Dumb question probably -- But is there a way to measure gravity in a particular area of space, or a "measurement" .. I.E. the gravity 10 miles above Earth v.s 1000 miles above. Not force on another object, but some "unit" or measure of gravity itself.
I've wondered about this myself..
Going by evolution logic, wouldn't it make more sense if a virus actually was beneficial to the body it lives in? That way the virus could be easily spread to other hosts over a longer period (since it would make the host live longer on average)...
Well, how about with gravitational time dilation effects instead of velocity? If you could feel the gravity of 100 suns (and the "time" in that frame), would this be considered relative as well?