Spectral lines: Some of us don´t quit

The other day I stopped by to visit with Arthur Reynders, a long-time member of IEEE. Mr. Reynders was in his shop, carefully fitting the mitred corners of a picture frame he was making ¿to order¿ for a friend. He is in official retirement now, living in Heritage Hall in Agawam, Massachusetts. He seems much busier than most of his colleagues in residence, having commandeered a utility room to set up a respectably equipped shop, complete with power drill press, grinder, a broad array of hand tools, and some ingenious multipurpose jigs and fixtures of his own design.