GI. Mrs Perkins’ Electric Quilt

October 21, 2009 · Podcasts, The Mathcast, calculusey stuff, guests · Permalink

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Paul Nahin discusses his fabulous new book “Mrs Perkins Electric Quilt“, mosquitos, falling through the Earth, whether mathematics is “real” and much more!

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1 Comment »

Stephen Morris said,

October 21, 2009 at 6:58 pm

It is very neat that it takes the same time to fall from one place on the earth to any other point. I hadn’t come across that before.

Galileo came up with something similar, the time it takes for a bead to fall along a rod from the top of a circle to any point on the circle is the same.