Mach

The UK's Reaction Engines has started a new test campaign to greatly expand the envelope on its high-mach propulsion technology, hoping to prove it can upgrade current jet engines to be capable of working from takeoff speeds up to Mach 4 and beyond. The new tests are being done in conjunction with the US Department of Defense and Air Force Research Laboratory, as part of a Foreign Comparative Testing program that the US military uses to identify high-TRL (Technology Readiness Level) technologies that could "rapidly and…

Ford Motor has recalled nearly 49,000 Mustang Mach-E electric crossovers over battery safety concerns, and told dealers to temporarily halt selling the popular electric vehicle.The battery safety defect may render the vehicle immobile.The malfunction involves a potential overheating of the vehicle's battery high-voltage contactors, which can lead the vehicle to fail to start or lose power while in motion."An overheated contactor that opens while driving can result in a loss of motive power, which can increase the risk of…

Don’t worry, Apple hasn’t run out of iconic California locales to name its desktop and laptop operating system after just yet. macOS 13 will officially be known as Ventura when it arrives in a few months, but as usual, it’s far more than just a name change and some new pretty wallpapers. Here’s everything Apple has improved.Stage Manager Will Better Organize Multiple WindowsScreenshot: AppleMission Control has long been a useful macOS tool for seeing all of your open windows and applications at a glance, but Stage Manager…

iPadOS 16 will feature lots of helpful collaboration features. Image: AppleDuring its WWDC 2022 keynote, Apple previewed the new iPadOS 16, emphasizing new multitasking features. If you’ve been waiting for Apple to bring proper, resizable windows to the tablet OS, it’s just around the corner.iPad’s Stage Manager sounds like it’s a tool for your local community theater troupe. But in reality, it’s a powerful multitasking tool for the tablet device, and arguably, it brings it one step closer to emulating the laptop…

For the first time, the US Air Force has successfully recovered a reusable rocket sled traveling at hypersonic speed. The test in late March 2022 was part of the Air Force's Hypersonic Sled Recovery (HSR) project and successfully brought a sled traveling at 5.6 times the speed of sound to a stop.Hypersonic flight technology has a great potential to revolutionize both military and civilian applications, but research in the field has always been extremely difficult stretching back to NASA's X-15 rocket plane project in the…