Toggle light / dark theme

Ledger, a French startup mostly known for its secure crypto hardware wallets, has started shipping new wallets nearly 18 months after announcing the latest Ledger Stax devices.

The updated wallet features an E-Ink display and has been designed in partnership with Tony Fadell, one of the main designers behind the iPod. E-Ink technology is generally used for e-book readers like the Amazon Kindle or the Rakuten Kobo because the displays look good in daylight and don’t require a lot of power.

After fulfilling all preorders, the company will list the Ledger Stax on its website once it has more stock available. The reason the hardware wallet fell behind schedule is the company may have overpromised on the design front. The Ledger Stax features a curved E-Ink display. It said it has been more difficult than expected to produce curved E-Ink displays at scale.

Lithium-ion batteries have been at the forefront of energy storage technologies. However, the availability of lithium is limited. Consequently, the growing demand for energy-storage systems has led to the search for low-cost and more accessible materials for rechargeable batteries. Sodium-ion batteries (SIBs) are a promising candidate due to the virtually unlimited sodium (Na) resources in seawater and salt deposits.

New discoveries about Jupiter could lead to a better understanding of Earth’s own space environment and influence a long-running scientific debate about the solar system’s largest planet. “By exploring a larger space such as Jupiter, we can better understand the fundamental physics governing Earth’s magnetosphere and thereby improve our space weather forecasting,” said Peter Delamere, a professor at the UAF Geophysical Institute and the UAF College of Natural Science and Mathematics.

“We are one big space weather event from losing communication satellites, our power grid assets, or both,” he said.

Space weather refers to disturbances in the Earth’s magnetosphere caused by interactions between the solar wind and the Earth’s magnetic field. These are generally associated with solar storms and the sun’s coronal mass ejections, which can lead to magnetic fluctuations and disruptions in power grids, pipelines and communication systems.

A global team of researchers and industry collaborators led by RMIT University has invented recyclable ‘water batteries’ that won’t catch fire or explode.

Lithium-ion energy storage dominates the market due to its technological maturity, but its suitability for large-scale grid energy storage is limited by safety concerns with the volatile materials inside.

Lead researcher Distinguished Professor Tianyi Ma said their batteries were at the cutting edge of an emerging field of aqueous energy storage devices, with breakthroughs that significantly improve the technology’s performance and lifespan.

“Batteries are the crux of many of the most important emerging technologies in both the civilian world and, important to our profession, on the battlefield,” said United States Military Academy Cadet Michael Williams. “More energy dense batteries allow, for instance, greater range on electric vehicles, longer battery lives for radios, and longer flight times for drones. Our work helps make manufacturing these batteries easier.”

Cadets Michael Williams, Avery Patel, and Nancy Astable have been working on a long-term project with their faculty mentors Dr. Enoch Nagelli, Dr. Simuck Yuk, and Army Col. John Burpo to develop new ways to maximize energy storage and generation for the U.S. Army Combat Capabilities Development Command’s Armaments Center. In collaboration with Cornell University, the team at USMA’s Department of Chemistry and Life Sciences is pursuing innovative approaches to increasing the quality and use of batteries and fuel cells.

The value of conducting scientific research to solve real-world problems is clear to the cadets.

In recent years, global environmental concerns have prompted a shift toward eco-friendly manufacturing in the field of organic synthetic chemistry. In this regard, research into photoredox catalytic reactions, which use light to initiate redox or reduction-oxidation reactions via a photoredox catalyst, has gained significant attention. This approach reduces the reliance on harsh and toxic reagents and uses visible light, a clean energy source.

Tesla has officially broken ground on its new Megafactory project to build Megapacks for energy storage in China.

The Megafactory in Lathrop, California, was Tesla’s first dedicated factory to produce Megapacks, which were previously produced at Gigafactory Nevada.

It is still ramping up to its full capacity of 40 GWh worth of Megapacks, a battery pack for utility-scale energy storage projects, but it has already helped Tesla break new records of energy storage deployment almost every quarter.