Compressible fluid dynamics investigates the behaviour of fluids when variations in density cannot be neglected, a scenario frequently encountered in high-speed aerodynamics and astrophysical ...

Knots are everywhere—from tangled headphones to DNA strands packed inside viruses—but how an isolated filament can knot itself without collisions or external agitation has remained a longstanding ...

When they reach the bottom of a soap dispenser, frugal handwashers might try adding water to the bottle to push out the last ...

From ketchup to quicksand, non-Newtonian fluids have long fascinated and puzzled scientists. Unlike ordinary fluids, their flow properties change depending on how much force is applied, but the ...

YOU may think that complex equations and alcohol don’t, or perhaps shouldn’t, mix. But make your favourite cocktail and you will unknowingly encounter some of the most complex processes in fluid ...

If you mix cornstarch and water in the right proportions, you get “oobleck”: something that seems not-quite-liquid but also not-quite-solid. Oobleck flows and settles like a liquid when untouched, but ...

Physics lies at the core of the earth sciences. It is essential for understanding the deep structure of Earth and the natural phenomena that affect Earth's surface, such as earthquakes and volcanic ...