Some time ago there was this Science  cover plainly announcing that one of the famous and long standing problems - Poincare conjecture is ...

It was last Tuesday when there was an interesting sounding talk "Building  Rome in a Day" in the afternoon. I wanted to go but ins...

This is my favorite time to walk on Cornell campus. Cherries on a path by Olin Library do not stay in bloom for long, I always try not to mi...