By using two propellers that rotate in opposite directions, a ship can use less energy to move forward. New knowledge means ...

A boat’s propeller is one of its most crucial components, yet it’s often overlooked until problems arise. Proper maintenance ...

According to the Division of Wildlife Resources (DWR), they have been able to prevent the spread of aquatic invasive species ...

The physics of mixing water layers — an interplay of wind, climate and more — makes lakes work. When it stops, impacts can ...