Weekend Edition: AI's autism eye spy, a high-tech penny farthing and wearable body cams for everyone

[New Atlas logo]( Welcome to our weekly wrap of the best stories to grace the pages of New Atlas over the last seven days. Sit back, relax and enjoy our Weekend Edition. Medical [AI-screened eye pics diagnose childhood autism with 100% accuracy]( [Researchers have been able to accurately diagnose autism in children using AI to screen retinal photographs]( Researchers have used AI to screen photographs of children’s retinas to diagnose autism with 100% accuracy. The findings suggest AI is a viable screening tool for early diagnosis, especially when access to a specialist child psychiatrist is limited. [Read more]( Bicycles [Hubless-wheel electric penny farthing is a one-of-a-kind masterpiece]( [Christopher Terpstra with his finally-complete penn-E-farthing]( Although their advantages over conventional bikes are debatable, hubless-wheel ebikes do look futuristic. Penny farthings, on the other hand, do not. It only makes sense, then, that Christopher Terpstra would combine the two in his penn-E-farthing. [Read more]( Wearables [PhoneCam aims to bring body-camera security to everyday folks]( [The PhoneCam was inspired by the body cameras worn by police officers and other first responders]( Sometimes, violent people rein in their aggressive behavior if they know they're being recorded on video. Whipping out your phone and filming them, however, may make things even worse. That's where the PhoneCam is intended to come in. [Read more]( Automotive [Carice TC2 is the retro electric convertible you didn't know you wanted]( [If James Dean were to have driven an EV, it might have been something like this]( Many electric vehicles look very cold and high-tech, alienating some potential buyers. The Carice TC2 two-seater convertible is different, in that it draws heavily on the retro-nostalgia factor. It's lightweight and peppy, to boot. [Read more]( Motorcycles [Kawasaki has built a hydrogen-powered, supercharged Ninja H2 SX]( [Kawasaki will begin testing this hydrogen-powered H2 prototype next year]( Kawasaki is doing some fascinating work toward decarbonizing motorcycles. After launching the world's first hybrid streetbike in the Ninja 7 Hybrid, it's now built a supercharged, zero-emissions, hydrogen-powered Ninja H2 SX. An H2 H2, if you will. [Read more]( Architecture [3D-printed reinforcement-free bridge moves closer to widespread use]( [Holcim and its partners are exploring how the Phoenix could be scaled up to be used in infrastructure projects]( Humans have been building walls, bridges, and other structures without any steel or mortar reinforcement for a long time. A team led by Holcim has put a 3D-printed spin on the idea, and hopes to use it to revolutionize modern infrastructure. [Read more]( Medical [Single-dose drug to quash anxiety passes another trial milestone]( [MM-120 is a synthetic tryptamine belonging to the group of serotonergic psychedelics]( An effective single-dose, long-term treatment for anxiety could be within reach, with the phase 2b clinical trial of MM-120 reported to have passed the stage with flying colors. [Read more]( Technology [Fully autonomous restaurant set to open in Pasadena]( [The Flippy 2 robotic burger and fries chef has now got its own autonomous restaurant]( At the new CaliExpress by Flippy, opening soon, you'll order on a screen, then watch as robots work the burger grill and fry baskets to serve food – without a single pimply human having to drag itself out of bed and pretend to be happy to see you. [Read more]( Drones [VT-Naut fixed-wing drone takes off vertically and makes water landings]( [The VT-Naut is hailed as being "the only vertical take-off fixed-wing drone that can land on the water"]( If you've ever tried flying a drone, you'll know how hard it can be to land one in just the right place … now imagine trying to land one on a boat out at sea. The VT-Naut is designed to make things easier, by performing belly landings on the water. [Read more]( Aircraft [Full-scale Overair Butterfly eVTOL prototype is set for first test flights]( [The Overair team poses with the fully functional Butterfly eVTOL prototype]( eVTOLs are one of those things that many groups announce their plans to create, but fail to produce in physical form. Such is not the case with Overair's Butterfly, however, the just-unveiled prototype of which should soon begin flight testing. [Read more]( Music [Tiny DAC makes high-resolution music mobile]( ["We wanted to make a high resolution, high power USB DAC that we could ALWAYS take with us. Something so small and easy to use, there would never be an excuse to not have it with you. So we took a 3.5-mm TRS jack, and a USB-C jack, put them back to back, and set our goal: full high-res, high-power in something that size," said Periodic Audio]( Generally speaking, the audio output of your mobile device or laptop probably isn't particularly good, which means that many music lovers will look to external gear to improve the groove. Periodic Audio has launched a tiny DAC designed to do just that. [Read more]( Military [GE combines