Is there such thing as up and down?

Question

For example. If I was in England Australia would be down below, but if I was stood in Australia England would be down below. Same as in space every direction is the same. So what is up and down if it doesn't exist?

Answer 1

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Up and down are not fixed directions.

'Down' is the direction objects naturally fall under gravity.

When you are on earth, down (wherever you happen to be) is towards the centre of the earth. Up is the opposite direction - away from the centre of the earth.

Of course if you happened to be somewhere on the moon say, down is towards the centre of the moon.)

In the absense of a gravitational field, up and down have no real meaning.

Answer 2

Up and down refer to the subject's orientation. Whichever way gravity is pulling, that's down. In a no-gravity environment, it's based completely on each person's orientation within a space, or on an agreed-upon standard based on a static reference point.

Also, the enemy's gate is down.

Answer 3

Up and down are relative, not absolute. Same as left and right, and front and back, they are all relative to you.