It may be the biggest development in engines in 85 years - and could have major impact on drone development. A revolutionary engine design first demonstrated on the back of a go-kart is now proving its case for powering military drones and other autonomous vehicles. The LiquidPiston design offers significant progress in expanding the range and endurance of … [Read more...] about The Pentagon Just Upped its Investment in this MIT Grads Startup to Increase Fight Endurance for Military Drones