Hi there! I'm doing research for computer science and I have to simulate wind movement. Obviously, I need to know stuff about wind movement. I've tried several books and they haven't given me what I want. Most books have the whole "how do we make this airplane go fast" thing going on. My project is more on "why does a flag wave in wind?", "why does hair wave in wind?", "why does a blade of grass move back and forth in wind?". I haven't been able to get any answers. (From my understanding, if you apply a force on something...it'll go that way :uhh: Like if I push against a book, it'll move that way. Why does wind make something go back and forth?) I like physics, but I'm not a big physics person, so go easy on me here if I'm missing something.