Re: A 'Massless' question?


varun wrote:
it is a well known fact that light bends due to the force of
gravity(e.g. at the time of solar eclipse...we are able to see the
stars which are behind the Sun,beside the Sun)
according to g=G.m1.m2/r^2 >for gravity to affect ...there should be
some mass but photons do not have any mass(i mean to say rest mass)
then why does gravity affect it.
the Newtonian formula stated above may not be totally right(in
comparison to the einstein's laws) but a shift of few
arc-seconds(1arc-second=1/3600 of a degree) was predicted by this
formula (though it missed the observational data by a few arcseconds)
but the question is...WHY DOES LIGHT BEND WHEN IT HAS NO MASS?
i may be wrong some where...please correct me since i am just 16 years
old but much interested in this stuff
thanks
varun

A variation of this experiment was recently included in the
Cassini mission (Bruno Bertotti, 'Nature' ). A lot more was
learned about solar plasma than how pseudo-particles might
move (if they existed) near a massive body.

If you care to explore the various definitions for 'twilight'
and 'sundown' you will see the apparent bending of light
near a massive body is not something either Einsten
or Eddington discovered.

Saying light moves according to a curvature in 'space-time'
is somewhat like saying a ball rolls down hill because the
brown lines on a topographic map are close together.
The mechanism is revealed in neither case.

You have probably seen some 'rubber ***' illustrations
that try to convey the concept but they are misleading for
all but the purposes of a 'popular' publication.

Photons that don't exist, can't fall, but the energy
budget of GR agrees with the absorption and
emission of Mossbauer experiments.

Why did I type absorption before emission?

Sue...

.