And it was Koechlin who sketched the original concept of the Eiffel Tower, drawing from his training in visualizing forces. The same tools that Culmann developed and used to understand bone were ...

Now you’re staring up at the Eiffel Tower as its lights twinkle and dance in the night sky. But before you pull out your phone to snap a photo of the view, you may want to grab a passing Parisian and ...