Maglev trains, a fusion of “magnetic” and “levitation,” utilize magnetism to offer a fast and smooth railway service. Instead of wheels, these trains have special electromagnetic systems ＿＿（41）＿＿ them up and move them forward. They zoom along the tracks at incredible speeds, far exceeding those of traditional trains. They can achieve speeds above 300 miles per hour, ＿＿（42）＿＿ bullet trains usually go around 200 miles per hour. What makes maglev trains special is that they don’t touch the ground, so there is no friction, which means they can go extremely fast without any ＿＿（43）＿＿ . Right now, there are only a limited number of these amazing trains in ＿＿（44）＿＿ , but they are expected to become more popular in the future. They operate quietly, are cost-effective to maintain, and produce minimal pollution ＿＿（45）＿＿ to certain other types of trains. In fact, it is predicted that they may be even as popular as air transportation one day!