I propose the following experiment: For varying values of r, cut discs of radius r out of the kale. Then measure the area A (or, equivalently, weigh them, assuming kale is of uniform thickness and density). You are looking for a relationship of the following form: A = 2 pi s^2 (cosh(r/s) - 1) where s is the characteristic length-scale of kale (and, I believe, the reciprocal of the absolute value of the curvature). Sincerely, Adam P. Goucher
----- Original Message ----- From: Fred Lunnon Sent: 04/10/14 04:04 AM To: math-fun Subject: Re: [math-fun] Kale
Jim, stop playing with your food, and eat up your greens! WFL
On 4/10/14, James Propp <jamespropp@gmail.com> wrote:
Does kale have constant (negative) curvature?
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