Well, your credibility is shot.Yes. I agree with him.
It's pretty clear that he's wrong about the flag.Please try not to dismiss it because you have labelled the author unfavourably. Address the arguments.
https://forum.cosmoquest.org/showth...pollo-footage-was-filmed-in-air-here-on-earth
It starts moving before the astronaut gets close enough to touch it.
Anyway, Betamax agrees with Jay Windley on the dust-free sand issue so he has no credibility either.
Any seventh-grader could tell you that it wouldn't cause enough friction to create enough dust to cause a dust cloud when the sand is driven over. It would take a gang of men hitting the sand with sledgehammers for several days straight to create that much dust. Your credibility is shot.Large grained dust free sand is effectively gravel. Putting it in a dump truck and transporting it and dumping it would create dust, because the act of dumping it in, transporting it over a bumpy road and dumping it would cause a lot of friction, and that friction would generate small fragments (dust.) Not erosion, friction.
So the question doesn't make sense to begin with. If you started out with dust-free large grained sand (or gravel) and transported it you wouldn't end _up_ with dust free large grained sand.