A new device lets you use the unique pattern of your irises in place of passwords–and the technology will also be built into laptops.
Startup Knightscope is preparing to roll out human-size robot patrols.
The effects of atmospheric carbon linger for centuries, so historical emissions totals are relevant context for the global climate policy debate.
The ebb and flow of geolocated Twitter activity is a “social microscope” that reveals the heartbeat of a city, say complexity scientists.
A smartphone-based virtual reality headset from Samsung and Oculus VR could make the technology more accessible, but it also demonstrates a new set of challenges.
A Carnegie Mellon researcher shows that designing robots to ask for human assistance can make them a lot more useful.
A smartphone-connected device delivers electrical stimulation to nerves in the head.
We're all influenced by the weather but psychologists have struggled to gather convincing data revealing the correlation. So researchers are turning to Twitter instead.
The investigation into the Virgin Galactic accident has yet to find a cause, but the FAA will consider new regulations for commercial space travel.
The best of the rest from the Physics arXiv preprint server.