William Pickard developed an elegant analytical solution to describe low-Reynolds-number flow in long cylindrical cells. This setup resembles the classic Couette flow, but in this case, the velocity depends on the angle and the radial position (normalized by the cell radius) buff.ly/RcuIAyW

It's #FluidsFriday, and we're featuring another sample from the hydrodramatic toy collection. A rising Taylor bubble generates a swirling flow inside a sealed cylindrical tube.

Roses don’t just defend themselves. Their prickles are geometrically ideal for gripping surfaces, supporting vertical growth, and, when needed, creating lacerations that deter herbivores. Students - join us to investigate how biological form and physical law work together!

So much of our daily lives involves fluids moving from one place to another. It's great when it works. But sometimes it fails. A leak appears. A drop gets through. And then another.