The Effect of Gravity on Light
I once read that light is slowed down by a gravitational field.
Later, I read that spacetime contorts and c remains the same.
Which is true?
L.A.
Repelled by the Earth
In a previous post, two references were cited. One indicated that the
gravitomagnetic charge was the source of gravitomagnetism. The other
argued that the gravitomagnetic charge was analogous to a magnetic monopole
in electrodynamics. Since gravitomagnetic poles do...
Paradox?
arxiv.org/pdf/gr-qc/0301100
[It is] interesting to consider gravitomagnetic charge which is the source of
gravitomagnetic field just as mass (gravitoelectric charge) is the source of
gravitoelectric field (Newtonian gravitational field)...
For Easy Reference
APPENDIX-- SI (MKS) Dimensisons of the Gravitomagnetic Field.
Mass Current = Kg/Sec = (Weber/Meter)(Coul/Meter)
Gravitomagnetic Dipole Moment = (Kg)(Meter-Squared)/Sec
= Angular Momentum
= (Coulomb)(Weber)
Gravitomagnetic Charge = (Velocity)(Meter) =...
What about 0 < d < 1 ? (inverse square law)
The formula in Gaussian units describing the force between two
coupled bar magnets (d=0 between the opposite poles) is:
F = 2pi M M' A
The same formula can be converted to MKSA units, and after
the smoke clears, is:
F = k P1 P2 / A...
Solution?
Finite force between poles
The force at zero distance between point poles would be infinite,
although all available bar magnets have some size and so you
can never get to zero distance between the poles of coupled bar
magnets. The force gradient between the poles...
Details about my posts
My first post is titled, "Gravitomagnetic Poles" in the Gravitomagnetism thread. The second
is titled, "Plenty of Resources Available." If you continue through the thread you will see
some comments to my posts. I don't put the word Gravitomagnetism in the...
Looking for a Finite Force
For those who are new to my posts on magnetic poles and gravitomagnetic poles
please review them carefully along with the comments by other authors. I am not
going to summarize them here.
As I have shown before, the line of reasoning concerning magnetic...
Inverse Square Law
Previously, the force between the poles of two different bar magnets was given as:
F = k P1 P2 / d^2 (magnitude only).
The poles are fictitious because they are not independent entities. It was shown
that like magnetic poles, there are also (fictitious)...
Plenty of Resources Available
The equation,
F = k P1 P2 / d^2,
contains fictitious sources that lead to a real force. There is no mention of a field, dipole
or otherwise. As you can see the poles of two bar magnets, P1 and P2, are treated like
charges in Coulomb's law. Thus, the force...
Gravitomagnetic Poles
Magnetic Poles and Gravitomagnetic Poles
While magnetic poles are fictitious, they can be used in calculations
to determine the force between two bar magnets. The general
formula for the force between two bar magnets is:
F = (k P1 P2) / d^2
where k is the...
Clarification
To illustrate more clearly what I'm after I'd like to switch
from units in radians to units in degrees.
Given theta = 1085 deg.
n = 1085/360 = 3.0138889
phi = 360(n-3) = 5 deg.
cos(phi) = cos(theta)
Now, are the angles 5 deg. and 1085 deg. equivalent?
Larry
Getting Closer!
If I understand you correctly, you are saying that an argument of any size
is ok.
Isn't there an algorithm that can be done by hand or by computer program that can take an agument of any size (an angle of any size) and reduce it to an angle between 0 and 2pi?
Recall...
Taking this a step further
Ken,
Thanks for reviewing the basics about frequency, period, and angle.
I still need some help with angles larger than 2pi.
Take the equation for a sinusoidally varying
electric field:
E = Eo cos(2pift)
In the above, t doesn't have to be the period...