Steve Capps wondered if gravity could affect atomic clocks: «Since time
slows in a gravitational field, are atomic clocks so sensitive that perhaps moving them from the ground floor to the second or third floor of a building would have a measurable effect, given that gravity would be less on the higher floors?»
Not exact matches
The resulting theory, though founded on quite different principles and developed
in an independent fashion from Einstein's theory, nevertheless gives predictions that are identical to the latter's, within observable limits, for each of the four classic tests of
gravitational theories (i.e., precession of the perihelion of Mercury, redshift of light emitted by a massive body, the bending of light - beams
in a strong
gravitational field, and the apparent
slowing of the speed of light propagation near massive bodies).
But
in the 1960s, the American physicist Robert H. Dicke of Princeton, who died
in 1997, noted that if the interior of the sun were rotating rapidly — compared to a
slower speed observed at the surface — then the non-spherical component of the sun's
gravitational field could produce up to 10 percent of the effect Einstein had computed,
in which case, General Relativity would be an incomplete theory of gravity.
As the argument goes, as an observer approaches the horizon, time
slows down, since clocks tick
slower in a strong
gravitational field.
Kramer and his colleagues are trying to do just that: «We can test many different aspects, among them the characteristics of
gravitational waves, the propagation of light
in gravitational fields, the fact that clocks go
slower near massive bodies, the curvature of spacetime, etc..
In a column of air under a gravitational field which, unlike our atmosphere, is in thermal isolation, the quicker molecules will tend to rise higher and lose some of that velocity (or energy) and the slower ones will fall and gain velocit
In a column of air under a
gravitational field which, unlike our atmosphere, is
in thermal isolation, the quicker molecules will tend to rise higher and lose some of that velocity (or energy) and the slower ones will fall and gain velocit
in thermal isolation, the quicker molecules will tend to rise higher and lose some of that velocity (or energy) and the
slower ones will fall and gain velocity.