95 results found for 11-14-year-olds

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Hammack transistor 00:03:00

The Transistor

by Bill Hammack
The Transistor
for 11-14 and upwards,
Lectures | 11-14 and upwards | 8 years ago | 977 views
Rating:

Bill examines the first transistor ever built. He explains how it works, and its impact on our world today. And, also, he even tests it out!

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Hammack tansistor 2 00:05:00

The Transistor 2

by Bill Hammack
The Transistor 2
for 11-14 and upwards,
Lectures | 11-14 and upwards | 8 years ago | 941 views
Rating:

Bill shows how a transistor works by examing a replica of the first one ever build: The Bardeen-Brattain point contact transistor.

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Hammack Whiffletree 00:02:00

The Whiffletree

by Bill Hammack
The Whiffletree
for 11-14 and upwards,
Lectures | 11-14 and upwards | 8 years ago | 1752 views
Rating:

Bill describes how a whiffletree was used in early calculating devices to do mechanical digital to analog conversion. He shows briefly the device used in an IBM Selectric Typewriter.

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Hare windmills 00:03:00

Three Windmills

by Jonathan Hare
Three Windmills
for 11-14 and upwards,
Lectures | 11-14 and upwards | 10 years ago | 970 views
Rating:

Converting wind power into electricity seems like an ideal way of helping to solve our energy problems. However, the power generated by a windmill is dependent on the wind speed. If the wind drops to half its speed there is as little as an 1/8th of t....

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Hare - Wave Power 00:05:00

Wave Power

by Jonathan Hare
Wave Power
for 11-14 and upwards,
Lectures | 11-14 and upwards | 5 years ago | 1052 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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atom-cesium-atoms 00:05:00

What are we made of?

by Harry Kroto
What are we made of?
for 11-14 and upwards,
Lectures | 11-14 and upwards | 11 years ago | 1251 views
Rating:

Development of the ideas which persuaded us to accept the theory of atoms and molecules as constituents of matter.

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intrographics-01 00:07:00

What is Color?

by Daniel Stribling
What is Color?
for 11-14 and upwards,
Teaching modules | 11-14 and upwards | 5 years ago | 1211 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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Hare Graphene 2 00:06:00

What is Graphene?

by Jonathan Hare
What is Graphene?
for 11-14 and upwards,
Lectures | 11-14 and upwards | 5 years ago | 2410 views
Rating:

In October 2010 the Nobel Prize for Physics was won by Andre Geim and Konstantin Novoselov at Manchester University for their work on graphene but if you are left wondering just what graphene is then watch this video. Jonathan explains all.

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Processed with MaxIm DL 00:02:00

Where do you come from?

by Harry Kroto
Where do you come from?
for 11-14 and upwards,
Lectures | 11-14 and upwards | 11 years ago | 1202 views
Rating:

A simple introduction to our ideas about where the elements which make up the Earth originated.

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Hammack chair 00:03:00

Why a Chair?

by Bill Hammack
Why a Chair?
for 11-14 and upwards,
Lectures | 11-14 and upwards | 8 years ago | 1198 views
Rating:

Bill asks the question 'Why a chair?' ... the answer reveals the human aspects of engineering design.

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Kings - Yeast 00:02:00

Yeast

by Sebastian Klavinskis-Whiting
Yeast
for 11-14 and upwards,
Highschool presentations | 11-14 and upwards | 5 years ago | 924 views
Rating:

Sebastian describes the importance of yeast in this two-minute guide.

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