Please use this identifier to cite or link to this item:
http://bura.brunel.ac.uk/handle/2438/4833
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Moore, GI | - |
dc.contributor.author | Stacey, FD | - |
dc.contributor.author | Tuck, GJ | - |
dc.contributor.author | Goodwin, B | - |
dc.contributor.author | Linthorne, NP | - |
dc.contributor.author | Barton, MA | - |
dc.contributor.author | Reid, DM | - |
dc.contributor.author | Agnew, GD | - |
dc.date.accessioned | 2011-03-18T11:48:23Z | - |
dc.date.available | 2011-03-18T11:48:23Z | - |
dc.date.issued | 1988 | - |
dc.identifier.citation | Physical Review D 38(4): 1023-1029, Aug 1988 | en_US |
dc.identifier.issn | 0556-2821 | - |
dc.identifier.uri | http://bura.brunel.ac.uk/handle/2438/4833 | - |
dc.description | Copyright @ 1988 The American Physical Society | en_US |
dc.description.abstract | A vacuum balance that compares the weights of 10-kg stainless-steel masses suspended in evacuated tubes at different levels in a hydroelectric reservoir is being used to measure the gravitational attractions of layers of lake water up to 10 m in depth. The mean effective distance between interacting masses in this experiment is 22 m, making it the largest-scale measurement of G using precisely controlled moving masses. The experiment extends laboratory-type measurements into the range previously explored only by geophysical methods. Assuming purely Newtonian physics the value of the gravitational constant determined from data obtained so far is G=6.689(57)×10-11 m3 kg-1s-2, which agrees with laboratory estimates. The data admit at a 0.6 standard deviation level the parameters of non-Newtonian gravity inferred from geophysical measurements in mines and a tower. These measurements push the estimated ranges of non-Newtonian forces down to a scale accessible to our reservoir experiment, so that experimental improvements now at hand may provide a critical test of non-Newtonian effects. | en_US |
dc.language.iso | en | en_US |
dc.publisher | American Physical Society | en_US |
dc.title | Determination of the gravitational constant at an effective mass separation of 22 m | en_US |
dc.type | Research Paper | en_US |
dc.identifier.doi | http://dx.doi.org/10.1103/PhysRevD.38.1023 | - |
Appears in Collections: | Sport Dept of Life Sciences Research Papers |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Fulltext.pdf | 1.16 MB | Adobe PDF | View/Open |
Items in BURA are protected by copyright, with all rights reserved, unless otherwise indicated.