It must be nice to be able to command or tame the laws of gravity.

A single fly landing on my nose would bring death.

I would love to have a sense of scale... How high are these 'cliffs'? Knee high?

Of course on a comet, gravity would be so light you easily might be able to bound from bottom to top even if they're as high as the Grand Canyon. You might even jump off altogether.

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in space? I think gravity is the primary instigator here, so in space you'd need to do this under intense acceleration or in a centrifuge to get similar results. it's just taking a really long awkward way to fall:)

I would be interested to see what would happen just before the disk stopped and suddenly there was no gravity. Even though it sounds like it's spinning faster I'm sure it's just because the edge of the disk is just closer to the mirror.

Suddenly without gravity would the energy cause the disk to rotate making it look like a ball floating in space or would it wobble and take off in one direction?

Could this even be done in space?

Are there any mathematicians in the audience tonight?

Are four questions in a row too much?

I'm going out on limb here but, I hold gravity responsible.

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I've tried to make the argument that aliens couldn't have possibly crashed on Earth, and that the whole idea is insane. So advanced aliens managed to acquire sufficient expertise at space travel to actually cross the unimaginably vast gulfs between stars, but they haven't figured out how planets and gravity work?

Maybe I should just give UFO believers copies of Sagan's "The Demon-Haunted World" and tell them I'm willing to discuss after they read it.

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I must disagree.

First, it's precession, not procession, paired with the "caster effect" and static friction. It's a self correcting system that only works when in forward motion.
This nonsense with counter rotating wheels countering the gyroscopic effect ignores the fact that only the forward rotating wheels are using friction to direct the path of the bicycle based on their angles. It's not JUST the gyroscopic effect, that only determines the resistance to angular change, it's friction directed by gyroscopic precession and the self correcting caster effect. Come on.

Nobody knows how we ride bikes?! (A different claim from we don't know why they can remain upright when ghost ridden) Nonsense, it's balance plain and simple. If you don't keep the center of gravity exactly above the contact points with the ground, you tilt. When the centrifugal force exceeds static friction of the tires you slide out or when gravity exceeds the opposing centrifugal force caused by turning, you fall. Try turning your bike but staying exactly upright, no lean. Now, when you heal, try leaning without turning, lock the wheel straight, you'll fall again. It's multiple forces in concert.

I think a decent physics teacher would wipe the floor with this. It ignores so much to make these "we just don't know" claims.

Gravity. It calls us all back to the earth. R.I.P. piece of bread.

Oh wow, for her to say she's really starting to feel the gravity of what Covid means because she can't taste her damn chocolate peanut butter cups does not say a lot about kid's awareness at that age.

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I wonder how gravity waves factor in to this explanation.