"This motivated us to search for a new law that could work for any type of fluid moving at any rate through a pipe of any size." Flows of liquids and gasses through pipes, tubes, and ducts occur in ...

Under the right conditions, sand can flow. When heavier grains are placed atop lighter grains in a container, the less dense grains can burble upward like the blobs of a lava lamp, a study finds. The ...

Water makes up around 60% of the human body. More than half of this water is inside the cells that make up organs and tissues, and much of the remaining water flows in the spaces between cells. MIT ...