If you pull straight back on the lower pedal of your bicycle, will the bike move forward or backward? This classic puzzle has a surprising twist.

# Search Results for: "mathematical impressions"

### Mathematical Impressions: Change Ringing

Change ringing, in which a band of ringers plays long sequences of permutations on a set of peal bells, is a little-known but surprisingly rich and beautiful acoustical application of mathematics.

### Mathematical Impressions: Art Imitates Math

The art exhibition at the annual Bridges Conference showcases a wide range of artworks inspired by mathematical thinking.

### Mathematical Impressions: Making Music With a Möbius Strip

Musical chords naturally inhabit certain topological spaces, which show the possible paths that a composer can use to move between chords.

### Mathematical Impressions: Goldberg Polyhedra

Because of their aesthetic appeal, organic feel and easily understood structure, Goldberg polyhedra have a surprising number of applications ranging from golf-ball dimple patterns to nuclear-particle detector arrays.