sudhirking
- Joined Aug 2, 2009
- 7
thx studiot.. that cleare some doubts
thx studiot.. that cleare some doubts
Gravity bends space. The photon travels in a straight line. So it appears that its path has bent. (bit like the stick in water).When you say a photon is massless, that simply means it is not affected by a gravitational field, right?
But gravity bends light (as in black holes), does it not? I'm a little confused.
The photon travels in a straight line
(or any interspatial manifold along the photon's apparent path)the geodesics of the local manifold
Disagree..., eg the 'light pressure vane' which spins in a vacuum driven by differential light pressure.
Yes, but everything follows the same curve.It's an observer problem. The one situated outside the gravitationally caused spacetime warping sees the photon follow a curved path. The observer riding the photon can see no deviation from a perfectly straight line.
surely that depends upon the manifold and your definition of "straight"?Aw, come on studiot ...
Quote:
the geodesics of the local manifold
(or any interspatial manifold along the photon's apparent path)
... are as straight as 'real' lines get. Ya know, for the sake of argument, like.
Bob I suggest you review your basic Physics notes. One of Rutherford's clasic experiments was to classify radiation as Alpha (+ve), Beta (-ve) and Gamma (uncharged).Photons interact electromagnetically;
Meant to be facetious, really....
Straight lines are unique.
...
Aren't they the ones that lay square eggz?spherical chickens
Yup. to begin with anyway....Aren't they the ones that lay square eggz?
Second order approximation - Spherical chicken with thermal fusion printer in lower colon.The only problem is how to get them ready printed, help with this would be appreciated.
by Jake Hertz
by Jake Hertz
by Jeff Child
by Jake Hertz