An oscillation assisted digital light processing (DLP) based 3D printing approach is developed to enable ultrafast fabrication of microlens arrays with optically smooth surface (1 nm surface roughness) via a single 1-3 seconds exposure of grayscale UV light.
Read moreA multi-pronged data analysis approach that can strengthen the security of Internet of Things (IoT) devices — such as smart TVs, home video cameras and baby monitors — against current risks and threats has been created.
Read moreA comparative analysis of 'smart cities' worldwide reveals four distinct types, according to researchers. The categories may help city planners to identify and emulate models that are close to their own socio-economic circumstances and policy aspirations.
Read moreSeismologists explain how the work of regional seismic networks in North America are contributing to nuclear test monitoring, particularly in the case of low-yield explosions.
Read moreScientists have developed new technology, dubbed 'Knocker', which identifies objects and executes actions just by knocking on them with the smartphone. Software powered by machine learning of sounds, vibrations, and other reactions will follow the users' directions.
Read moreChemists have fabricated for the first time plasmonic color-switchable films of silver nanoparticles. Until now, such color changing of nanoparticles was mainly achieved in liquids, limiting their potential for practical applications. The technology has a number of applications: product authentication, color displays, signage, sensors, and information encryption.
Read moreResearchers have enabled, for the first time, determining whether the person behind a wall is the same individual who appears in given video footage, using only a pair of WiFi transceivers outside.
Read moreThe cryptocurrency Bitcoin is limited by its astronomical electricity consumption and outsized carbon footprint. A nearly zero-energy alternative sounds too good to be true, but as a professor explains, it all comes down to our understanding of what makes transactions secure.
Read moreResearchers have invented an algorithm that produces a real-time portamento effect, gliding a note at one pitch into a note of another pitch, between any two audio signals, such as a piano note gliding into a human voice.
Read moreNew research result brings the quantum internet a step closer. Such an internet could offer the military security, sensing and timekeeping capabilities not possible with traditional networking approaches.
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