This week’s most interesting and thought-provoking papers from the Physics arXiv.
Changing a computer’s fan speed produces an audio signal that can be hijacked to steal data, say computer security experts who have tested the technique.
After falling victim to hackers, quantum cryptographers are fighting back with a more secure system capable of sending messages further than ever before.
The search company has updated its Earth and Maps applications with a petabyte of Landsat data—but the most exciting uses are likely to come from mapping experts.
Supercomputers can’t keep getting faster unless they start eating less power. Chips like those in your phone could make that possible.
Questions about accuracy and transparency plague the bureau’s five-year-old face matching system.
Scaling up the hardware could one day solve problems well beyond the ability of current computers.
Applying network theory to medieval records suggests that historical events are governed by “laws of history,” just as nature is bound by the laws of physics.
The iPhone maker says it stopped obscuring crucial operating system code to boost performance—a change that could also improve device security.
A preview of Apple’s next mobile operating system upgrade revealed some of the system's inner workings for the first time and suggests that the company wants help finding security flaws.