The 1,000-footer would be twice as tall as any coaster ever built and smash a new record for world’s tallest coaster, about to be set in 2025. Six Flags announced in November that its 456-foot ...

The roller coaster has its origins in St ... when riders went around in a circle, they were subjected to a force of some 12 Gs--enough to cause blackouts even in fighter pilots.

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 ...