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The Hatchet Planimeter and its Entrails

Fast Talk
Tuesday, February 18, 2014
4:30 PM
Olin 114

Dr. Andrew Gard, Visiting Professor of Mathematics at Ohio Wesleyan University will present the departments' first Fast Talk of the semester on Tuesday, February 18 at 4:30 p.m. in Olin 114.

The hatchet planimeter is an antique device shaped essentially like a miniature axe and including no moving parts which was used to measure areas of plane regions, particularly those whose boundary equations were not explicitly known, as in the field of cartography. The mathematics underlying this device is surprisingly rich; we'll investigate it from several perspectives, from vector calculus to hyperbolic geometry.

Posted Date 
Thursday, February 13, 2014