Move your computer screen right below eye level. This will cause your eyes to close slightly and minimize fluid evaporation while staying at the computer for long hours.

For instance, says Phuong Huynh, a postdoc who worked on the project, a computer simulation of fluid flow around an obstacle in a pipe could depend on a single parameter: the radius of the obstacle.

The first book to be sold over the Internet was Douglas Hofstadter's Fluid Concepts and Creative Analogies: Computer Models of the Fundamental Mechanisms of Thought.