RUI:  Measuring Newtonian and Non-Newtonian Gravity on an   Intermediate Distance Scale (Physics)
{'Code': '03010700', 'Directorate': {'Abbreviation': 'MPS', 'LongName': 'Direct For Mathematical & Physical Scien'}, 'Division': {'Abbreviation': 'PHY', 'LongName': 'Division Of Physics'}}
{'SignBlockName': 'Richard Isaacson', 'PO_EMAI': None, 'PO_PHON': None}
A direct measurement will be initiated for the Newtonian                   constant of gravitation, G, on a much larger distance scale than                previously achieved.  The method to be used is a precise                        measurement of changes in the local acceleration of gravity, g,                 at two locations in the vicinity of a large hydroelectric storage               pond.  A detailed study of the proposed site (the Ludington                     Pumped Storage Facility in Ludington, MI) and the proposed                      instrumentation (the portable absolute gravimeters developed at                 JILA) has shown that a measurement of G to a precision of 0.1%,                 on a distance scale of 10-100 m, is feasible.  The result would                 be directly sensitive to a proposed "intermediate range force",                 and could confirm or negate some published claims for its                       strength and range.  This project will involve undergraduate                    students in laboratory calculations and field measurements in a                 subject area which is both accessible to their understanding and                of immediate interest to the physics community.
{'FirstName': 'David', 'LastName': 'Van Baak', 'PI_MID_INIT': 'A', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'David A Van Baak', 'EmailAddress': 'dvanbaak@calvin.edu', 'NSF_ID': '000325418', 'StartDate': '01/15/1989', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'Calvin University', 'CityName': 'GRAND RAPIDS', 'ZipCode': '495464301', 'PhoneNumber': '6165266000', 'StreetAddress': '3201 BURTON ST SE', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Michigan', 'StateCode': 'MI', 'CONGRESSDISTRICT': '03', 'CONGRESS_DISTRICT_ORG': 'MI03', 'ORG_UEI_NUM': 'NNLQK7LNGL93', 'ORG_LGL_BUS_NAME': 'CALVIN UNIVERSITY', 'ORG_PRNT_UEI_NUM': 'NNLQK7LNGL93'}
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{'Code': '1243', 'Text': 'Gravity Exp. & Data Analysis'}
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1988&All=true', 'xml': '8813286.xml'}