Yes, it should. Yet if
matter is created, its effect on the universe is instantaneous. All
good fun.
This is a delightful
experiment and it nicely comes up with the right answer. Even better
as we go out into to solar system, this can be replicated everywhere
to great effect and will become a standard.
Thus any residual doubts
about gravity been linked electromagnetic propagation can be set
firmly aside.
I am presently using a
superior nomenclature to describe what has been called
electromagnetic radiation or anything else. My descriptive phrase is
now partially bounded curvature or pbc. Bounded curvature or
bc is effective for discussing particles. A Mobius strip is a
partially bounded curvature. I am doing this because the historical
language interferes with the communication of these ideas.
Chinese scientists
find evidence for speed of gravity
by Staff Writers
Beijing (XNA) Dec 28, 2012
Chinese scientists
revealed Wednesday that they have found evidence supporting the
hypothesis that gravity travels at the speed of light based on data
gleaned from observing Earth tides.
Scientists have been
trying to measure the speed of gravity for years through experiments
and observations, but few have found valid methods.
By conducting six
observations of total and annular solar eclipses, as well as Earth
tides, a team headed by Tang Keyun, a researcher with the Institute
of Geology and Geophysics under the Chinese Academy of Sciences
(CAS), found that the Newtonian Earth tide formula includes a factor
related to the propagation of gravity.
"Earth tide"
refers to a small change in the Earth's surface caused by the gravity
of the moon and sun.
Based on the data, the
team, with the participation of the China Earthquake Administration
and the University of the CAS, found that gravitational force
released from the sun and gravitational force recorded at ground
stations on Earth did not travel at the same speed, with the time
difference exactly the same as the time it takes for light to travel
from the sun to observation stations on Earth.
The scientists
admitted that the observation stations are located near oceans,
indicating that the influence of ocean tides might have been strong
enough to interfere with the results.
Consequently, the
team conducted separate observations of Earth tides from two stations
in Tibet and Xinjiang, two inland regions that are far away from all
four oceans, as well as took measures to filter out other
potential disturbances.
By applying the new
data to the propagation equation of gravity, the team found that the
speed of gravity is about 0.93 to 1.05 times the speed of light with
a relative error of about 5 percent, providing the first set of
strong evidence showing that gravity travels at the speed of light.
Their findings have
been published online in English by German science and technology
publishing group Springer.
Printed articles in
both Chinese and English will be carried in a January 2013 edition of
the Chinese Science Bulletin, according to the CAS Institute of
Geology and Geophysics.
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