Reduce Rust by Dumping Your Wok Twice, and Other Kitchen Tips

In Physics of Fluids, researchers from Brown University present two related studies about thin film fluid flows in the kitchen: one about the relationship between how long it takes to tip the remaining liquid out of a container and its viscosity, and the other about the ideal time to wait before dumping water out of a wok to minimize rusting -- it's more effective to wait a few minutes to let the water accumulate so there's more to pour out.