Mathematics, Magic and Mystery. Cast-iron cooks evenly and allows foods like steak to release easily but leave just enough browned bits on the surface of the skillet to flavor a sauce made in the pan. This happens because the original strip only has one edge that is twice as long as the original strip. Under the usual embeddings of the strip in Euclidean space, as above, the boundary is not a true circle. This method works in principle, but becomes impractical after sufficiently many folds, if paper is used. Topology Recreational mathematics Surfaces. It may be constructed as a surface of constant positive, negative, or zero Gaussian curvature.
Never, ever use a cheap, thin metal pan—unless you like your steak burned.
Double Check Do you really want to delete the list,? Finally, a beautifully marbled USDA prime grade steak needs nothing more than salt and pepper, but most steaks get just a little tastier with a little added something, which is why the recipes here include a spice rub, a pan sauce, and a flavored butter. Using normal paper, this construction can be folded flatwith all the layers of the paper in a single plane, but mathematically, whether this is possible without stretching the surface of the rectangle is not clear. Right before you add the steaks to the pan season with pepper and more salt if desired. Notify me of follow-up comments by email. The real projective plane, like the Klein bottle, cannot be embedded in three-dimensions without self-intersections. Ask for center-cut filets, rather than ones from the tail or head; 6 to 8 oz.