Having read a number of books on cosmology and particle physics, I found my-self raking through 5 or 6 books or looking on the web as I tried to remember some tangible fact that had interested me. In the end, I decided to gather this info and post it under various headings as blogs on MySpace. With the introduction of LaTeX at Physics Forums, I decided to move a couple of them over here. Some are a year old, some are more recent. MySpace blogs
Frame-dragging

Frame-dragging 3- Black holes

Posted Jul21-08 at 03:11 AM by stevebd1
Updated Nov14-08 at 09:53 AM by stevebd1

(continued from Part 2)
Note- All calculations shown are in the equatorial plane

Frame-dragging at the event horizon for a black hole
3 sol mass with an angular momentum factor of a = 0.95

Event horizon radius = 5813.988 m (see Other radii relating to black holes)

(incidentally, the reduced circumference for 5813.988 m is 8861.1 m (using the equation from Part 1) which is the Schwarzschild radius for a 3 sol mass static black hole which...
Posted in Frame-dragging

Frame-dragging 2- White dwarfs & neutron stars

Posted Jul21-08 at 03:07 AM by stevebd1
Updated Aug9-08 at 04:28 AM by stevebd1

(continued from Part 1)
Note- All calculations shown are in the equatorial plane

Frame-dragging at surface of a white dwarf
1.14 sol mass with a radius of 4.5x10^6 m and a 10 minute rotation period-

v (tangential) = circumference x frequency = 2$\pi$4.5x10^6 x 1/600 = 47,218.138 m/s

J = vmr 0.4 = 47,218.138 x (1.14 x 1.9891x10^30) x 4.5x10^6 x 0.4 = 1.9273x10^41 Nms

where J is angular momentum in Nms, v is velocity...
Posted in Frame-dragging