Lifeboat Foundation

Water and carbon make a quantum couple: the flow of water on a carbon surface is governed by an unusual phenomenon dubbed quantum friction. A new work published in Nature Nanotechnology experimentally demonstrates this phenomenon—which was predicted in a previous theoretical study—at the interface between liquid water and graphene, a single layer of carbon atoms. Advanced ultrafast techniques were used to perform this study. These results could lead to applications in water purification and desalination processes and maybe even to liquid-based computers.

For the last 20 years, scientists have been puzzled by how water behaves near carbon surfaces. It may flow much faster than expected from conventional flow theories or form strange arrangements such as square ice. Now, an international team of researchers from the Max Plank Institute for Polymer Research of Mainz (Germany), the Catalan Institute of Nanoscience and Nanotechnology (ICN2, Spain), and the University of Manchester (England), reports in the study published in Nature Nanotechnology on June 22, 2023, that water can interact directly with the carbon’s electrons—a quantum phenomenon that is very unusual in fluid dynamics.

A liquid, such as water, is made up of small molecules that randomly move and constantly collide with each other. A solid, in contrast, is made of neatly arranged atoms that bathe in a cloud of electrons. The solid and the liquid worlds are assumed to interact only through collisions of the liquid molecules with the solid’s atoms—the liquid molecules do not “see” the solid’s electrons. Nevertheless, just over a year ago, a paradigm-shifting theoretical study proposed that at the water-carbon interface, the liquid’s molecules and the solid’s electrons push and pull on each other, slowing down the liquid flow: this new effect was called quantum friction. However, the theoretical proposal lacked experimental verification.

The most American-made cars sold in the US all come from Tesla, but the car in the number six spot is a bit of a surprise.

A fascinating eVTOL project is about to come out of stealth, showcasing a “breakthrough HyperDrive propulsion technology” that MagLev Aero claims is “dramatically more quiet, efficient, safe, sustainable and emotionally appealing to the mass market.”

Representatives from the Boston-based company have made their way to the Paris Air Show, where they’re preparing to reveal a very different approach to electric vertical lift aircraft, drawing on the magnetic levitation technology used in high-speed trains.

What we appear to have here is an annular lift fan arrangement. The aircraft’s cabin appears to be surrounded by a huge ring-shaped duct, into which at least one large-diameter, many-bladed fan is mounted.

Tesla is an interested buyer of a small Germany-based wireless charging startup following the automaker’s indications that it might launch its own EV wireless charger.

Several companies have been working on wireless charging for electric vehicles in recent years, but the technology has never taken off.

There are several issues with it. For example, it’s not as efficient as charging with a cable – though the technology has been closing the gap in recent years. It’s also more expensive, as you generally have to embed a charging pad securely in the ground instead of just mounting a charger on the wall.

The United Nations Secretary General, António Guterres, recently sounded an ominous alarm bell. The Sustainable Development Goals, which aim to significantly reduce poverty around the world and create a better quality of life for all, are off track, he warned.

And so French President Emmanuel Macron called a global conference in Paris this month to address getting the 2030 SDG targets back on course. As world leaders from Barbados to Kenya to Germany gather, there are seven things they must focus on. This blueprint for prosperity is too important to let slide.

Tesla Inc. has something new to boast about. The electric vehicle maker swept the top four spots on Cars.com’s annual ranking of most made-in-America vehicles.

The four Tesla models — in order of how they rank, Tesla Model Y, Tesla Model 3, Tesla Model X and Tesla Model S — are all made at the company’s gigafactory in Fremont. Tesla, which is based in Austin, Texas but has its engineering headquarters in Palo Alto, also manufacturers the models at factories in Texas and Nevada.

Tesla announced it produced 10 million 4,680 battery cells at Gigafactory Texas. It is a good sign for the automaker’s production ramp-up, which relies heavily on the new cell.

The 4,680 battery cell format has taken the industry by storm since Tesla unveiled its own cell strategy at Battery Day in 2020.

The automaker claimed the potential to reduce battery cost by over 50% with the new design; it has been trying to bring it to volume production since, but it has run into some bottlenecks.

CB Insights has unveiled the winners of the seventh annual AI 100 — a list of the 100 most promising private AI companies across the globe.

Around one-third of this year’s winners are focused on AI applications across specific industries — such as visual dubbing for the media & entertainment sector or textile recycling for fashion & retail. A total of 40 vendors are focused on cross-industry solutions, like AI assistants & human-machine interfaces (HMIs), digital twins, climate tech, and smell tech.

Additionally, 27 companies in this cohort are developing tools like vector database tech and synthetic datasets to support AI development.

The design could overcome one of the key challenges facing electrifying larger planes.