Well, cliffs, skyscrapers...
Drops something and you hear when it touches the ground. iPhone will say the depth of the well, cliffs or other.
If you rely on sight. the program displayes depth and speed, at the moment, of the body in freefall.
Well, cliffs, skyscrapers...
Drops something and you hear when it touches the ground. iPhone will say the depth of the well, cliffs or other.
If you rely on sight. the program displayes depth and speed, at the moment, of the body in freefall.