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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 | 11 years ago | 2421 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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00:11:00

Geometrical optics

by Joe Wolfe
Geometrical optics
for 14-19 and upwards,
Lectures | 14-19 and upwards | 11 years ago | 1628 views
Rating:

On scales much bigger than the wavelength, rays explain the behaviour of interfaces, mirrors, lenses, optical instruments, including telescopes and microscopes.

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00:12:00

The nature of light

by Joe Wolfe
The nature of light
for 14-19 and upwards,
Lectures | 14-19 and upwards | 12 years ago | 1546 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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00:10:00

The Doppler effect

by Joe Wolfe
The Doppler effect
for 14-19 and upwards,
Lectures | 14-19 and upwards | 13 years ago | 2183 views
Rating:

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

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00:05:00

The Light Bulb

by Bill Hammack
The Light Bulb
for 11-14 and upwards,
Lectures | 11-14 and upwards | 13 years ago | 5940 views
Rating:

Bill reads from his book of fairy tales. He tells the story of the engineering of a light bulb, focusing on the materials breakthrough needed to make the filament.

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00:03:00

Plasma

by Bill Hammack
Plasma
for 5-7 year olds,
Lectures | 5-7 year olds | 13 years ago | 2104 views
Rating:

Bill cuts a fluorescent light out of his ceiling to show that plasmas and their products are all around us - they're essential in making circuit boards, lights, and even potato chip bags.

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00:02:00

Black Box – A flight data recorder

by Bill Hammack
Black Box – A flight data recorder
for 11-14 and upwards,
Lectures | 11-14 and upwards | 13 years ago | 3398 views
Rating:

In designing an object an engineer must choose the proper material. Never is this more important than in the 'black box' flight data recorder.

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00:12:00

Color Theory

by Sarah Ferguson
Color Theory
for 14-19 and upwards,
Undergraduate presentations | 14-19 and upwards | 13 years ago | 1749 views
Rating:

For my project I am giving a brief history of color theory with emphasis on how science and color theory have interacted. I focus on aspects like primary colors, how color is perceived, and the artists who were at the forefront of color and design. I....

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00:13:00

A History of Bicycles

by Jack Tomasetti
A History of Bicycles
for All ages,
Undergraduate presentations | All ages | 13 years ago | 5046 views
Rating:

This presentation reviews the basic history of the bicycle starting with the Hobby Horse. We discuss significant changes to the bicycle in terms of efficiency, safety and comfort. These advances in bicycle technology include lighter construction, the....

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00:11:00

Aeronautical Engineering

by Lorne Hiller
Aeronautical Engineering
for 14-19 and upwards,
Undergraduate presentations | 14-19 and upwards | 13 years ago | 7268 views
Rating:

My presentation is on the history of flight, the physics of flight and the different types of aircraft that exist. This includes the Wright brothers , the Bernouli effect and jet propelled aircraft.

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01:03:00

Plastic fantastic: electronics for the 21st century

by Richard Friend
Plastic fantastic: electronics for the 21st century
for 18-22 and upwards,
Lectures | 18-22 and upwards | 14 years ago | 1482 views
Rating:

Plastics - or, more correctly, polymers have traditionally been used by the electronics industry as passive materials. Now however, new types of polymers have been discovered which behave as semiconductors. For example, they can emit light when subje....

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01:05:00

Microscopy goes cold: secrets of frozen viruses

by Tony Crowther
Microscopy goes cold: secrets of frozen viruses
for 18-22 and upwards,
Lectures | 18-22 and upwards | 14 years ago | 1477 views
Rating:

Viruses are a major cause of death and disease. Too small to be seen by light microscopy, they were first visualised about 50 years ago by electron microscopy. Dr. Crowther describes his work on the development of the methods and illustrates how he h....

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