Re: A 'Massless' question?
- From: "T Wake" <Usenet.es7AT@xxxxxxxxxxxxx>
- Date: Tue, 30 May 2006 18:43:50 +0100
"varun" <varun.vampire@xxxxxxxxx> wrote in message
news:1149001004.875591.147730@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
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
Read Sam Wormley's post and follow the link he has posted. Sam is very good
at providing solid information.
Ignore the posts by any of the resident crackpots we get here. If some one
posts a diatribe about photon mass, then check out their posting history to
see if they are sane or otherwise.
Light does not need mass to move in a curve - the mass of the large object
(i.e. the Sun in this example) is sufficient to "warp" space around it,
which means the light has to follow the curved path.
Keep this interest going.
.
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