Record-breaking experiment shows that a cluster of thousands of atoms can act like a wave as well as a particle.

Gemstones like precious opal are beautiful to look at and deceivingly complex. As you look at such gems from different angles ...

Abstract: Object handover is a basic task that is found in many human-robot cooperation scenarios. If we are to build socially acceptable robots, we need to enable robots to perform handovers properly ...

Ask the publishers to restore access to 500,000+ books. An icon used to represent a menu that can be toggled by interacting with this icon. A line drawing of the Internet Archive headquarters building ...