Description
"An English sentence like 'every whale is a mammal' transcribes directly into algebraic notation as '-W+M'. Similarly, its equivalent, 'no non-mammals are whales', transcribes directly as '-(+(-M)+W)'. Sentences that come ready made for direct transcription are called “Canonical”." – George Englebretsen, "Something to Reckon with: The Logic of Terms"
"Part of the charm of synthetic organic chemistry derives from the vastness of the intellectual landscape along several dimensions. First, there is the almost infinite variety and number of possible target structures that lurk in the darkness waiting to be made. Then, there is the vast body of organic reactions that serve to transform one…
Full description on the Flickr photo page.