One of the first “roller-coaster” rides in the U.S. was actually a short coal railway in Pennsylvania that hauled coal downhill between mines and used mules to bring the empty cars back up the hill.

Roller coasters rely on two types of energy to operate: gravitational potential energy and kinetic energy. Gravitational potential energy is the energy an object has stored because of its mass and its ...

Bring the excitement of a theme park into your home by building a marble roller coaster. Bring the excitement of an amusement park into your home by building a marble roller coaster. The motion of ...

In this edition of "A World of Difference," Korey Kiepert, owner and engineer with The Gravity Group, goes through the 8 main types of roller coasters and breaks down how they work as well as the ...