'Coastline' Wave Pool

Approaching the wave pool sculpture outside the National Oceanic and Atmospheric Administration (NOAA) headquarters in Silver Spring, Maryland, you will see waves crashing against rough-cut granite, rhythmic and mesmerizing, in various levels of ferocity and grace. 

What most people don't realize is this sculpture, called "Coastline," is much more amazing than its appearance lets on. These aren't just random waves, but rather are generated from real-time wave measurement data transmitted from the Massachusetts seacoast to instantly recreate the exact ocean waves along a 65-foot section of the Atlantic coast.

When the artist Jim Sanborn created this wonderful wave pool in 1993, he connected it remotely to a sensor on the coastline. The artificial waves are generated by a turbine under the sculpture, while their movement is controlled by the data transmitted from the tide gauge in the town of Woods Hole, Massachusetts. The effect is a precise, real-time replica of the Atlantic surf (at one-fourth the size) right outside the NOAA Science Center. 

Many locals walk their dogs past the fountain, eat their lunches on one of the benches, or use it at a convenient meeting place after work, but few casual observers realize the remarkable secret science behind its rolling waves.