In article , (Alex Terrell) writes:
The effect of solar radiation pressure has been observed. This seems
to be one of many experiments that appear to break a fundamental law
of Physics (Carnot's rule).

Nothing is broken here.

(I read about another where light was made to trevel faster than
light, but no information went faster than light).

The interesting bit is always finding out how the laws of physics are
conserved, and Geoffrey's done just that.

May I ask a more basic question?

If photons have mass,

They don't

and if they travel at c, how come they don't
have infinite mass? Since they don't have infinite mass, they can have
no mass, and therefore no momentum.

Nope, wrong. Mass and momentum are separate things.

Mati Meron | "When you argue with a fool,
| chances are he is doing just the same"