Computers

New Army-funded research could help lay the groundwork for future quantum communication networks and large-scale quantum computers. Researchers sent entangled qubit states through a communication cable linking one quantum network node to a second node. Scientists at the Pritzker School of Molecular Engineering at the University of Chicago, funded and managed by the U.S. Army … [Read more...] about Breakthrough lays groundwork for future quantum networks

How do you turn "dumb" headphones into smart ones? Rutgers engineers have invented a cheap and easy way by transforming headphones into sensors that can be plugged into smartphones, identify their users, monitor their heart rates and perform other services. Their invention, called HeadFi, is based on a small plug-in headphone adapter that turns a regular headphone into a … [Read more...] about How to make all headphones intelligent: Engineers can turn ‘dumb’ headphones into smart ones by turning them into sensors

What do you do after solving the answer to life, the universe, and everything? If you're mathematicians Drew Sutherland and Andy Booker, you go for the harder problem. In 2019, Booker, at the University of Bristol, and Sutherland, principal research scientist at MIT, were the first to find the answer to 42. The number has pop culture significance as the fictional answer to "the … [Read more...] about After cracking the ‘sum of cubes’ puzzle for 42, mathematicians discover a new solution for 3: The 21-digit solution to the decades-old problem suggests many more solutions exist

Despite years of hype, virtual reality headsets have yet to topple TV or computer screens as the go-to devices for video viewing. One reason: VR can make users feel sick. Nausea and eye strain can result because VR creates an illusion of 3D viewing although the user is in fact staring at a fixed-distance 2D display. The solution for better 3D visualization could lie in a … [Read more...] about Using artificial intelligence to generate 3D holograms in real-time

Researchers have published a study revealing their successful approach to designing much quieter propellers. The Australian research team used machine learning to design their propellers, then 3D printed several of the most promising prototypes for experimental acoustic testing at the Commonwealth Scientific and Industrial Research Organisation's specialised 'echo-free' … [Read more...] about Successful trial shows way forward on quieter drone propellers

Scientists have developed a see-through glass display with a high white light contrast ratio that smoothly transitions between a broad spectrum of colors when electrically charged. The technology, from researchers at Jilin University in Changchun, China, overcomes limitations of existing electrochromic devices by harnessing interactions between metal ions and ligands, opening … [Read more...] about An electrically charged glass display smoothly transitions between a spectrum of colors

Eye contact is a key to establishing a connection, and teachers use it often to encourage participation. But can a robot do this too? Can it draw a response simply by making "eye" contact, even with people who are less inclined to speak up. A recent study suggests that it can. Researchers at KTH Royal Institute of Technology published results of experiments in which robots led … [Read more...] about Robots can use eye contact to draw out reluctant participants in groups

Material behaviors depend on many things including not just the composition of the material but also the arrangement of its molecular parts. For the first time, researchers have found a way to coax carbon nanotubes into creating moiré patterns. Such structures could be useful in materials research, in particular in the field of superconducting materials. Professor Hiroyuki … [Read more...] about Carbon nanotube patterns called moirés created for materials research

Researchers at Toshiba Corporation in Japan have studied the operation of a small device fabricated in the write gap of a hard disk drive's write head to extend its recording density. The device, developed by HWY Technologies, is based on a design concept known as microwave-assisted magnetic recording, or MAMR. This technology, reported in the Journal of Applied Physics, by AIP … [Read more...] about Microwave-assisted recording technology promises high-density hard disk performance: Flux control effect in microwave-assisted magnetic recording exploited to improve the recording field in hard disks

Most teenagers don't remember life before the internet. They have grown up in a connected world, and being online has become one of their main sources of learning, entertaining and socializing. As many previous studies have pointed out, and as many parents worry, this reality does not come risk-free. Whereas time on the internet can be informative, instructive and even … [Read more...] about Problematic internet use and teen depression are closely linked