The company's head of analytics explains how Twitter mines the data users produce.
There is a 50 per cent chance that time will end within the next 3.7 billion years, according to a new model of the universe
Hawking predicted it in 1974. Now physicists say they've seen it for the first time
A video shows iCub learning to improve its aim through trial and error.
The best of the rest from the Physics arXiv this week:
Engineers unveil a simple robotic gripper capable of picking up almost any object
A Caltech professor is commercializing efficient solar cells that are cheap to transport and install.
Wireless gadgets that weave signals between TV stations are a step closer.
Dan Hesse says such plans are possible, "as long as the usage is reasonable".
Research shows that users have little trust in the information they get from Twitter.