Back in 1989, when I couldn’t afford an oscilloscope but really wanted one, I searched through all the bookstores in the county and finally found a schematic for making an oscilloscope using a television. After building it, I used it for many years. Now, finished oscilloscopes are everywhere, and I don’t know which mouse has … Read more
Abstract With the widespread popularity of smartphones, people’s lives have become inseparable from touchscreen devices. However, the security issues of these devices have been largely ignored. In recent years, attacks targeting touchscreen devices have been increasing, posing serious threats to users’ data security and privacy. This article studies touchscreen attacks, focusing on attacks based on … Read more
Ultralight dark photons are a promising candidate for dark matter. When coupled with standard model photons through a dynamical mixing mechanism, coherent electromagnetic waves are expected to be induced by dark photons, and spatial correlations should occur within the de Broglie wavelength of the dark photons. In this context, a team led by Professor Peng … Read more