Tag Archive for 'Computer'

This conceptual illustration of a computer based on 2D molecules displays an actual scanning electron microscope image of the computer fabricated by Ghosh et al. Image credit: Krishnendu Mukhopadhyay / Penn State.

Researchers Develop World’s First Non-Silicon 2D Computer

Jun 18, 2025 by News Staff

Silicon has enabled advancements in semiconductor technology through miniaturization, but scaling challenges necessitate the exploration of new materials....

A rendering of the ion trap chip. Image credit: Jochen Wolf & Tom Harty, University of Oxford.

Scientists Set New Record for Qubit Operation Accuracy

Jun 10, 2025 by News Staff

A team of physicists at the University of Oxford has achieved the lowest-ever error rate for a quantum logic operation — just 0.000015%, or one error...

A film a few atoms thick of non-crystalline niobium phosphide conducts better through the surface to make the material, as a whole, a better conductor. Image credit: Il-Kwon Oh / Asir Khan.

Researchers Create Ultrathin Niobium-Phosphide Conductor for Nanoelectronics

Jan 9, 2025 by News Staff

Niobium phosphide can conduct electricity better than copper in films that are only a few atoms thick; moreover, these films can be created and deposited...

Bottom-up nano- to micro-fabrication is crucial in modern electronics and optics. Conventional multi-scale array fabrication techniques, however, are facing challenges in reconciling the contradiction between the pursuit of better device performance and lowering the fabrication cost and/or energy consumption. Chang et al. introduce a facile mixed-metal array fabrication method based on guided self-assembly of polymerizing organometallic adducts derived from the passivating oxides of a ternary liquid metal to create mixed metal wires. Image credit: Julia Chang.

Researchers Demonstrate New Technique for Self-Assembling Electronics

Dec 5, 2024 by News Staff

The new proof-of-concept work, published in the journal Materials Horizons, paves the way for self-assembling more complex electronic devices without relying...

A fragment of the Antikythera mechanism. Imager credit: National Archaeological Museum, Athens / CC BY-SA 3.0.

Astronomers Shed Light on Antikythera Mechanism’s Calendar Ring

Jul 10, 2024 by News Staff

The Antikythera mechanism is a multi-component device recovered from a shipwreck close to the Greek island of Antikythera in 1901. It is believed to be...

Large language models and other AI systems have already learned, from their training, the ability to deceive via techniques such as manipulation, sycophancy, and cheating the safety test.

Large Language Models and Other AI Systems are Already Capable of Deceiving Humans, Scientists Say

May 14, 2024 by News Staff

In a new review paper published in the journal Patterns, researchers argue that a range of current AI systems have learned how to deceive humans. They...

The tongue color is a mirror that reflects the health status of a patient. It could be used in diagnosing some diseases without any physical contact with the patient, which facilitates the process of primary healthcare. Image credit: Gerd Altmann / Sci.News.

New Diagnostic System Based on Tongue Color Analysis Correctly Diagnoses Diseases in 94% of Cases

Oct 24, 2023 by News Staff

Tongue diagnostic systems are fast gaining traction due to an increase in remote health monitoring worldwide, and new research from the University of South...

Problematic online usage and Internet addiction lack a refined classification. Using 796 questionnaires, Stangl et al. are the first to reveal a continuum ranging from casual users (i.e. older users) to addicts (i.e. digital natives) acknowledging five different severity levels of problematic online usage to Internet addiction. Image credit: Gerd Altmann.

Scientists Introduce New Internet Addiction Spectrum

Oct 2, 2023 by News Staff

Researchers from the University of Surrey and elsewhere have found that young people (24 years and youger) spend an average of six hours a day online;...

University of Bath Ph.D. student Alexz Farrall with a PAWS ‘breathing’ ball. Image credit: University of Bath.

Shape-Changing Biofeedback-Based Ball May Help Improve Mental Health

Aug 31, 2023 by News Staff

University of Bath Ph.D. student Alexz Farrall has invented a soft ball that ‘personifies’ breath, expanding and contracting as a person breathes in...

Cho et al. found a link between regular use of the Internet and a lower risk of dementia. Image credit: StockSnap.

Study: Regular Use of Internet Reduces Risk of Dementia

May 4, 2023 by Natali Anderson

Regular Internet usage was associated with approximately half the risk of dementia compared to non-regular usage in new research from New York University. Cho...

Kea parrots (Nestor notabilisa) don’t differentiate between the real and virtual worlds. Image credit: Amalia Bastos.

Kea Parrots Treat Physical and Virtual Worlds as Continuous and Equivalent, Study Shows

Sep 29, 2021 by News Staff

Using touchscreen laptops, a team of researchers from the University of Auckland has tested whether kea (Nestor notabilisa) — a large species of...

