If you’re making a tour of the United States’ national parks, one you shouldn’t miss is the Gettysburg National Military Park, a park and museum that commemorates, at fifty-one thousand casualties, one of the deadliest battles of the Civil War, when the Union won over Robert E. Lee’s second and most ambitious try at invading [...]

One of the many contributions that Benjamin Franklin made throughout his life was to the use of wood burning stoves and fireplaces.  He discovered that when a fireplace is put on the wall of a house, a wall that is an outside wall, with no other rooms behind it, that much of the heat the [...]