Map for Physics Walking Tour of Albany, NY 

If you're in Albany, New York, USA, and have any interest at all in technology, it would be a shame to skip the short walk over to the "Birthplace of Modern Electricity," as the New York State Education Department calls the Old Albany Academy Building, where Joseph Henry, a titan of 19th-century physics, conducted his epochal investigations into magnetism. The life story of Joseph Henry is inspiring, fascinating, and, insofar as he was a white man of the 19th century, a little depressing, too.

Albany is also the birthplace of M. N. Rosenbluth (1927-2003), recipient of the National Medal of Science and key figure in the development of fusion energy. Should fusion ever fulfill its promise by becoming an important source of energy for our technological civilization, Albany's place in the history of modern electricity will grow even more important.

But that's not all! With General Electric in Schenectady just a few miles away, Albany claims two great stories about giants of 20th-century physics Hans Bethe and Richard Feynman, who worked at GE after World War II. 

Physicist Hans Bethe, who later received the Nobel Prize, performed a groundbreaking calculation to initiate a new era in the field of quantum electrodynamics in 1947 on a train from a conference on Shelter Island to his home in Schenectady. On this memorable journey, his train would have stopped at the now-defunct Union Station at 575 Broadway in Albany. Here is Hans Bethe talking about the calculation. Here is my take on naming things for physics heroes in Tech Valley.