Geometric Model by Robert Chaffe, a Student of A. Harry Wheeler, Hyperbolic Paraboloid
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HARRY WHEELER, HYPERBOLIC PARABOLOID", "guid": "http://n2t.net/ark:/65665/ng49ca746a9-047d-704b-e053-15f76fa0b4fa", "title": {"label": "Title", "content": "Geometric Model by Robert Chaffe, a Student of A. Harry Wheeler, Hyperbolic Paraboloid"}, "metadata_usage": {"access": "CC0"}, "data_source": "National Museum of American History"}, "indexedStructured": {"date": ["1930s"], "geoLocation": [{"Other": {"type": "Place", "content": "United States"}}, {"Other": {"type": "Place", "content": "Massachusetts"}}, {"Other": {"type": "Place", "content": "Worcester"}}, {"points": {"point": {"latitude": {"type": "decimal", "content": "42.25"}, "longitude": {"type": "decimal", "content": "-71.8"}}}}], "object_type": ["Models"], "name": ["Wheeler, Albert Harry", "Chaffe, Robert"], "topic": ["Science", "Mathematical Association of America Objects", "Mathematics"], "place": ["United States", "Worcester", "Massachusetts"], "online_media_type": ["Images"]}, "freetext": {"setName": [{"label": "See more items in", "content": "Medicine and Science: Mathematics"}, {"label": "See more items in", "content": "Science & Mathematics"}, {"label": "See more items in", "content": "Mathematical Association of America Objects"}], "date": [{"label": "date made", "content": "1937"}], "identifier": [{"label": "ID Number", "content": "MA.304723.180"}, {"label": "accession number", "content": "304723"}, {"label": "catalog number", "content": "304723.180"}], "notes": [{"label": "Description", "content": "Suppose two opposite sides of a rectangle are joined by straight lines parallel to the other two sides. Lifting two opposite corners of the rectangle\u00e2\u0080\u0094and keeping the lines taut\u00e2\u0080\u0094one obtains a saddle-shaped figure known as a hyperbolic paraboloid."}, {"label": "Description", "content": "This model of a hyperbolic paraboloid was made from balsa wood by Robert Chaffe, a high school student of A. Harry Wheeler in the class of 1937. It is likely that this person is Robert C. Chaffe (1918\u00e2\u0080\u00931991) who was born in Connecticut, attended high school in Worcester, Massachusetts, graduated from the Worcester Polytechnic Institute in 1942, and seems to have spent his career as a salesman and sales engineer in Worcester and nearby Auburn."}, {"label": "Description", "content": "References:"}, {"label": "Description", "content": "Gerd Fischer, <I>Mathematical Models</I>, vol. 2, Braunschweig/Wiesbaden: Friedr. Vieweg & Sohn, 1986, pp. 3\u00e2\u0080\u00934."}, {"label": "Description", "content": "U.S. Census records."}, {"label": "Description", "content": "Massachusetts city directories."}, {"label": "Location", "content": "Currently not on view"}], "creditLine": [{"label": "Credit Line", "content": "Gift of Helen M. Wheeler"}], "name": [{"label": "teacher of maker", "content": "Wheeler, Albert Harry"}, {"label": "maker", "content": "Chaffe, Robert"}], "topic": [{"label": "subject", "content": "Mathematics"}], "place": [{"label": "place made", "content": "United States: Massachusetts, Worcester"}], "physicalDescription": [{"label": "Physical Description", "content": "wood, balsa (overall material)"}, {"label": "Physical Description", "content": "tan (overall color)"}, {"label": "Physical Description", "content": "cut and glued (overall production method/technique)"}, {"label": "Measurements", "content": "average spatial: 12.5 cm x 21.6 cm x 15.5 cm; 4 29/32 in x 8 1/2 in x 6 3/32 in"}], "dataSource": [{"label": "Data Source", "content": "National Museum of American History"}], "objectType": [{"label": "Object Name", "content": "geometric model"}]}}, "url": "edanmdm:nmah_1066641", "hash": "bde00b90076c5cd1357df0b31bd52dab41bc30ca", "docSignature": "26eef28897d851f48e7c7c8b3553adf5", "timestamp": 1663781938, "lastTimeUpdated": 1653680496, "title": "Geometric Model by Robert Chaffe, a Student of A. Harry Wheeler, Hyperbolic Paraboloid"}