h a l f b a k e r yI didn't say you were on to something, I said you were on something.
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Daring experienced skaters would race around the upper
edge region of this steep side cone shaped rink
uninterrupted,
whilst
clumsy novices would slide or tumble down to the
central
point out of the way every time they faltered or actually
fell over.
A small hatch at the central point
would act like a plug
hole in a sink to allow those defeated by the rink to
escape further pain and humiliations.
The whole shebang.
Parabolic_20Ice_20Park
[2 fries shy of a happy meal, Jan 08 2019]
[link]
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I imagine a drag-line style ski lift, starting at the middle and spiralling outwards, increasing in speed until it reaches the outer rim, whereupon riders let go, and orbit back down to the centre. Alternatively, after exiting through the plug hole, humans could be re-injected into the rink via a tangential entry slope. |
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I am rather curious as to the precise shape of those
circular charity coin collectors with the roughly
inverse-paraboloid cross-section that provide so
much entertainment as the coin rolls faster and
faster falling towards the hole/Sarlacc pit, whatever. |
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With this sort of shape, the daring would endure the
higher g's towards the center while the newbies
would be hugging the walls. |
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I once skated on a frozen flooded meadow. The water level had dropped slightly after the freeze so the ice was in the form of large shallow bowls. It was tricky getting out from the centre. |
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Unfortunately, it seems you succeeded. |
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A water main blew in the middle of winter by our place. It burst in six places before the storm was over and made six gigantic ice mushrooms all inter connected like a see-through blue vaulted cathedral. The water on the ground had frozen into irregular step shapes like a topographical map and my brother and I got to skate it before anyone else had found it. Still remember how the light danced. |
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If the whole structure rotated sufficiently rapidly around its centre, it would become a sort of icy "wall of death". What with all the sharp ice skates, and people moving round at speed, any malfunction of the drive system would end horribly with the users plummeting helplessly down into the centre, no doubt causing multiple injuries if not deaths. |
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This really must be built. [+] |
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hmmm, have we done parabolic skating yet? Where the rink spins so that physics are the same as a stationary flat rink? |
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Dunno. Check around for blood and screaming. |
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Huh. Missed that one. [link] |
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There isn't any mention of death or serious injury in that idea, although maintaining the rotation is proposed in an annotation. This suggests that the parabola is fairly shallow, and the rotational forces proportionately modest. |
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It is therefore unsatisfactory in many respects. |
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We can fix that.
Scale up the rotation and curve so that a steep ramp is required to reach entry speed. |
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Exiting the rink without a ramp should provide much of the required mayhem. |
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