When bacteria band together, they can turn a fairly tame drop of water into a swirling vortex. The swirl is spun up by the bacteria’s tail-like flagella and the basic physics of how fluids flow, ...

Step inside the strange world of a superfluid, a liquid that can flow endlessly without friction, defying the common-sense ...

Step inside the strange world of a superfluid, a liquid that can flow endlessly without friction, defying the common-sense rules we experience every ...

Short pulses from a laser can be twisted into a series of doughnut-like vortices, offering a way to transmit more information using light. We usually encounter vortices in water and air, but similar ...

HYDRODYNAMICS Busy as they are sending a man to the fringes of space and the to bottom of the sea, routing disease and building bigger and better nuclear bombs. 20th centry scientists still find time ...