Scientists devise way to relay sound signals under water
Engineers use ocean channel to efficiently relay sound
First impressions of my first research cruise
Did dispersants help microbes break down oil?
Instrument may also help monitor sewage treatment plants
Marine biologist Greg Skomal and engineer Amy Kukulya discuss the importance of sharks in the ecosystem, the threats they are under, and how new technology--the SharkCam, is helping researchers learn more about these top predators. (Woods Hole Oceanographic Institution)