The process of sublimation is the transformation of a solid substance into a gaseous phase without first traversing through a liquid phase. Typically, when solid matter changes its physical state as it is heated, it first becomes a liquid. Then as more...

The transition of molecules from the solid phase into the vapor (or gas) phase is called sublimation. At temperatures below the freezing point of a substance, the transition between solid and liquid phases (melting) does not generally occur. However,...

The most striking photograph included in All the Mighty World: The Photographs of Roger Fenton, 1852-1860, an exhibition on display in the Robert Lehman Wing of the Metropolitan Museum of Art, is neither the best thing in the British photographer’s oeuvre nor the most beautiful....

One of the great pleasures of writing this column is to be proved wrong. A few years ago, I fretted about the demise of the piano recital. Conservatories were turning out keyboard virtuosos by the truckload, and the woods were full of competition winners who...

This is a book about age and regret. Since it’s by Nora Ephron, it’s funny. A funny book about loss is a puzzle, and it’s that puzzle that I, if not the author, tussle with in reading this delightful, maddening collection of personal essays whose...

This is a book about age and regret. Since it’s by Nora Ephron, it’s funny. A funny book about loss is a puzzle, and it’s that puzzle that I, if not the author, tussle with in reading this delightful, maddening collection of personal essays whose...