At first the only occupants of the Mauch Chunk Railway were the coal and mules to haul the carts back up. Soon, people got the ingenuous idea that one could use these systems as recreational rides for people. These rides were going faster than 100 miles an hour on 40 mile long tracks, faster and longer than any modern version and almost as safe. In 1870 the coal miners started using steam engines and underground tunnels leaving the Mauch Chunk Railway to the tourists. Eventually a hotel and restaurant were built on the top of the mountain so that people could relax and get a meal before their ride down.
Personal transportation is truly a marvel of the twentieth century. . .
Roller coasters can exert G forces greater than one. . . Virtual images are superimposed on views of the real world. . . A feeling that many describe as one similar to flying . . . A bar code is a printed series of parallel modules . . . It plays a crucial role in the operation of computers . . .