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.
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 Williamsport âLock Haven combined statistical area.ock Haven's economy, from the city's founding in 1833 until the end of the 19th century, depended heavily on natural resources, particularly timber, and on cheap transportation to eastern markets. Loggers used the Susquehanna River and Bald Eagle Creek to float timber to sawmills in Lock Haven and nearby towns.