Retrograde motion is motion in the direction opposite to the movement of something else, and is the contrary of direct or prograde motion. This motion can be the orbit of one body about another body or about some other point, or the rotation of a single body about its axis, or other phenomena such as precession or nutation of the axis. In reference to celestial systems, retrograde motion usually means motion which is contrary to the rotation of the primary, that is, the object which forms the system’s hub.
Ti-rannosaurus Rex
Ti-rannosaurus
Ti-rant (tyrant)
Ti-ranny (tyranny)
Ti-me to throw (time to throw)
Ti-nosaur (dinosaur)
EDIT: I spelled something wrong:P
“c” (in relation to the speed of light “3e^10” < can use this too) because the speed of light is the same regardless of the reference frame. (meaning: no matter who plays it, they will experience the same feeling)
Lorentz (it’s a scientist name, but only a relativistic physicists such as me would understand) it has to do with time dilation and length contraction.
