Archive for the ‘internet’ category: Page 115
May 17, 2022
Faster Than the Speed of Light: Overcoming the Physical Limitations of Today’s Telecommunications
Posted by Genevieve Klien in category: internet
With a grant from Independent Research Fund Denmark, a team of researchers and experts from industry and Aarhus University will try to solve the fundamental problem that the speed of light simply is not fast enough for the Internet of Skills. Human skills will be digitalized and democratized in t.
May 17, 2022
SpaceX launches two Starlink missions in 24 hours
Posted by Genevieve Klien in categories: drones, internet, satellites
Two SpaceX Falcon 9 rockets have completed back-to-back Starlink launches less than 24 hours apart, successfully delivering 106 Starlink satellites to low Earth orbit (LEO).
Originally scheduled just a handful of hours apart, slight delays eventually saw Starlink 4–13 and Starlink 4–15 settle on 6:07 pm EDT, May 13th and 4:40 pm EDT, May 14th, respectively. Entering the final stretch, launch preparations went smoothly and both Falcon 9 rockets ultimately lifted off without a hitch.
The series began with Starlink 4–13 on Friday. SpaceX chose Falcon 9 B1063 to support the Starlink launch and the booster did its job well, wrapping up its fifth launch since November 2020 with a rare landing aboard drone ship Of Course I Still Love You (OCISLY). Since SpaceX permanently transferred OCISLY from the East Coast to the West Coast in mid-2021, the drone ship has only supported five booster recoveries. Save for an unusual East Coast Starlink launch in May 2021, Falcon 9 B1061 has also primarily been tasked with supporting SpaceX’s West Coast launch manifest. With only one older pad – Vandenberg Space Force Base’s (VSFB) SLC-4 complex – available to SpaceX, the company’s West Coast Falcon launches are also considerably rarer than its East Coast missions.
May 16, 2022
Eavesdroppers can hack 6G frequency with DIY metasurface
Posted by Dan Breeden in categories: cybercrime/malcode, engineering, internet
Crafty hackers can make a tool to eavesdrop on some 6G wireless signals in as little as five minutes using office paper, an inkjet printer, a metallic foil transfer and a laminator.
The wireless security hack was discovered by engineering researchers from Rice University and Brown University, who will present their findings and demonstrate the attack this week in San Antonio at ACM WiSec 2022, the Association for Computing Machinery’s annual conference on security and privacy in wireless and mobile networks.
“Awareness of a future threat is the first step to counter that threat,” said study co-author Edward Knightly, Rice’s Sheafor-Lindsay Professor of Electrical and Computer Engineering. “The frequencies that are vulnerable to this attack aren’t in use yet, but they are coming and we need to be prepared.”
May 13, 2022
Scientists Have Powered a Basic Computer With Just Algae For Over 6 Months
Posted by Shane Hinshaw in categories: computing, internet
In a ghastly vision of a future cut off from sunlight, the machine overloads in the Matrix movie series turned to sleeping human bodies as sources of electricity. If they’d had sunlight, algae would undoubtedly have been the better choice.
Engineers from the University of Cambridge in the UK have run a microprocessor for more than six months using nothing more than the current generated by a common species of cyanobacteria. The method is intended to provide power for vast swarms of electronic devices.
“The growing Internet of Things needs an increasing amount of power, and we think this will have to come from systems that can generate energy, rather than simply store it like batteries,” says Christopher Howe, a biochemist and (we assume) non-mechanical human.
May 13, 2022
Space Force general: Commercial satellite internet in Ukraine showing power of megaconstellations
Posted by Genevieve Klien in categories: internet, satellites
A lesson from the Ukraine war is the resiliency provided by large proliferated constellations, said Gen. David Thompson.
WASHINGTON — During a Senate Armed Services Committee hearing May 11, Sen. Tom Cotton (R-Ark.) asked Space Force officials if any lessons could be drawn from the war in Ukraine about the role of commercial satellites in armed conflicts.
One lesson is the resiliency provided by large proliferated constellations, said Gen. David Thompson, vice chief of space operations of the U.S. Space Force.
May 13, 2022
BPFdoor: Stealthy Linux malware bypasses firewalls for remote access
Posted by Genevieve Klien in categories: cybercrime/malcode, internet
A recently discovered backdoor malware called BPFdoor has been stealthily targeting Linux and Solaris systems without being noticed for more than five years.
BPFdoor is a Linux/Unix backdoor that allows threat actors to remotely connect to a Linux shell to gain complete access to a compromised device.
The malware does not need to open ports, it can’t be stopped by firewalls, and can respond to commands from any IP address on the web, making it the ideal tool for corporate espionage and persistent attacks.
May 13, 2022
How Starlink Scrambled to Keep Ukraine Online
Posted by Genevieve Klien in categories: Elon Musk, internet
Elon Musk’s intervention demonstrates how satellite internet could route around war or censorship far beyond Ukraine.
May 12, 2022
Algae-powered computing: Scientists create reliable and renewable biological photovoltaic cell
Posted by Genevieve Klien in categories: biological, computing, internet
Researchers have used a widespread species of blue-green algae to power a microprocessor continuously for a year—and counting—using nothing but ambient light and water. Their system has potential as a reliable and renewable way to power small devices.
The system, comparable in size to an AA battery, contains a type of non-toxic algae called Synechocystis that naturally harvests energy from the sun through photosynthesis. The tiny electrical current this generates then interacts with an aluminum electrode and is used to power a microprocessor.
The system is made of common, inexpensive and largely recyclable materials. This means it could easily be replicated hundreds of thousands of times to power large numbers of small devices as part of the Internet of Things. The researchers say it is likely to be most useful in off-grid situations or remote locations, where small amounts of power can be very beneficial.
May 12, 2022
New tech can double spectral bandwidth in some 5G systems
Posted by Shubham Ghosh Roy in categories: computing, internet, quantum physics
Some materials, like wood, are insulators that block the flow of electricity. Conductors, such as copper, allow for electricity to flow through them. Other materials—semiconductors—can be either/or depending on conditions such as applied electric field or temperature. Unlike wood or copper or silicon, though, topological insulators (TIs) are an exotic state of matter that is conductive on the surface, but not in the bulk. Such unique material properties have great scientific implications and could be of use in a range of technologies, including wireless communications, radar and quantum information processing.
Through a collaborative effort, the research labs of Aravind Nagulu, assistant professor in the Preston M. Green Department of Electrical & Systems Engineering at Washington University in St. Louis, and colleagues from Columbia University and the City University of New York’s Advanced Science Research Center have demonstrated the first implementation of an electromagnetic topological insulator on an integrated chip.
The collaborative project’s findings were published May 2 in the journal Nature Electronics.