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 ...

While they don’t give the physical thrill of a real one, model roller coasters are always fun to watch. However, they actually make a poor analog of a full-sized ride, as gravitational force and ...

It was an unconventional DIY project, but that didn’t stop a Northern Virginia teen from fulfilling a dream he’s had since a young child. He successfully built his own roller coaster in his back yard.