This is a digitized version of an article from The Times’s print archive, before the start of online publication in 1996. To preserve these articles as they originally appeared, The Times does not ...

For nearly a year, in the course of producing the NOVA documentary "Trapped in an Elevator," I've been immersed in the fascinating lore of perhaps the least appreciated—but arguably most critical—form ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American 2013 marks 160 years since Elisha Graves Otis ...