I have a new iPhone. You know I am going to use this for both videos and images that can be analyzed. It's just what I do. So, before I need it I am going to measure the angular field of view for this ...
This is one of my favorite stories. In short, one of John Burk's (@occam98) students wanted to launch a space balloon. If you want all the details, this post at Quantum Progress pretty much says it ...