3 ms·
What does 'down vector' mean in this context?
by umeshunni 3y ago
What does 'down vector' mean in this context?
- frud 3y agoA very precise estimation of which direction gravity is pulling down towards. Which is almost, but not exactly, the vector towards the center of the earth. And it also needs to be disentangled from the suborbital centrifugal/centripetal forces experienced by the movement of the Blackbird.