are trains of crests and

troughs just like the ripples on the surface of water. Using the

electron microscope, we can see the crest height and the trough depth

of the electron waves after they are disturbed from passing by the

objects being examined. However, there are some objects that do not

affect the height or depth of the waves, but pull back (or push

forward) the crests and troughs. This can be observed by superposing

two waves, one pulled back and the other unaffected, and letting them

interfere. The electron waves will interfere constructively if the

crests overlap, and destructively if the crests meet the troughs. This

is the principle of holography, which the lecturer explains in detail

during the discourse. Then, you will be able to understand the

fascinating sceneries in the microcosmos that electron holography has

unveiled, such as the quantised bundles of magnetic lines of force in

a superconductor, and how they dance and hop!

Provided by The Vega Science Trust.

Tick, Tick Pulsating Star: How we wonder what you are

* Lecture by Jocelyn Bell Burnell (Open University)

The discovery of pulsars, neutron stars which form when massive stars

explode (supernovae), took astronomers by surprise. Their discovery is

described and the way in which these bizarre objects have led to an

understanding of matter under extreme conditions.

Provided by The Vega Science Trust.

Nanotubes: The Materials of the 21st Century

* Lecture by Sumio Iijima

Carbon nanotubes, some 1000 times smaller than conventional carbon

fibers, have tensile strengths 100x that of steel and conduct

electricity like metals. They promise a revolution in structural and

electrical engineering.

Provided by The Vega Science Trust.

Science and Fine Art

* Lecture by David Bomford

There is a long tradition of applying scientific techniques to the

study of works of art. The discourse reviews past and present

approaches and shows that these advances have not only illuminated art

history but also revolutionised our conservation techniques, ensuring

the survival of works of art for the future.

Provided by The Vega Science Trust.

Electricity, Magnetism and the Body

* Lecture by Anthony Barker (Sussex University)

The controlled ways that electricity and magnetism can stimulate the

body are demonstrated and how the resulting responses can aid

diagnosis discussed.

Provided by The Vega Science Trust.

How X-rays cracked the structure of DNA

* Lecture by Amand Lucas (University of Namur)

An elegantly simple optical diffraction demonstration with an

inexpensive laser pointer is used to show the way in which x-rays can

reveal the structure of crystals, and in particular, the double helix

structure of DNA.

Provided by The Vega Science Trust.

How to Make Teaching Come Alive

* Lecture by Walter Lewin (MIT)

* Website

The Council on Primary and Secondary Education 2002 summer program

hosted 70 pre-college teachers at MIT to attend MIT Physics Professor

Walter Lewin's inspired talk about physics. The teachers came from 15

US states and seven countries including Argentina, Austria, Hong Kong,

Israel, Lebanon, Norway, and West Indies.

This lecture has been described as one that can make you "see" a

rainbow in ways you have never seen it before, and provides answers to

questions like "why is the sky blue"?.

During the live lecture, many of the colors discussed were visible as

described. However since this lecture was video taped and then

compressed in order to create video streams, many of the colors did

not survive the compression process. In the lecture hall, viewers did

indeed see all of the colors of the rainbow, however once the video is

streamed, you will see mostly red and blue. At 14:02, during the

rotating disc demonstration, the black and white lines appear brown on

the inside and dark blue on the outside, and when reversed, appear

dark blue on the inside and brown on the outside. Professor Lewin is

introduced by Professor Ron Latanision, Chairman of the Council on

Primary and Secondary Education, and Professor of Materials Science

and Engineering and Professor of Nuclear Engineering at MIT.

Polarization: Light Waves, Rainbows, and Cheap Sunglasses

* Lecture by Walter Lewin (MIT)

* Website

In this lecture taped before a live audience of elementary and middle

school students and their families, MIT Physics Professor Walter Lewin

explains polarization, and demonstrates properties of light in

rainbows, smoke and the sky. He answers the perennial question, "why

is the sky blue?" and creates a red sunset in the laboratory.

NOTES ON THE VIDEO (Time Index):

Demonstrations:

Polarization: 35:20

Rainbows: 59:38

Blue Smoke: 1:09:30

Red Sunset: 1:22:13

The Birth and Death of Stars

* Lecture by Walter Lewin (MIT)

* Website

We know that some stars exist because we can see them with our own

eyes. In this lecture Walter Lewin provides illuminating evidence of

stars we cannot see. He describes the birth of stars, in the arms of a

nebula, to their explosive or implosive ends. There are super hot

white dwarves, detectible only by measuring the shift in color as

light leaves them. As some massive stars age, they collapse into

incredibly dense neutron stars--1000 times smaller than white

dwarves--that release more x-rays than light. One teaspoon of neutron

star matter would weight 500 million tons. Lewin champions Jocelyn

Bell, who discovered evidence for these stars in 1967 but was

overlooked for the Nobel Prize. When Bell's radio telescope picked up

mysterious signals pulsing every 1.3 seconds, her lab described the

phenomenon as "little green men," at first unsure if these might be

signs of intelligent alien life. In his ringing finale, Lewin pulls

out a tuning fork to demonstrate the Doppler Effect, where the pitch

of a sound changes as it moves. Astronomers measured an analogous

Doppler shift in star light to prove the existence of black holes.

The Sounds of Music

* Lecture by Walter Lewin (MIT)

* Website

Have you ever wondered about the annoying hum your car makes at a

certain speed on a particular stretch of highway? Or why a flute's

notes are higher than a trombone's? Walter Lewin uses rubber hose,

wooden boxes with holes, metal plates and an assortment of other

home-made instruments to demonstrate how objects produce sound. It all

boils down to how something vibrates -- pushing air out in all

directions.

Lewin illustrates the shape of sounds, taking a rope tethered at one

end, shaking it up and down at different speeds and producing specific

wave shapes. These shapes are the rope's resonant frequencies, or

harmonics. It's the same for a bowed violin, where the oscillations of

the strings generate a set of harmonics, producing the notes we hear

-- the faster the oscillations, the higher the tones. Lewin invites

children from the audience to produce sounds with their musical

instruments, and shows the amplitude and frequency of the tones. Later

he demonstrates destructive resonances: video of a bridge that twists

so violently that it collapses, and then, live in the laboratory, the

shattering of a wine glass with progressively louder and higher tones.

In this event where physics meets performance art, Lewin provides

surprises throughout.

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physics, electricity and magnetism, vibrations and waves, symmetry

and tensors)

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(Includes physics for non-science majors, mechanical universe

lecture series, elementary college physics, and astrophysics)

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(Includes 3 hour video series of The Elegant Universe - the theory

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various lectures from princeton university on black holes and

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