On Friday, 4 January 2019 00:54:21 UTC-5, StarDust wrote:
On Wednesday, January 2, 2019 at 11:25:34 PM UTC-8, Gerald Kelleher wrote:
Orbital motion is an independent motion to daily rotation which is why the analogy of an outstretched arm continuously pointing at a centre is roughly why we see the same side of our orbiting satellite and why the Chinese lander will remain out of sight.

Achievements in engineering do not equate to astronomical achievements no more than the invention of a car affects the motions of the Earth so the gap is presently at its widest as commentators this morning announce a spinning moon along with its orbital motion.

The lunar day/night cycle is a consequence of its orbital motion alone, its divisor seen from Earth being an orbital trait just as the Earth's divisor is. Whereas the Earth turns to the Sun in two distinct ways, one due to intrinsic rotation and the other as a function of the planet's orbital motion with the Polar day/night cycle in isolation and the seasons in combination with daily rotation being the outcome of these dual surface rotations.

To hear these people talk about 'tidal locking' is a symptom of astronomical oblivion even when the engineering achievement of putting a lander on the side of the moon that doesn't face our home planet is actual.

China will put a missile base on the Moon?

Well, considering American put a man on the moon 49 years ago, and the Chinese just put a probe on it, maybe in FIVE HUNDRED years they'll have a base..