منابع مشابه
A Cosmological Test for General Relativity
The latest results in cosmography as well as the latest observations of the cosmic microwave background (CMB) and of supernovae have reinforced the emergence of a canonical paradigm for cosmology. Most of the cosmological parameters constituting this concordance model are now known up to five per cent of relative accuracy. We can rely on these accurate values of the parameters if the fundamenta...
متن کاملProposed new test of spin effects in general relativity.
The recent discovery of a double-pulsar PSR J0737-3039A/B provides an opportunity of unequivocally observing, for the first time, spin effects in general relativity. Existing efforts involve detection of the precession of the spinning body itself. However, for a close binary system, spin effects on the orbit may also be discernible. Not only do they add to the advance of the periastron (by an a...
متن کاملTest of General Relativity : 1995 - 2002 Measurement of Frame - Dragging
After an introduction on phenomena due to spin and mass-energy currents on clocks and photons, we review the 1995-2001 measurements of gravitomagnetic field of Earth and Lense-Thirring effect obtained by analyzing the orbits of the two laserranged satellites LAGEOS and LAGEOS II; this method has provided a direct measurement of Earth’s gravitomagnetism with accuracy of the order of 20 %. A futu...
متن کاملPrediction in general relativity
Several authors have claimed that prediction is essentially impossible in the general theory of relativity, the case being particularly strong, it is said, when one fully considers the epistemic predicament of the observer. Each of these claims rests on the support of an underdetermination argument and a particular interpretation of the concept of prediction. I argue that these underdeterminati...
متن کاملGeneral-relativistic Visualization General Relativity
I n our previous article about special-relativistic visualization,1 we described what the travelers from our highly developed civilization observed when they passed the Earth; now, they set out for the Cygnus X-1 binary system, which is roughly 6,000 light years away. The Cygnus X-1 system consists of a super giant variable star (HDE 226868) and a very compact object—presumably a black hole—wit...
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ژورنال
عنوان ژورنال: Proceedings of the Edinburgh Mathematical Society
سال: 1937
ISSN: 0013-0915,1464-3839
DOI: 10.1017/s0013091500008312