Add Yahoo as a preferred source to see more of our stories on Google. Sharrow Marine makes a propeller based on loops that's designed to reduce noise and increase efficiency.Sharrow Marine The ...

Over the years the Hydrex R&D department has continuously improved underwater repair techniques to make it possible for Hydrex diver/technicians to perform permanent repairs on seals, thrusters, ...

The submarine's propeller is what moves the boat through the water, but it also serves another very important role, which is ...

Hydrex diver/technicians straighten the propeller blades of a large container ship moored off Diego Garcia in the Indian Ocean With all five blades of its propeller severely bent, a 290-meter ...

If “underwater scooters” become the next big thing, then Sublue has it covered. The company is introducing its latest compact product, the Sublue MixPro, which has two propellers to pull you along ...

Just when you think you’ve seen all the gorgeous helices in the world, here comes another one. This one trails behind propellers underwater. What causes this helical structure to form? And why is it a ...

Imagine you're a whale. You spend your entire life in the open water. You can see well enough, but you mostly listen. Songs of other whales help you communicate and travel with your pod. Rhythmic ...