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Using the Hubble Space Telescope, astronomers say they have spotted their first double Einstein ring – a bizarre optical phenomenon that shows how massive objects like galaxies can bend light rays, furnishing evidence for Einstein’s general theory of relativity.
Originally posted by harddrive21
I guess anyone claiming Einstein's GToR is wrong is just crazy (I believe Stitchin may have made that claim).
Question - can a magnet bend light
Ok, that's not quite true. A magnetic field contains energy,
and energy, through its equivalence to mass, has a gravitational
field, which can bend light. But the effect on light of any
magnetic field we'll ever see would be so small it's utterly
Light beams can get curved if they pass through areas where space-time is warped by powerful gravitational fields, such as one created by a black hole—a phenomenon known as gravitational lensing. But the new technique scientists have developed to manipulate light does not involve warping space-time.
The scientists found they could make a nearly half-inch-wide laser beam passing through their screen appear to curve by 1 millimeter over a 14-inch (35-centimeter) stretch.
-The bending of light as it passes from one medium to another
-Deflection from a straight path undergone by a light ray or energy wave in passing obliquely from one medium (as air) into another (as glass) in which its velocity is different.
It is much more likely that the propagation of electromagnetic waves is, by their very nature, only affected by electromagnetic forces. In this case an inhomogeneous plasma halo around the objects could provide the necessary dielectric conditions to explain the observed Lensing effect
The theory of gravitational lensing makes sense of images of distant quasars around nearby galaxies...until curious minds begin to doubt it.
We show that the large magnification of images around caustics leads to an amplification bias, which can make them dominate the flux in some energy ranges. We argue that clustering in the arrival directions of UHECRs of comparable energy may be due to magnetic lensing around caustics.