*Originally posted by CrazyLilTing*

**Thanks to all posters!
**

Xantos, sorry... My mother tongue is spanish. And I an a very bad typist btw... ðŸ™‚

Thanks sonhouse for your post. It is very interesting.

But a caveat about my original post: it is only a mathematical formulation, not a physical one... so how it enters here the physics, asuming there is is a super mass that curves the space? Su ...[text shortened]... eel fre to correct my english and spelling. It will be welcome. If you have the time, of course!

The "super mass" that curves space is nothing less than the entire

mass of the universe. Thats the overall geodesic. Theory goes, if

you aim a beam of light away from you into open space, billions of

years later, that beam will hit the back of your head, come at you

from the opposite direction. Thats because the whole universe curves

in on itself. At least thats the theory. In a three dimensional analogy,

if you draw a line on the surface of a sphere, a globe of the earth

for instance, keep on drawing a straight line, it will come back to itself.

Thats the geodesic for the sphere in 3D. The universe is like that

but in a higher dimensional version where if you draw a straight line,

it will come back to itself even though you think you are going in

a straight line, you are actually curving but you don't see it. Just like

drawing a line on the surface of our planet earth, you keep drawing

a straight line but you don't notice the small curvature which will

eventually bring you right back to the same place.

BTW in my post on gravitational lensing, I said the curve was

1/117,000th part of a circle. Actually its more like 1/750,000 th part of

a circle. The 117,000 number is the equivalent of the F stop number

on a camera lens. Like F8 means the focal distance is 8 times the

diameter of the lens. So the "F stop" of the solar lens is

F117,000. If you divide the focal distance of the sun, about 52 billion

miles to first focus by 117,000 you get the radius of the sun, about

440,000 miles. So that is actually twice the F stop number, the

real Fstop of the sun is half that, or about F 58,000.

Been a while since I examined those numbers.