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.
History & Heritage in Mill Hall PA. 4 results total. Javascript is required to view this map. Lock Haven, the county seat, is a city in Clinton County located in northern Pennsylvania 24 miles southwest of Williamsport. The Lock Haven University is located here. Established in 1833, the... Heisey Museum tour takes 1 1/2 hours, giving you a glimpse into Clinton County's past.