Jay-qu Posted November 5, 2005 Report Share Posted November 5, 2005 Yes..and...? Take your virtual sphere & populate its surface with protuberences. In so doing, you have inadvertantly populated it with dimples, which lie between & under the protuberences. Now do the opposite; start with the virtual smooth sphere & populate it with dimples. Voila, automatic protuberences. :hihi: But there is a slight difference... in option A you end up with convex protuberences and in option B you have concave dimples... think about it they look different :cup: Quote Link to comment Share on other sites More sharing options...
Jay-qu Posted November 5, 2005 Report Share Posted November 5, 2005 Is a zebra white with black stripes, or black with white stripes?:hihi: white with black stripes, owing to the fact that their bellies and the insides of their legs are purely white :cup: Quote Link to comment Share on other sites More sharing options...
Boerseun Posted November 5, 2005 Report Share Posted November 5, 2005 white with black stripes, owing to the fact that their bellies and the insides of their legs are purely white :hihi:Then again' I'd say black with white stripes, seeing as the insides of their ears are pure black...:cup: Quote Link to comment Share on other sites More sharing options...
Turtle Posted November 5, 2005 Report Share Posted November 5, 2005 But there is a slight difference... in option A you end up with convex protuberences and in option B you have concave dimples... think about it they look different :cup: ___The point is that the inside of a convex protuberence is a concave dimple. I believe there is a difference - a boundary if you will - where for our golf-ball & hailstone examples, the drag starts increasing rather than decreasing. If the dimple depth/protuberence height ratio is at some 'low' level you get low drag far flying balls; if the ratio is large, you get high drag short flying balls. :hihi: Quote Link to comment Share on other sites More sharing options...
Turtle Posted November 5, 2005 Report Share Posted November 5, 2005 Is a zebra white with black stripes, or black with white stripes?:cup: ___If you shave a Zebra, other than an angry Zebra, what do you see? I only ask as I recently heard that not only do Tigers have striped fur, they have striped skin. :hihi: Quote Link to comment Share on other sites More sharing options...
Jay-qu Posted November 5, 2005 Report Share Posted November 5, 2005 Then again' I'd say black with white stripes, seeing as the insides of their ears are pure black...:cup: the inside of their ears isnt black... unless you count the fact it would be dark and hence black without a torch light :hihi: Quote Link to comment Share on other sites More sharing options...
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