Variations of Gravity at One Place.
Abstract
This paper deals with a four months' series of gravity observations made at Houston, Texas, with an instrument having a probable error for one reading of about 0.00002 cm/sec2. There are slow apparent changes depending upon the weather, a diurnal and a semidiurnal change depending upon the sun, and periods depending upon the tidal effect of the moon in distorting the earth or in shifting water on it. These are discussed at length. There is no proof of any variation arising from the earth's absolute motion through space, and none is to be expected unless from a much longer series of observations
- Publication:
-
The Astrophysical Journal
- Pub Date:
- April 1939
- DOI:
- 10.1086/144063
- Bibcode:
- 1939ApJ....89..445T