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simple-harmonic-motion 00:08:00

Simple harmonic motion

by Joe Wolfe
Simple harmonic motion
for 14-19 and upwards,
Lectures | 14-19 and upwards | 10 years ago | 793 views
Rating:

In simple harmonic motion, displacement, velocity and acceleration vary sinusoidally with time, but with different phases.

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Single Molecule Studies of Initial Steps in Dye Sensitized Solar Cells and of Quantum Dots - Examples of Electron Transfers and Relation to Ensemble Studies Lindau-Nobel Rudolph Marcus 2013 00:32:00

Single Molecule Studies of Initial Steps in Dye Sensitized Solar Cells and of Quantum Dots – Examples of Electron Transfers and Relation to Ensemble Studies

by Rudolph Marcus
Single Molecule Studies of Initial Steps in Dye Sensitized Solar Cells and of Quantum Dots – Examples of Electron Transfers and Relation to Ensemble Studies
for 18-22 and upwards,
Lectures | 18-22 and upwards | 4 years ago | 809 views
Rating:

We consider two fields of single molecule studies of intermittently fluorescing systems.  In both fields the intermittency is assumed to involve diffusion controlled electron transfer.  One of these studies involves the initial steps in dye-sensiti....

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Shears sizes2 00:04:00

Sizing Things Up

by Tara Shears
Sizing Things Up
for 14-19 and upwards,
Lectures | 14-19 and upwards | 9 years ago | 800 views
Rating:

Dr Tara Shears explains that one of Science's greatest achievements is to have accurately measured everything from the width of the universe to the diameter of a quark. This film features an animated zoom in from the universe to the heart of a hydrog....

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sound 00:09:00

Sound

by Joe Wolfe
Sound
for 14-19 and upwards,
Lectures | 14-19 and upwards | 8 years ago | 935 views
Rating:

Sound is a longitudinal wave of variations in pressure and density. We derive and measure its speed.

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standing-waves 00:09:00

Standing waves

by Joe Wolfe
Standing waves
for 14-19 and upwards,
Lectures | 14-19 and upwards | 7 years ago | 1260 views
Rating:

Reflecting waves gives standing waves, which can be resonances. Standing waves on strings and in pipes and plates.

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Bucur 00:09:00

Swelling and Doping of Polyelectrolyte Multilayers and Application

by Claudiu B Bucur
Swelling and Doping of Polyelectrolyte Multilayers and Application
for 22 and upwards,
Lectures | 22 and upwards | 11 years ago | 1185 views
Rating:

Thin polymer films are doped with electrolytes to produce novel effects.

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doppler-effect 00:10:00

The Doppler effect

by Joe Wolfe
The Doppler effect
for 14-19 and upwards,
Lectures | 14-19 and upwards | 8 years ago | 1387 views
Rating:

Moving either source or receiver produces a frequency shift called the Doppler effect, which we measure and analyse.

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TheEggTrick_2.jpg 00:01:00

The Egg Trick Trailer

by Steve Acquah
The Egg Trick Trailer
for All ages,
Arts presentations | All ages | 5 years ago | 6320 views
Rating:

A short film starring Ian McKellen www.theeggtrick.com Visit the Facebook page: More details | Watch now

eye-colour-vision 00:12:00

The eye and colour vision

by Joe Wolfe
The eye and colour vision
for 14-19 and upwards,
Lectures | 14-19 and upwards | 6 years ago | 1672 views
Rating:

The physics of the eye, its performance and colour vision: refraction and accommodation; photoreceptors and resolution; compromises in visual performance.

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Hare Fresnel 00:05:00

The Fresnel Lens

by Jonathan Hare
The Fresnel Lens
for 14-19 and upwards,
Lectures | 14-19 and upwards | 5 years ago | 748 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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nature-of-light 00:12:00

The nature of light

by Joe Wolfe
The nature of light
for 14-19 and upwards,
Lectures | 14-19 and upwards | 6 years ago | 840 views
Rating:

White light comprises colours in the visible spectrum. The electromagnetic spectrum. Speed of light. Young's experiment and waves. Quanta and photons.

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The Royal Society and science fiction 01:11:00

The Royal Society and science fiction

by Farah Mendlesohn
The Royal Society and science fiction
for 14-19 and upwards,
Lectures | 14-19 and upwards | 4 years ago | 530 views
Rating:

The lone (mad) scientist is a common trope in science fiction, but hidden away is a fascination with secret and semi-secret societies who work for the future of all mankind. This talk will look at the representation of the Royal Society in science fi....

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