Math Photo: Pothole Pentagon
I’ve read that there are over 500,000 manhole covers in New York City, but I’d never noticed these pentagonal bolts before. A nice mathematical surprise among the grit and grime.
I’ve read that there are over 500,000 manhole covers in New York City, but I’d never noticed these pentagonal bolts before. A nice mathematical surprise among the grit and grime.
5 Comments
Chris Harrow · September 7, 2014 at 1:22 pm