Shape memory effect: heating the Ferris wheel

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Uploaded by on Dec 22, 2009

The shape memory effect as demonstrated by the Ferris wheel. The wheel is made up of 10 springs stretched apart by weights. The video shows what happens when the springs are heated. From TLP: Superelasticity and Shape Memory Alloys, http://www.doitpoms.ac.uk/tlplib-dev2008/superelasticity/shape_memory2.php Courtesy of DoITPoMS, The University of Cambridge. Released under Creative Commons Attribution-Non-Commercial-Share Alike licence http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

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  • i guess you could make (a very inefficient) generator from that :D

  • @SettimaLegione

    as the springs contract more weight gets pulled unto the right side... the right side gets a little heavier. then gravity turns the wheel clockwise.

  • I understand heat makes springs contract.

    But I dont understand why the wheel should rotate.

    For example, why clockwise and non anti-clockwise?

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