00:03:00
Why a Chair?
Bill asks the question 'Why a chair?' ... the answer reveals the human aspects of engineering design.
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00:02:00
Aluminium drinks can tab
Bill uses slow motion video to show the ingenious engineering design of the apparently simple tab of a pop can.
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00:02:00
The Whiffletree
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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