As with other forms of electromagnetic radiation, X-rays can be described as coupled waves of electric and magnetic fields traveling at the speed of light (about 300,000 km, or 186,000 miles, per second).
Lock Haven, Pennsylvania. The city of Lock Haven is the county seat of Clinton County, in the U.S. state of Pennsylvania. Located near the confluence of the West Branch Susquehanna River and Bald Eagle Creek, it is the principal city of the Lock Haven Micropolitan Statistical Area, itself part of the WilliamsportâLock Haven combined statistical area.
Pennsylvania Route 64 passes through the center of Mill Hall, also leading south through the water gap and ending to the north at Pennsylvania Route 150, which follows the northern boundary of the borough. Via PA 150 it is 3 miles (5 km) northeast to Lock Haven, the Clinton County seat.