Search for clues may explain collapse of ancient city in Mexico

Built more than a thousand years before the Aztec arrived in central Mexico, Teotihuacan was once one of the largest cities in the world. Its stone temples, comparable in size to Egypt's pyramids, still draw fascinated visitors, ...

Israel acquires rare ancient papyrus with Hebrew inscription

Israel has acquired a previously unknown ancient papyrus bearing a Hebrew inscription dated to around 2,700 years ago that had long been in possession of a Montana resident, the country's antiquities authority said Wednesday.

An engaging leadership style may boost employee engagement

A new analysis suggests that a particular leadership style dubbed "engaging leadership" can boost employees' engagement and enhance team effectiveness within the workplace. Greta Mazzetti of the University of Bologna, Italy, ...

Mobile molecular robots swim in water

Creating molecular microrobots that mimic the abilities of living organisms is a dream of nanotechnology, as illustrated by the renowned physicist Richard Feynman. There are a number of challenges in achieving this goal. ...

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