the name of that roller coaster is called viper. it is located in six flags magic mountain
it is something you cant see but know and one place where could find it is on a roller-coaster
Personally a drop.
by it being big
Quantum Loop, at Seabreeze Park in NY
the first roller coaster was at connie island but it was a one loop ride. It often caused a harsh whiplash to the rider.
The world's first roller coaster with inversions is Corkscrew at Knott's Berry Farm. The world's first roller coaster with a loop is Revolution at Six Flags Magic Mountain.
The roller coaster at Circus Circus is a double corkscrew, double loop ride, set indoors.
centrifical force
A roller coaster entering a loop experiences a centripetal force, which is exerted by the track.
The first successful coaster with a vertical loop is Revolution at Six Flags Magic Mountain. It opened May 8th, 1976.
The Tiger & Turtle is a roller-coaster at Magic Mountain Germany. It has steps and slopes that are climbed with human power - in other words, you walk on it. It is a 69-foot roller coaster, which puts the visitor 148 feet above the surrounding countryside of Duisbu, Germany. There is an upside-down loop on the coaster, but you can't actually walk on that part.
to maintain it's balance in a circle way...and to maintain the safetiness of everyone....