Collaborate Disseminate
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.Con… Continue reading Reaction begins testing Mach 4 jet engine upgrades for US Air Force
The world has been shaken to its core by a respiratory virus pandemic. Humanity has been raiding the toolbox for every possible weapon in the fight, whether that be masks, …read more Continue reading The Benefits of Displacement Ventilation
Although a completely flat-surfaced wheel would be aerodynamic, it would also be hard to keep cool – especially during the braking process. An experimental new wheel rim, however, has cooling vents that open as needed … and they’re activated by heat.Co… Continue reading Active Aero Wheel features brake-heat-activated cooling vents
Although a completely flat-surfaced wheel would be aerodynamic, it would also be hard to keep cool – especially during the braking process. An experimental new wheel rim, however, has cooling vents that open as needed … and they’re activated by heat.Co… Continue reading Active Aero Wheel features brake-heat-activated cooling vents
A huge chunk of energy usage goes towards heating and cooling homes and buildings, so it’s important to find new ways to regulate temperature passively. Engineers in China and Germany have developed a new wood-based foam that can drastically cool build… Continue reading Wood-based foam passively cools buildings to cut energy bills
Thanks to the relatively recent rise of affordable board production services, many of the people reading Hackaday are just now learning the ropes of PCB design. For those still producing …read more Continue reading PCB Thermal Design Hack Gets Hot and Heavy
Windows may be important for letting natural light and warmth into a room, but sometimes they let in too much, or let your artificial warmth out instead. Researchers at Oxford have developed a new smart window coating that can be tuned on the fly to em… Continue reading Tuneable smart window coating traps heat in winter, reflects it in summer
Heating and cooling buildings is a major consumer of energy, especially older ones that weren’t built with modern energy efficiencies in mind. Now, engineers at Fraunhofer Institute have developed a modular facade powered by solar panels that can heat … Continue reading Modular building facade heats and cools rooms with solar power
Berkeley Lab engineers have developed a roof coating that can keep a building warmer or cooler, depending on the weather. When it’s warm out, the material will reflect sunlight and heat, but this radiative cooling automatically switches off in winter, … Continue reading Smart roof coating reflects heat in summer and traps it in winter
When we’re hot and sweaty, we prefer cool mesh-like clothing, but otherwise … mesh just doesn’t keep us warm enough. A new dual-purpose fabric was designed with that conundrum in mind, as it features cooling vents that open upon absorbing sweat.Continu… Continue reading High-tech fabric opens cooling vents when made wet with sweat