A value forGfrom beam-balance experiments

Autor: Frithjof Nolting, Jürgen Schurr, W. Kündig, St. Schlamminger
Rok vydání: 1999
Předmět:
Zdroj: Measurement Science and Technology. 10:487-491
ISSN: 1361-6501
0957-0233
DOI: 10.1088/0957-0233/10/6/312
Popis: A high-precision measurement of the Newtonian gravitational constant G by means of a beam balance is being carried out at the University of Zurich. We have made test measurements in which the gravitational force of 103 kg of water was used and G was determined with a relative standard uncertainty of 220 × 10-6. Currently, measurements with 13.5 × 103 kg of mercury are in progress. These measurements are not completed yet, but a preliminary result is presented.
Databáze: OpenAIRE