engines

engineeringReaction Engines Tests Critical Pre-Cooler at Mach 3.3 Conditions

Reaction Engines is working towards air-breathing space planes and hypersonic airplanes. They have successfully tested their critical pre-cooler technology at the temperature conditions it would experience at 3.3 times the speed of sound. The pre-cooler quickly drops the temperature of …

enginesSpaceX Raptor Engine SpaceHopper Test Today

Spadre.com is reporting that SpaceX is performing the first new raptor engine firing on the Spacehopper. The Spacehopper is being held down with tethers. Every Day Astronaut is also reporting live on the test firing. Sheriff just advised road closure …

energyMicroscopic Quantum Heat Engine That Outperforms Classical Engines

Researchers have used an ensemble of NV− centers in diamond for implementing different types of quantum heat engines. They have used these to demonstrate the equivalence of the power output of two different engine types, continuous and two-stroke, for small …

enginesRaptor Engine at SpaceX Starhopper Launchpad

SpaceX is installing the first Raptor engine into the Starhopper. There is video and pictures of the Raptor engine beside the Starhopper. Vivian Okoy shared a tweet with a picture of the Raptor engine. The Raptor engine has nearly twice …

batteriesTALOS special ops exoskeleton today and plans for exoskeleton divisions in 2030s

US Special Operations have built prototypes of the TALOS exoskeleton. It is designed to shield commandos from gunfire when they are in heavy urban combat. This special situation exoskeleton system will be the first system used in combat. In five …

carbon nanotubesSuperstrong materials for electric spaceplanes instead of space elevators

China has carbon nanotube bundles in the lab that are 20 times stronger than kevlar. They are trying to scale them up for mass production. If they succeed in mass producing tons of this material then what has been impossible …

elon muskElectric Tesla Roadster with rockets will beat all performance metrics of gas sports cars

Elon Musk wants the new Tesla Roadster is to beat gas sports cars on every performance metric by far and without exceptions. * faster from 0 to 60 mph * faster on the quarter mile * better braking, cornering and …

air pollutionClean future trucks with gasoline-alcohol engines at half the cost of alternatives

The US trucking industry is being pressured to deal with diesel emissions. California would require that NOx emissions from medium- and heavy-duty trucks be cut by about 90 percent relative to today’s cleanest diesel. India and China mostly do not …

airplaneSome details on China hypersonic engine factory

Fan Xuejun, head of Institute of Mechanics’ “scramjet” division – focused on using high vehicle speed to compress incoming air forcefully before combustion – was lead scientist for the hypersonic project. Fan told the South China Morning Post that …