This is a fun little website that offers information on numbers from 1 to 1000000:
For example, I put in one of my favorite numbers, 144, and saw four ways to write 144 as a difference of squares (always a useful little trick) and five ways to write it as the sum of primes (in case we were trying to verify Goldbach’s conjecture).
I find the Mayan representation of 144 really cool, and the Roman Numeral representation will make this website handy for crossword puzzles!
The New York Times Magazine’s Year in Ideas is definitely one of my favorite reads of the year.
My personal recommendations are Perfect Parallel Parking and The Train That Never Stops. Would anyone believe that I’ve been thinking of this kind of train system for years?
My love of binder clips makes me appreciate this binder clip sphere even more.
This is another excellent installment of Math Monday at Make Magazine by George Hart, curator of the Museum of Mathematics.
You can find the instructions here.
This is a fancier version of a well-known Hans Rosling video showing correlations between life-expectancy and income across time periods and geographical regions.
http://www.youtube.com/watch?v=jbkSRLYSojo
It’s truly a beautiful representation, and it really helps make sense of a large set of multi-dimensional data.
The original version is a bit more academic in feel, but you can’t blame Rosling for going a little Hollywood here.
