HOW MUCH YOU NEED TO EXPECT YOU'LL PAY FOR A GOOD GALAXY RING

Material energy is a potential showstopper for the Ringworld. Because of its bulk, the megastructure will be subjected to mechanical stresses violent ample to interrupt any regarded physical molecular bonds. "The Ring should be superstrong," Sandberg says. "Mere molecular bonds is not going to do." For super-power, the most effective would bet migh