"phobos" wrote in message om...
(Marcel Luttgens) wrote in message . com...
The "Triplets" thought experiment (Adapted from the "Twin paradox")
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"Terence sits at home on Earth. Galaxy (yes, it's her name)
flies off in a space ship at a velocity v/2. Simultaneously,
Terra (also a name) flies off in the opposite direction at -v/2.
After a while, Terra, who considers that Galaxy flies away
from her at a velocity v

Only for v c.

Don't worry about that. He has v c in mind, since
he perfectly knows that he does not understand even
the first letter of special relativity -- for starters, ask
him about events and coordinates. That's why he is
having a go now at the *much* simpler theory of
general relativity now ;-)

Dirk Vdm