People have always wanted to fly like birds, and many of our forefathers tried to invent something that could make the human fly. Many of the inventions didn’t bring necessary results and now people may fly using only some of the devices, like plains or helicopters. Radicals use alcohol and other “secrets” to fly 🙂 And these nice pictures below show how birds do it– so easily, they are absolutely free. So look and envy 🙂
