Re: FASTER THAN LIGHT TRAVEL NOW A FACT... No. The photons (water packets) are going away from the source
(radially). The spinning of the beam really only happens at the source
(the sprinkler). The photons can only go outward. The "beam" appears
to be turning (and far enough out it can be much faster than the speed
of light), but the photons at the point where the beam is turning at 2c
(tangentially) are only going at 1c (radially).
To make it short: no mass (energy) is going faster than light. But
beyond a certain point the tangential velocity of the beam (which is a
position, not mass or energy) that is moving.
You just don't get it. Photons (things) can only go in that one
direction (radial). The tangential "velocity" is just the speed of a
point in space. That point is a position. Not a "thing". That
position along the beam is massless and energyless and therefore has no
speed limit....
A "beam of light" is not a single thing. It is a bunch of little things
that are all going in the same direction.
If I turn it at some number of degrees per second (angular rate) the
photons go away at c. But at some point along the beam, the angular
rate of the beam is c and 2x farther our it is 2x and so on. But NO
MASS OR ENERGY IS GOING FASTER THAN C. Just the imaginary position of
the beam.
In numbers:
I have a beam shooting out photons. The photons go out at c.
I turn the beam (like a lighthouse) at 30° per second.
At 352,251,076 meters away along the beam, the photons there are still
travelling away at c (2.99X10^8 m/s).
The beam at that point is sweeping at a right angle to the direction of
movement of the photons there.
That point on the beam is "changing positions" at c and at a right angle
to the photon that is still going outward at c.
Nothing of mass/energy is travelling at a right angle to the beam, only
that point along the beam is moving.
Now, if I go 2X as far along the beam (704,502,152 m). The photons
there are still travelling at c and still outward. The point along the
beam is now moving at 2X C at a right angle to the photon stream at that
point. But that point is just a position. It is neither energy nor
mass. It is just an idea.
No. The "mass" (photons) are going one way.
The "point along the beam" is travelling faster than c. But it is
massless, energyless and therefore can do as it wants. It's not a thing.
Cheers,
Alan
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Alan Browne
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