Tattoos mark the spot—for surgery—then disappear

Tattoos aren't just for body art. They can have medical applications, too. Doctors are using them on patients to mark an area for future treatment—particularly for non-melanoma skin cancer such as basal cell carcinoma—but ...

Simply red—why one colour became so powerful

Who gets to walk on the red carpet? What makes red-letter days so special? Where is the red line that must not be crossed? When do we go to red alert? Why do you see red? And how can one colour have such diverse meanings ...

Fast energy transport between unlike partners

Chemists from the University of Würzburg have combined different dye molecules in aggregates and thereby observed surprising properties. Their discovery may help to use sunlight more efficiently for the generation of energy.

New method to identify microscopic failure (Update)

If you've never had the plumber to your house, you've been lucky. Pipes can burst due to a catastrophic event, like subzero temperatures, or time and use can take a toll, wearing away at the materials with small dings and ...

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