But after you rotate them, water flows from the upper bottle into the lower one and a water vortex is created. The water doesn’t flow by itself from the upper bottle into the lower one. The surface ...

They employed particle image velocimetry to visualize water flow dynamics. Their results revealed that during underwater undulatory swimming, the vortex structure in the down-kick-to-up-kick ...

This will cause a spin in the flow on either side ... above the water. That mountain peak serves as the perfect object to generate the vortex streets on prevailing northerly winds.

The alternate shedding of vortices produces an alternating lift force ... and this region is often called a ``dead-water'' region. Similar flow patterns are observed downstream of pylons supporting a ...

Supersolids are materials that challenge both logic and expectations. At first glance, a supersolid appears to be a typical solid due to its rigid crystalline structure. ... Continue Reading → ...

Researchers have developed a small underwater robot that moves more efficiently by using the energy in water currents. Instead of fighting against the flow, this robot “surfs” on water movements to ...

We suspect the latter reason is what got [Brick Technology] to pursue creating a trippy water vortex with the building ... creating more complicated vortexes and flow patterns.