Scott at Grey Matters posted the Martin Gardner documentary last week. It was awesome.
This week, he’s back with more, and this time it’s a veritable treasure-trove of Gardner goodness. An optical illusion from Gathering for Gardner, a book published by the group, and more.
I actually folded the PDF printout pattern into the dragon illusion here at the office over my lunch break. It looks complicated on the pattern, but comes together pretty quickly. Here’s the official video of what the illusion looks like: