"Red on the Right Returning." I.e., a ship shows red and green masthead lights. The orientation of the lights gives others a clue as to relative direction of travel. For fun, does anybody why sailors would be banging on a trashcan and bell?
If you row racing boats you quickly observe that bow-side oars have a green collar and stroke-side ones have a red one. What is confusing is the green collared oars extend to your left and the red ones to your right. But then, you are facing the stern when you row. (This reminds me of the tangle my son gets into over anions and cations in chemistry. Anions are attracted to the anode, which is positively charged, so they are the -ve ions. It's made even wore by the fact that what flows in an electrochemical circuit is electrons, which are negatively charged. So they flow from the -ve cathode to the +ve anode. Please Register or Log in to view the hidden image!)
Up, down, left, right are all relative. anecdotes: Buck Fuller had a thought that his globe hopping rendered up and down less than satisfactory---so he began using away from or toward the center of gravity of the earth. I enjoyed teasing him with away from or toward the center of the earth/moon gravitational system-----and then i read Milankovitch and the gravitational effects of the other planets-----Things got sillier and sillier after that-----but we had some fun. and When I was in the army, I used to volunteer for the plantings---- One day, the mother of the deceased threw the flag on the ground and spit in the sergeant's face as he handed her the flag............. the poor fool lost it---we formed up next to the bus with him facing us---the door to the bus was on his right---our left, and with a cracking voice, he commanded "to the right harch" ok, some turned right, some turned left, and a couple of us just looked at the poor sergeant----------I stepped forward, turned, and said--"get on the bus guys" sometimes seeking to define direction is counter productive
That doesn't answer the question. Where do the "higher" dimensions come in? Where does "polarity" come in?
Well spotted! We had to do that in the Platte estuary one time, not far from where Graf Spee went down. It was on, but that was the local system, so we were obliged to use it.
all distance is relative however, speed is also relative WHAT it is relative to is the question of the stationary body(you) light sound time
