Math Photo: Cylindrical Perspective

Published by MrHonner on


I like the apparent nesting of concentric circles that appears when looking down a long cylindrical pipe.  I wonder if it’s possible to find the angle between my sight-line and the central axis of the cylinder by comparing the centers of the various circles?


Categories: Photography


Jerome Dancis · May 11, 2014 at 10:06 am

Can one estimate the length of the pipe or the ratio of length to diameter from measurements on the photo?

Curmudgeon · May 11, 2014 at 11:04 am

Scheduled for the 15th May

Curmudgeon · May 11, 2014 at 12:21 pm


Heather Berry · May 21, 2014 at 7:48 pm

cool question. By the way, it looks like the clapper inside a handbell. i love handbells.

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