Dear Orac Can we speak about Earth and Sun ( sky mechanic )
and
not Use others planet around Sun and Earth
Your Problem is that You want to speak about sigle atom without information about many problems around athom !!!
Mr Mach learned Us that all bodies in the universe cooperate
small mass m motion can change huge mass M velocity
important is speed and inertia
( in the universe not exist friction ) Inertia rise up if velocity rise up
What Is it black hole ? Information about body is moving slower than body ? or we have huge abberation and very low signal level !!!!
( apparent point is important ? )
Not exist C+ V what if V is closed to C ????
apparent point it is very good tool for many facts NOT for SINGLE ATHOM ( not real teoretical example)
http://1.bp.blogspot.com/-QDhADrDXABA/UVl_hphDVsI/AAAAAAAAAxc/skybrn6FqbQ/s1600/darkmaterr.JPGhttp://1.bp.blogspot.com/-7aNEnYJIEBU/UVRx1T-PBjI/AAAAAAAAAww/UVzA5j7ymfU/s1600/black+holes.JPG 
