Researchers at MIT have demonstrated that wedge-shaped vortex generators attached to a ship's hull can reduce drag by up to 7.5%, which reduces overall ship emissions and fuel expenses. The paper, ...

PITTSBURGH (KDKA) - You may have seen what is called a money vortex before. These are a type of bank that have a fun way to deposit money. You drop in a coin, and it spins down the funnel, picking up ...