Archive for the ‘electronics’ category

Oct 5, 2021

Combustion creates Braille display for electronics

Posted by in categories: electronics, engineering

Imagine an iPad or a Kindle for the blind, with inflatable Braille that changes shape under a user’s touch. A Cornell-led collaboration has made a crucial component for such a technology: A haptic array of densely packed actuators that cause silicone membrane “dots” to pop up when triggered by combustion.

The team’s paper, “Valveless Microliter Combustion for Densely Packed Arrays of Powerful Soft Actuators,” published Sept. 28 in Proceedings of the National Academy of Sciences. The lead author is doctoral student Ronald Heisser.

One of the major hurdles for designing a dynamic Braille display for electronics is figuring out how to apply the necessary amount of force for each dot. Previous attempts have usually involved motors, hydraulics or tethered pumps, all of which are cumbersome, complex and expensive, according to Rob Shepherd, associate professor of mechanical and aerospace engineering in the College of Engineering and the paper’s senior author.

Sep 24, 2021

A New Battery-Free System Gives Devices an ‘Infinite Lifetime’

Posted by in categories: electronics, energy

The newly developed battery-free system runs on harvested energy and can help massively reduce the growing e-waste problem.

Sep 22, 2021

Scientists build the ‘smallest-ever human-made flying structure’

Posted by in category: electronics

They’re just the size of a grain of sand, but the microfliers can carry data-collecting sensors.

Sep 20, 2021

New gravitational wave detector picks up possible signal from the beginning of time

Posted by in categories: electronics, physics

Bumps in detector could point to new physics.

Physicists turned on a new type of gravitational-wave sensor and saw two intriguing results, but they aren’t yet ready to claim a discovery.

Sep 17, 2021

Triple Monitor Luggable PC Is An All In One Powerhouse

Posted by in categories: computing, electronics

[Matt] from [DIY Perks] has made a name for himself building nice custom computing machines, and his latest triple-monitor luggable PC (video after the break) is sure to give most high-performance desktop machines a run for their money.

The large central monitor folding laptop monitors mounted vertically on either size look impressive, but only just scratches the surface of this build. Hidden behind aluminum panels are Ryzen 5950X CPU and RTX 3,080 GPU with water cooling, 64 GB of RAM, and two 8 TB SSDs. A set of high-quality speaker drivers, subwoofer, and audio amps is also included. All this hardware pulls about 600 W of power from a large DC-DC converter block, which in turn receives power from either a pair of onboard AC-DC converters or a 16 V – 63 V DC source, like a battery system.

Continue reading “Triple Monitor Luggable PC Is An All In One Powerhouse” »

Sep 16, 2021

Woman Resurrected After Being Clinically Dead for 45 Minutes

Posted by in categories: biotech/medical, electronics

Kathy Patten, a grandmother from Baltimore, suffered a heart attack and spent 45 long minutes clinically dead. But some intense CPR actually managed to bring her back to life, giving her a second chance that local news stations are calling a “medical miracle.”

Patten has reportedly made an almost full recovery, something that is exceedingly rare. While TV dramas give the impression that CPR is often successful, the reality is grim. Only around 10.6 percent of those who experience cardiac arrest are later discharged from the hospital, according to a 2018 study, though those numbers fluctuate depending the severity and timing of the incident.

“I’m so grateful God gave me a second chance,” Patten told CBS affiliate WJZ-TV. “I’m just going to be the best person I can be. It’s very scary, coming back is a second chance of life.”

Sep 10, 2021

Researchers unveil ransomware detection and recovery method for SSDs

Posted by in categories: cybercrime/malcode, electronics

Forward-looking: A team of researchers have devised a new method for protecting SSDs from ransomware attacks. It can detect ransomware, stop it in its tracks, and even recover stolen data in a matter of seconds. The cost should only be a minor increase in the SSD’s latency.

The Register spoke with the researchers, who come from Inha University, the Daegu Gyeongbuk Institute of Science & Technology (DGIST), the University of Central Florida (UCF), and the Cyber Security Department at Ewha Womans University (EWU). The system, called SSD-Insider, is supposedly almost 100 percent accurate and has been tested on real-world ransomware.

Continue reading “Researchers unveil ransomware detection and recovery method for SSDs” »

Sep 7, 2021

Technology: Ceramic chip could write off discs

Posted by in categories: computing, electronics

Circa 1991 😀

An Australian company has launched an erasable computer memory chip that retains data when its power source is switched off. The chip could revolutionise the design of computers and other electronic devices by doing away with the bulky magnetic disc memories that are currently used to store data permanently.

Current computers rely on a selection of memory devices. These include chips known as read-only memories or ROMs that store preprogrammed data without power but cannot be erased, and instantly erasable chips that require constant power, known as random-access memory or RAMs. To store more data and programs when the power is off, most computers use magnetics discs.

Continue reading “Technology: Ceramic chip could write off discs” »

Sep 5, 2021

Jeff Hawkins (Thousand Brains Theory)

Posted by in categories: electronics, neuroscience

The ultimate goal of neuroscience is to learn how the human brain gives rise to human intelligence and what it means to be intelligent. Understanding how the brain works is considered one of humanity’s greatest challenges.

Jeff Hawkins thinks that the reality we perceive is a kind of simulation, a hallucination, a confabulation. He thinks that our brains are a model reality based on thousands of information streams originating from the sensors in our body. Critically — Hawkins doesn’t think there is just one model but rather; thousands.

Continue reading “Jeff Hawkins (Thousand Brains Theory)” »

Sep 1, 2021

Dark Energy Camera captures detailed view of striking peculiar galaxy

Posted by in categories: cosmology, electronics

A spectacular portrait of the galaxy Centaurus A has been captured by astronomers using the Dark Energy Camera mounted on the Víctor M. Blanco 4-meter Telescope at Cerro Tololo Inter-American Observatory in Chile. This galaxy’s peculiar appearance—cloaked in dark tendrils of dust—stems from a past interaction with another galaxy, and its size and proximity to Earth make it one of the best-studied giant galaxies in the night sky.

The galaxy Centaurus A, which lies over 12 million light-years away in the direction of the southern-hemisphere constellation Centaurus (The Centaur), is the leading light of this striking image. This image provides a spectacular view of the luminous glow of stars and the dark tendrils of dust that hide the bright center of the galaxy. This dust is the result of a past galactic collision, in which a giant elliptical galaxy merged with a smaller spiral galaxy. As well as large amounts of gas and dust, Centaurus A’s dust lane contains widespread star formation, as indicated by the red clouds of hydrogen and by the large number of faint blue stars visible at each end of the dust lane.

Continue reading “Dark Energy Camera captures detailed view of striking peculiar galaxy” »

Page 1 of 6712345678Last