The annual energy consumption of the Bitcoin blockchain in China is expected to peak in 2024 at 296.59 Twh and generate 130.50 million metric tons of carbon emission. Image credit: Aaron Olson.

China’s Bitcoin Miners Will Consume as Much Energy as Mid-Sized Country within Three Years

Apr 14, 2021 by Enrico de Lazaro

Given the current trends in Bitcoin mining, Chinese researchers estimate that the energy consumption from this process in their country alone will peak...

Computer model of the Antikythera Mechanism’s display: in the center, the dome of the Earth, the phase of the Moon and its position in the Zodiac -- then rings for Mercury, Venus, true Sun, Mars, Jupiter, Saturn and Date, with ‘little sphere’ markers and smaller markers for oppositions. Scale marks and index letters for the synodic cycles of the planets are inscribed on the planet rings. Surrounding these, the Zodiac and the Egyptian Calendar. The true Sun ring has a ‘little golden sphere’ with ‘pointer.’ When the Moon and Sun pointers coincide, the Moon sphere shows black for New Moon; when the pointers are on opposite sides, the Moon sphere shows white for Full Moon. The Head of the Dragon Hand shows the ascending lunar node; the Tail the descending node. Small triangles on the true Sun ring, near the pointer, show wider and narrower eclipse limits. Eclipses are possible if the Dragon Hand is within these limits. When the Moon pointer is before the Head of the Dragon, the Moon is South of the node; after, it is North of the node -- conversely for the descending node. A Date pointer is attached to a narrow date ring, showing the date in the Egyptian Calendar. Image credit: Freeth et al., doi: 10.1038/s41598-021-84310-w.

Scientists Step Closer to Understanding Full Capabilities of Antikythera Mechanism

Mar 15, 2021 by News Staff

A team of researchers from University College London and the Cyprus Institute’s Science and Technology in Archaeology and Culture Research Center has...

Scientists Using Supercomputer to Build All-Atom Model of SARS-CoV-2 Coronavirus Envelope

Mar 24, 2020 by News Staff

Using the NSF-funded Frontera supercomputer at the University of Texas at Austin’s Texas Advanced Computing Center (TACC), researchers are preparing...

Nighttime exposure to blue light causes glucose intolerance in diurnal rodents, with a stronger effect in males when they were fed high caloric diet. Image credit: Nicholas Robb.

Nighttime Exposure to Blue Light Increases Sugar Consumption, Animal Study Finds

Jul 10, 2019 by News Staff

Nocturnal exposure to light containing short wavelength emissions (450-500 nm) — the kind of light produced by the screens of many devices —...

Device structure: (a) schematic of the processed device with control gate (CG), source (S) and drain (D) contacts (gold); the red spheres represent stored charge in the floating gate (FG); (b) details of the layer structure within the device. In both (a, b) InAs is colored blue, AlSb gray and GaSb dark red. Image credit: Tizno et al, doi: 10.1038/s41598-019-45370-1.

New Type of Computer Memory Invented

Jun 21, 2019 by News Staff

An oxide-free, floating-gate memory cell invented and patented by Lancaster University researchers promises to transform daily life with its ultra-low...

Mice and rats have a rich repertoire of around 20 kinds of calls. Image credit: Alice Gray.

DeepSqueak: Deep Learning-Based System Decodes Rodent Chatter

Feb 21, 2019 by News Staff

Deep learning has recently revolutionized the field of machine hearing and vision, by allowing computers to perform human-like activities including seeing,...

Physarum polycephalum on an oak log. Image credit: Mushroom Observer / CC BY-SA 3.0.

Slime Mold Can Solve Exponentially Complicated Problems in Linear Time

Dec 26, 2018 by Sam Sander Effron

Researchers from Lanzhou University in China have shown that the slime mold Physarum polycephalum is able to solve the Traveling Salesman Problem, a combinatorial...

Using light-emitting tablet computers in the late evening can postpone our decision to go to sleep, and make us more sleepy the next morning. Image credit: Stock Snap.

Evening Use of Light-Emitting Electronic Devices Disrupts Healthy Sleep: Study

May 30, 2018 by Enrico de Lazaro

Evening use of light-emitting electronic devices such as tablet computers can induce delays in desired bedtimes, suppress secretion of the sleep-promoting...

Scheme of a waveguide-integrated plasmonic nanoantenna for mode-selective polarization (de)multiplexing. The device couples light of orthogonal polarizations into different directions and modes of the underlying silicon waveguide. Image credit: Guo et al, doi: 10.1126/sciadv.1700007.

Optical Nanoantenna Promises Ultra-Fast Graphics on Gaming Consoles, PCs

Jul 20, 2017 by News Staff

A group of researchers from the Australian National University (ANU) and elsewhere has designed a nanoantenna — a device which is 100 times thinner...