On this day in 1735, John Adams was born. A powerful voice whose words and actions helped spark a revolution. Learn more when The American Revolution, a film by Ken Burns, Sarah Botstein and David Schmidt, premieres Sun, Nov 16. | PBS

What the heck is a dragline, and how do they work? We’re back with North American Coal to tour one of their massive draglines. These machines are the largest earthmovers in America, capable of moving well over 100,000 cubic yards of material per day. | Aaron Witt