No7 cross

After a rain, the cupped leaf of a pitcher plant becomes a virtually frictionless surface. Sweet-smelling and elegant, the carnivore attracts ants, spiders, and even little frogs. One by one, they slide to their doom. Adopting the plant's slick strategy, a group of applied scientists at the Wyss Institute and Harvard's School of Applied Sciences and Engineering have created a material that repels just about any type of liquid, including blood and oil, and does so even under harsh conditions like high pressure and freezing temperatures.