Private households are increasingly connecting to the Internet via optical fiber networks, whose bandwidth is suitable for delivering on-demand video. The fibers of the network transmit light ...

Rivers can respond to local surface uplift or depositional blockage by incision of a narrow channel, but the resulting gorges are often temporary features. Although fluvial downcutting, channel ...

On the move: a droplet that has propelled itself in a channel made from two clamped coverslips. (Courtesy: F Box/University of Oxford) Droplets of both oil and water will move along specialized narrow ...