Mathematical models explain how a wrinkle becomes a crease

Wrinkles, creases and folds are everywhere in nature, from the surface of human skin to the buckled crust of the Earth. They can also be useful structures for engineers. Wrinkles in thin films, for example, can help make ...

Not a drag: breakthrough will create cleaner, faster planes

(PhysOrg.com) -- A world first model for predicting fluid flows close to surfaces will enable engineers to reduce drag in vehicles, and in turn, lead to more efficient and greener planes, cars and boats, according to a University ...

Nanomodified surfaces seal leg implants against infection

In recent years, researchers have worked to develop more flexible, functional prosthetics for soldiers returning home from battlefields in Afghanistan or Iraq with missing arms or legs. But even new prosthetics have trouble ...

Why steam burns are particularly vicious

Even if the wound looks superficially harmless, steam burns must be cooled persistently. Empa researchers have now been able to show for the first time how hot steam achieves its vicious effect: It penetrates the upper skin ...

Self-healing surfaces

The engineers' dream of self-healing surfaces has taken another step towards becoming reality -- researchers have produced a electroplated layer that contains tiny nanometer-sized capsules. If the layer is damaged, the capsules ...

How key genes cooperate to make healthy skin

Skin is the body's armor, protecting us from disease agents, injury, excessive water loss, and cold and heat. Yet mutations in a single gene, the gene for the protein p63, cause numerous diseases and malformations of the ...

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