The Tor anonymity network is championed as a tool for freedom of speech and anonymity. But the reality is depressingly different, say Internet researchers who have analysed the network's traffic using a security flaw.
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Look out for mass-produced invisibility cloaks thanks to an entirely new way of designing and manufacturing them out of materials such as Teflon.
Graphyne sheets could filter salt from seawater at rates several orders of magnitude faster than conventional desalination techniques, say Chinese researchers
The best of the rest from the Physics arXiv preprint server
Sentiment analysis on the social web depends on how a person’s state of mind is expressed in words. Now a new database of the links between words and emotions could provide a better foundation for this kind of analysis
The latest online crowdsourcing tool allows students to grade their classmates' homework and receive credit for the effort they put in.
The ability to stack graphene sheets on top of each other should make possible an entirely new class of devices that exploit previously inaccessible physics, say researchers
By mapping the way patents cite each other, network scientists have been able to study how different technologies rely on each other and how new technologies emerge
A mathematical model of how to tackle Vicodin abuse reveals that Benjamin Franklin had the right idea 200 years ago
Quantum cryptography has only ever been possible between places equipped like quantum optics laboratories. Now physicists have worked out how to do it with handheld mobile devices