The slide can be initially made as a circle. A hump is somewhere in the circle. When someone slides down the hump it mechanically propogates around the circle so as to keep the person at the rising side's point of inflection. Note: any piece of the slide is ever only moving up, down, or is still. So, it would look like this whip of a slide has been cracked, and someone is along for the ride.-- daseva, Apr 20 2007 Interesting choice of category.-- ye_river_xiv, Apr 21 2007 [admin: created new "Slide" category, moved it there. Wheee.]-- jutta, Apr 21 2007 I think I need a diagram.-- DrCurry, Apr 21 2007 Of this?-- bungston, Apr 21 2007 How would this work, though? Making it out of individual panels would hurt the rider (try hitting a screw on a waterslide), and you can't make the thing out of a flexible material like fabric or rubber, so what do you do?-- croissantz, Apr 21 2007 The gradient differences between panels at the point where the slider lays will be minimal. Bigger slides will yeild better results, but not too big for the sake of economy.-- daseva, Apr 21 2007 Individual plates could overlap in one direction. The slider would barely feel the lips. (+)-- 2 fries shy of a happy meal, Apr 21 2007 +...OK, I'll go, if I could go with you [2 fries]-- xandram, Apr 21 2007 care 2 double up?-- po, Apr 21 2007 Why not just have it as a flat circle (or ring), and tilt it to keep the person sliding (like rolling a marble around a plate)? I don't think you need a hump.-- MaxwellBuchanan, Apr 21 2007 I think you will need the gradient provided from a hump. If anything, it will maximize the amount of fun had by the slider. The marble/hoop idea would be fun, too, especially for really big hoops.-- daseva, Apr 22 2007 //I think you will need the gradient provided from a hump// No. Whatever gradient you get from a hump, you can get the same gradient more easily by tilting a flat circular plate.-- MaxwellBuchanan, Apr 22 2007 I'll get my trunks.-- 2 fries shy of a happy meal, Apr 23 2007 Not if the circle is too large, [MB].-- daseva, Apr 24 2007 //Not if the circle is too large// You have a point. Damn. [+]-- MaxwellBuchanan, Apr 25 2007 random, halfbakery