GPS distance calculator created by a group of students from Indiana University, built as a final project:
As sport fans, we thought it would be really useful to create a tool that would measure distance between two points. This could be used for many different sports, but we focused on golf. A handheld unit that could measure distance in yards from where a ball is hit and where it ends up is really what we were motivated to construct. Distance markers on golf courses are not always accurate and it is very important to know correct yardages to play well. This system could be used to keep track of the average distance for a certain club or to check the accuracy of yardage markers at the course.It works by recording latitude and longitude points of where the ball was hit from, and then calculate the distance from that location to wherever the ball lands.
Check out the video after the break.