Although at the moment my pool is frozen during the summer it is buckets of fun. regardless of the fact that it is only 4 feet deep we still jump in, but no diving. If no one enters my pool for a little bit you can see how smooth the surface of the water can be. But then when someone abruptly drops something in or even jumps into the pool you can watch as the waves slowly take over the pools calm surface. If we had the proper tools we would be able to measure the speed of these waves. All we would need is the distance from one peak to another and its frequency. Frequency could be calculated if we find the period it takes for one wave to pass and then outing it under one.