Riddle Me This

with six shelves of his publications           Colm Mulcahy

The prolific polymath Martin Gardner would be 100 this week, were he still with us. He is not, but fortunately for the world, his puzzles always will be. The man who gave us that mind-bender about how to ask the truthful alien and the lying alien which road to take had myriad tricks up his sleeve, including flexagons, fractals, and Penrose tiles (story, puzzles, links to video and activities): http://www.bbc.com/news/magazine-29688355
   Here's an excerpt from David Suzuki's The Nature of Things that focuses on Gardner (video): http://vimeo.com/7176521