Up! Up! And Away!

This past week, I was talking to a parent of a very creative and energetic kiddo who takes a fitness class with me, and we started talking about the adventurous and funny movie Up.  She sent me this picture of her son's homemade Up house with balloons and a tissue box and I thought this was way to cute not share with all of you. So, I started wondering, how many helium balloons would it take to lift an adult or child, because this would be a really sweet way to fly.  After some research and careful calculations, I've determined for a 40lb child it would take about 142 balloons.  Now that would be a fun way to get to school!