Thanks! It occurs to me to ask: Is there a parametrization of the one-sheeted hyperboloid that makes it manifest that it's a ruled surface? And: Is there a parametrization that makes it manifest that it's a doubly-ruled surface? Jim On Tue, Nov 22, 2011 at 5:11 PM, Joshua Zucker <joshua.zucker@gmail.com>wrote:
The Exploratorium has this exhibit but I was only able to find still photos of it in my searches. They call it "Hyperbolic Slot". Then I found http://www.youtube.com/watch?v=OJGkdO9gcdY which isn't gerat but should suffice.
--Joshua Zucker
On Tue, Nov 22, 2011 at 1:58 PM, James Propp <jamespropp@gmail.com> wrote:
Is there a video on the web of a line segment passing through a hyperbola-shaped slit, as in the Eames Mathematica exhibit (and probably other math museum exhibits as well)?
I want to show this to my calculus students tomorrow, and was astonished that I couldn't find it on the web even after several minutes of searching ("... Eames ruled surface hyperbola ...".
Thanks,
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