When I see this star shape, I see it as two equilateral triangles meeting at a 60 degree angle. So it’s sort of a hexagon.
Appreciation Numbers
12102011
It’s been a fun few months for calendar math. Today is another Permutation Day: the month and day can be rearranged to form the year!
It certainly isn’t as exciting as the recent palindrome day, but it does make writing the date a little more fun!
Appreciation
Pythagorean Pridefulness
I needed to purchase a small storage bin to hold my loose assortment of biking paraphernalia. Since most of the stuff is small–patches, wrenches, portable lights, and the like–the only potentially problematic piece was my portable bike pump. Whatever box I bought would have to be able to hold this long, thin cylinder.
I briefly considered planning ahead by taking some measurements before my trip to Target. “It isn’t necessary,” I thought to myself. “I’m very familiar with the Pythagorean Theorem. I should easily be able to identify and purchase a prism whose longest diagonal more than meets my needs.”
So now I must live with a un-closeable box until I feel I have learned my lesson.
Application Geometry
48,647th St and 16,398th Ave
This is a fun and whimsical mathematical application: an extension of the Manhattan grid systems to every location on Earth!
Find Brasilia at South 39,688 St and East 25,424 Ave, Bangalore at 84,097 St and East 77,224 Ave, or Bora Bora at the corner of 41,214 Ave and S 69,342 St.
I wonder how much the cab fare would be from midtown Manhattan to South 43,892 St and East 71,247 Ave?
Appreciation Photography
Math Photo: Parabolic Shadow
The sun did funny things to this lamppost. Not exactly parabolic, but pretty close!
Yet another parabola in nature! Close enough, anyway.