Tag Archives: problem

Hillary Clinton’s Other E-mail Problem

This has nothing to do with those other e-mails tied to Hillary Clinton — the ones which have recently been under official investigation, and in the news. It’s a completely different thing: e-mails sent out by her campaign for the White … Continue reading

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An Asymmetrical Static Equilibrium Physics Problem Involving Pulleys and Hanging Masses

An interesting phenomenon in physics, and physics education, is the simplicity of symmetric situations, compared to the complexity of similar situations which are, instead, asymmetrical. Students generally learn the symmetrical versions first, such as this static equilibrium problem, with the … Continue reading

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A Logic Problem Involving Marvel Super-Heroes

Iron Man, Daredevil, Spider-Man, Captain America, and Wolverine each have a favorite food, a favorite beverage, own one pet, and have a single hobby. Based on the clues which follow, find out these things: Which hero’s favorite food is (A) … Continue reading

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Circumparabolic Regions Inside a Unit Circle

A circumparabolic region is found between a circle and a parabola, with the circle being chosen to include the vertex and x-intercepts of the parabola used, with the circle, to define the two circumparabolic regions for a given parabola-circle pair. … Continue reading

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Geometry Problem Involving Two Circles (See Comments for Solution)

This is a puzzle I made up not long ago. After trying to solve it for a bit (no success yet, but I haven’t given up), I decided to share the fun. A small circle of radius r is centered … Continue reading

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Richard Feynman, on Solving New Problems

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The Cone Problem (The Easier Sequel to the Hemisphere Problem)

That hemisphere problem (see previous two posts) was quite difficult. I’m going to unwind a  bit with the much easier cone version of the same problem: at what height x above the ground, expressed as a fraction of h, must … Continue reading

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