A new training interface allows a robot to learn a task in several different ways. This increased training flexibility could help more people interact with and teach robots — and may also enable robots to learn a wider set of skills.

Billionaires, oligarchs, and other members of the uber rich, known as "elites," are notorious for use of offshore financial systems to conceal their assets and mask their identities. Understanding the transnational offshore finance networks that they utilize has long been a challenge given the secrecy involved. But a new Dartmouth study reveals there are distinct patterns associated with the offshore system, which are specific to where a wealthy person comes from.