Nanoparticulate flow in a curved pipe differs to that in a straight pipe, and is of scientific and technological interest.

New technique offers dramatic improvements in throughput and cost compared with more established techniques.

As an antidote to obsessing about contemporary politics, I have been thinking about gravity. This is a good time to do so as our Cassini-Huygens probe is whirling around Saturn taking spectacular pictures and the Messenger rocket has just set out on its 41-month voyage to Mercury.

One day, astronauts might travel through the solar system onboard spinning spaceships. Can human brains adapt? Science@NASA -- Next time you go to a playground, try this: Bring along a ball and a friend, and get on the merry-go-round.