4 results found for 11-14-year-olds

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Hammack Al can 00:02:00

Aluminium drinks can tab

by Bill Hammack
Aluminium drinks can tab
for 11-14 and upwards,
Lectures | 11-14 and upwards | 8 years ago | 1432 views
Rating:

Bill uses slow motion video to show the ingenious engineering design of the apparently simple tab of a pop can.

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Screen Shot 2014-09-25 at 15.50.49 00:05:00

The Changing Shapes of Engineering

by Hal Evans
The Changing Shapes of Engineering
for 11-14 and upwards,
Highschool presentations | 11-14 and upwards | 5 years ago | 1978 views
Rating:

*****  Winner!  *****

Hal has been awarded the 2014 Geoset HighSchool Award for this excellent presentation about how non-circular shapes can have a very useful set of rotational properties.

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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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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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