Flying several thousand feet above the Pacific Ocean, an air crew and a scientist from Woods Hole Oceanographic Institution tossed cylindrical floats from a U.S. Marine Corps MV-22 Osprey aircraft. Packed with data-gathering sensors to measure underwater conditions, the floats fell fast before orange parachutes opened to ease splashdown.
Click here for original story, U.S. Marines use sensor buoys to better understand ocean battlespace
Source: Phys.org