if there is very little gravity on the moon, why would any dust stay on the surface? If a human can bounce of the ground, and dust is lighter than a human, it would have floated elsewhere, right?
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Less gravity is still some gravity. The moon (on the surface) has an escape velocity of 2.4 km/s, which applies to dust just as much as it applies to lunar landers.
You've seen the astronauts 'bouncing off the ground' as you put it, no?
Fundies and facts, its like the Coyote and anvils.
Ehh . . . without looking at other posts, I can't say if Jess is a fundie or not. Seems to me he/she just doesn't have a good grasp of how gravity works.did float elsewhere, leaving the moon airless. People and pebbles bounce higher on the moon, but they still come back down. Unlike, say, Phobos (one of the Martian moons) where even the tiniest nudge would send a pebble straight off the moon and into its own orbit around Mars.
Irene
"if there is very little gravity on the moon, why would any dust stay on the surface?"It is true that there is less gravity on the moon, but that does not mean there is NO gravity. It doesn't require much gravity to retain dust when there is no wind.
"If a human can bounce of the ground, and dust is lighter than a human, it would have floated elsewhere, right?"
Yes, but dust is not jumping. If something such as a meteor impact throws the dust up with enough force, some of it will be lost to space.
Jess is one clever girl, judging by her name. Although I would think that other fundies might consider it blastphemous. Unfortunately, thinking up clever names for herself eats up all the time she could have spent learning.
Confused?
So were we! You can find all of this, and more, on Fundies Say the Darndest Things!
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