rotating detonation and ramjet in new hypersonic engine]( [The new engine will provide longer range and greater efficiency for hypersonic missiles]( GE Aerospace has demonstrated what it claims is the world's first hypersonic Dual-Mode Ramjet (DMRJ) rig test using Rotating Detonation Combustion (RDC) in a supersonic flow stream that could one day give hypersonic missiles longer range. [Read more]( Bicycles [Literal ebike freight train can transport over 1,000 lb of cargo]( [Pelican's eTrain is a modular system that starts with a basic cargo ebike and grows into a double-trailer train]( The modular Pelican eTrain is unlike any other cargo bike system we've seen, combining a capable e-cargo bike with one or two powered trailers for up to 1,100 lb or 3,000 L of cargo. It shoulders loads around the city like a small panel van. [Read more]( Space ["Swiss army knife" of life and energy buffet found on Saturnian moon]( [Scientists have identified complex chemistry on Saturn's moon Enceladus that boosts the case for life]( Saturn’s moon Enceladus continues to climb the list of best places to look for life beyond Earth. New NASA data has detected a molecule thought to be key to the origin of life, and suggests there’s more chemical energy for life to chow down on. [Read more]( Marine [Former Tesla exec officially unveils R30 electric day cruiser]( [The R30 electric day cruiser was officially launched in St. Petersburg, Florida, on December 16]( All we had to gawp at in October were a few renders, but now the company founded by the former Global Head of Manufacturing at Tesla has officially launched its R30 electric boat in St. Petersburg, Florida. [Read more]( Physics [Some stars could swallow black holes – here's how we can find them]( [An artist's impression of a "Hawking star" – a star containing a small black hole in its center]( Black holes are famous for gobbling up everything – but could they ever be swallowed whole? A new study suggests stars could capture very small black holes. There might even be a way to find them, and if so, they could help us understand dark matter. [Read more]( Motorcycles [Ziggymoto perfectly illustrates the shape-shifting motorcycle idea]( [A transforming Ducati that can smoothly morph between road, adventure, and cruiser modes]( Two wheels, a motor, a seat, some handlebars and some footrests: put 'em in one arrangement, and you've got a sportsbike. In another, a cruiser. Or an adventure machine. Or a commuter. Why not a single, shape-shifting architecture that does it all? [Read more]( Energy [Quantum batteries could charge by breaking our understanding of time]( [A diagram of the quantum battery charging through indefinite causal order (ICO)]( Causality is key to our experience of reality: dropping a glass, for example, causes it to smash, so it can’t smash before it’s dropped. But scientists have now demonstrated how that understanding of time can be violated to charge a quantum battery. [Read more]( Science [Electrified cloth extracts uranium from seawater]( [Cathode showing accumulation from uranium-spiked water]( A team of scientists from China's Northeast Normal University has developed an electrochemical method for extracting uranium from ordinary seawater that has the potential to supply humanity with an effectively unlimited energy source. [Read more]( Military [UK, Japan, and Italy team up to build 6th-Gen fighter plane]( [Artist's concept of the new 6th-Gen fighter]( The Sixth-Generation fighter plane commonly known as the Tempest has taken a major step toward being reality after Britain, Japan, and Italy signed an international treaty in Tokyo to create a formal partnership to develop a new supersonic aircraft. [Read more]( Automotive [Tiny VW ID. Buzz e-camper lives large with queen bed and flex kitchen]( [Tonke creates about as comfortable and functional a camper van as the small all-electric VW ID. Buzz can handle with pop-tops or expanding walls]( Tonke has launched a VW ID. Buzz camper that appears to be the most comfortable out there. Its Buzz Module kit maintains 5 factory seats and expands to support all-electric mini-camping, complete with an extra-wide bed and bidirectional kitchen. [Read more]( Materials [Induction welding joins metal foams without cramping their style]( [A study has found that induction welding (pictured) can be used to join pieces of composite metal foam without diminishing their desirable qualities]( Composite metal foams (CMFs) offer big advantages over traditional solid metal. And while the welding of CMFs usually poses some challenges, it has now been been discovered that the use of an alternative type of welding works like a charm. [Read more]( Bicycles [Oddball cargo e-trike gets its powered wheels in line]( [Three wheels in a straight line, each with its own hub motor, a 180-km battery and room up top for two]( German mobility startup Dolas eBike has unveiled a modern utility take on a tandem bike with the launch of the Defender 250. The odd-looking ride features three motored wheels, 4-inch fat tires, a 180-km range and a load capacity of 250 kg. 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