phys.org (на английском языке)

1. Scientists create new atomic clock that is both ultra-precise and sturdy

   A team of physicists and engineers at Vector Atomic, Inc., a maker of navigation and communications equipment, has developed a new kind of atomic clock that they claim is both ultra-precise and sturdy. In their paper published in the journal Nature, the group describes the factors that went into building their new clock and how well it has worked during field tests aboard a ship in the Pacific Ocean.

2. Machine learning and extended reality used to train welders

   Ever since the ancient Egyptians hammered two pieces of gold together until they fused, the art of welding has continuously progressed.

3. New insights lead to better next-gen solar cells

   For Michael Saliba and Mahdi Malekshahi, it was one of those moments in science when good experimental results raised more questions. The University of Stuttgart researchers recently developed a new process to make solar cells with perovskites—advanced crystalline materials with the potential to revolutionize solar technology. Their cells were very efficient and stable, but there was one catch: they did not have a detailed understanding of why this process worked so well.

4. Researchers develop deep learning alternative to monitoring laser powder bed fusion

   Many things can go wrong when additively manufacturing (AM) metal and without in-situ process monitoring, defects can only be detected and characterized after a product is built. Most commonly, manufacturers will use a high-speed camera to keep an eye on the melt pool geometry and its variation during a short period of the laser powder bed fusion (LPBF) process.

5. The world's largest 3D printer is at a university in Maine. It just unveiled an even bigger one

   The world's largest 3D printer has created a house that can cut construction time and labor. An even larger printer unveiled on Tuesday may one day create entire neighborhoods.

6. New metasurface innovation unlocks precision control in wireless signals

   Researchers have unveiled a technology that propels the field of wireless communication forward. This cutting-edge design, termed a reconfigurable transmissive metasurface, utilizes a synergistic blend of scissor and rotation actuators to independently manage beam scanning and polarization conversion. This introduces an innovative approach to boosting signal strength and efficiency within wireless networks.

7. Splashy Saudi mega-project NEOM chases Chinese funds

   Bigwigs behind a Saudi megacity dogged by questions about its viability have wrapped up a tour courting Chinese investors, detailing plans for a futuristic ski resort and 170-kilometer-long skyscrapers.

8. Microsoft teases lifelike avatar AI tech but gives no release date

   Researchers at Microsoft have revealed a new artificial tool that can create deeply realistic human avatars—but offered no timetable to make it available to the public, citing concerns about facilitating deep fake content.

9. Versatile fibers offer improved energy storage capacity for wearable devices

   The latest wearable devices, such as Samsung's Galaxy Ring and Apple's Vision Pro, are taking health care a step further and even enabling people to work virtually. Given the characteristics of wearable devices that require them to be small and lightweight, there is an inevitable limitation on battery capacity, still presenting a technical barrier to incorporating a variety of functions. In order for wearable devices to fully realize their potential, it is necessary to develop a lighter and 'more from less' energy storage method.

10. Q&A: Enhancing last-mile logistics with machine learning

    Across the country, hundreds of thousands of drivers deliver packages and parcels to customers and companies each day, with many click-to-door times averaging only a few days. Coordinating a supply chain feat of this magnitude in a predictable and timely way is a longstanding problem of operations research, where researchers have been working to optimize the last leg of delivery routes.