The positive z-axis.
The correct answer to the question "What's up?"
In 3-dimensional Cartesian terms, the x-axis is east and west, the y-axis is north and south, and the z-axis is up and down. So the positive z-axis is what's up.
In 3-dimensional Cartesian terms, the x-axis is east and west, the y-axis is north and south, and the z-axis is up and down. So the positive z-axis is what's up.
The positive z-axis. by MarshoT December 1, 2009
Get the The positive z-axis. mug.