For exampleRotational (rotation)An ambigram called a type is designed to allow letters that should not be read unless they are in the correct orientation to be read from different directions. The ...
Douglas Hofstadter is probably best known as the author of Gödel, Escher Bach, a classic of popular science writing published in 1979. In 1983, he coined the word “ambigram”, meaning a piece of text ...
I've been a bit lax with blog posts recently since I've been finishing off my next book, a follow-up to Alex's Adventures in Numberland and Here's Looking at Euclid, due out in 2014. The publishing ...
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