Among other things, yes. A ringworld is a slice of a cylinder, and is flat; it rotates to give centrifugal gravity on the inside only. On the other hand a hoopworld is shaped like a donut; the planet is solid and massive, and you are held down by real gravity. To get an Earth-like gravity and a daily rotation rate of 24 hours the hoop must have a radius of 70,000 km, and the small radius must be 3000 km.
Here is a ringworld image I've made Please Register or Log in to view the hidden image! actually it's a Banks Orbital, which itself rotates once every 24 hours and is about 1.5 milion km in radius. http://www.orionsarm.com/civ/Banks_Orbitals.html
Most Powerful Jedi ever: Anakin Skywalker Please Register or Log in to view the hidden image! Please Register or Log in to view the hidden image! Please Register or Log in to view the hidden image!
He deserve to show off, he is the best force user ever! He is a Jedi Master in all but in name, and he is even on the concil at the age of 20, Luke holded a lightsaber for the first time when he is 20, big diffrence! Anakin Skywalker Rule!!!!
