Don't Panic Geocast

This week we’re petrified.. petrified wood that is. Learn what it is and how it’s made - then we tie it all up with a fun paper about mathematical ways to tie neckties. AVE Clear Wood Wiki Petrified Wood Petrified Forest Fun Paper Friday How many ways are there to tie a necktie? Find out in this week’s fun paper! Fink, Thomas M., and Yong Mao. “Designing tie knots by random walks.” Nature 398.6722 (1999): 31.