canopic jug writes:The Free Software Foundation (FSF) has published five of the white papers it funded regarding questions about Microsoft Copilot. After Microsoft acquired GitHub, it set up a machine learning system to cull through its archive of software, called Copilot. The approach chosen and even the basic activity raises many questions starting with those of licensing.
hubie writes:A news article over at Science talks about new research demonstrating that after only a few minutes of mopping the floors indoors using a delightfully-lemon-scented cleaner can generate as many harmful airborne particles as vehicles driving on busy streets.
quietus writes:European airplane maker Airbus and a 50/50 joint partnership between General Electric (GE) and Safran Aircraft Engines are going to equip an A380 superjumbo with a hydrogen engine, by 2026. The plan is to go the cryogenic route with hydrogen: using its liquid form at -253°C (-425°F), and burning it directly in a GE Passport turbofan.The modified A380 will keep its 4 conventional turbines, with an additional fifth being the hydrogen-powered one.The number of technical challenges are large. Under the plans, 400kg of liquid hydrogen will be stored in four tanks at minus 253 degrees Celsius. A new cryogenic distribution system will need to be developed. The hydrogen will also need to be converted into a gas before it is burnt. The gas burns at a much higher temperature than conventional jet fuel, so special cooling and coating materials will also need to be developed.The modified GE Passport jet engine needs a complete overhaul of its combustor, fuel system and controls system to make them compatible with liquid hydrogen fuel. The group picked the Passport because of its size, advanced turbomachinery and ability to operate at the appropriate pressures and temperatures for the flight platform. As the liquid hydrogen needs to be vaporized into gas to be used as fuel, certain parts of the engine could see temperature differences of some 1,500 degrees Fahrenheit.Read more of this story at SoylentNews.