Hi, Here's the deal, I'm in a high school advanced physics class, and I am doing a project for JSHS. Here's the Project; "Is it possible to measure the gravity coming from the parking lot to find the number of cars in the parking lot using an accelerometer?" I'm thinking that I need one with high sensitivity, just based on super sensitive scales, where blowing on one lightly would change the reading. What I need help with is; Do any of you think it is possible? The fact that I don't have an accelerometer isn't helping either.... If anyone could help me out i'd be really really really grateful. Thank you for your time!