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Having fun with dumpling skin: material physics made alive in the kitchen

Andreas Dewanto and Roland Su Jong Hea

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We report a school project which equips students with both theoretical and practical knowledge in material physics. We construct dumpling skins from a mixture of flour and water. A series of experiments is then conducted to quantify the toughness, hardness, and tensile strength of the skins, and how they are affected by adding other materials into the original material to form composite materials.


PACS

01.50.-i Educational aids

81.40.Np Fatigue, corrosion fatigue, embrittlement, cracking, fracture, and failure

62.20.F- Deformation and plasticity

62.20.Qp Friction, tribology, and hardness

81.70.Bt Mechanical testing, impact tests, static and dynamic loads

81.40.Lm Deformation, plasticity, and creep

Subjects

Condensed matter: structural, mechanical & thermal

Education and communication

Dates

Issue 2 (March 2009)

Received 25 November 2008, in final form 11 December 2008



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