Geophysical Tests for Intermediate-Range Forces

Abstract

The suggestion in 1986 of a possible 'fifth force' in Nature led to considerable experimental and theoretical effort to detect such a force, and deviations from Newtonian gravity. Geophysical experiments play an important role in the detection of such a force, because the natural scale of geophysical experiment covers a range that is not readily accessible via other methods. This work describes several investigations which search for the presence of non- Newtonian gravity. These include a new tower experiment, and an analysis of exponential models of non-Newtonian gravity. In the course of carrying out the tower experiment problems were encountered in working with the Global Positioning System, and these are described in detail. As a result of this work we can say that support for the validity of Newtonian gravity over geophysical scales has increased. Non-Newtonian Gravity Gravitational Physics.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1993
Accession Number
ADA278449

Entities

People

  • Carrick Talmadge
  • Ephraim Fischbach

Organizations

  • Purdue University

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Space

DTIC Thesaurus Topics

  • Air Force
  • Convection
  • Detection
  • Elementary Particles
  • Glaciers
  • Global Positioning Systems
  • Magnetic Fields
  • Measurement
  • Nuclear Physics
  • Particle Physics
  • Physics Laboratories
  • Quantum Properties
  • Radio Frequency Interference
  • Space Sciences
  • Spin-Orbit Interaction
  • Standards
  • Weak Bosons

Readers

  • Fluid Dynamics.
  • Geotechnical Engineering.
  • Theoretical Analysis.

Technology Areas

  • Space
  • Space - Spacecraft Maneuvers