Solar-pumped lasers for reducing metal oxides at 5000K: https://t.co/8XSQI9tkan The metals can then regenerate a metal-air battery. The whole process has been demonstrated but the efficiency is remains catastrophic (~1%). https://t.co/YEqPqOyANk

A study of how a hemispherical nozzle can ride a series of blast waves generated by laser pulses that reach 5000K temperature and 8000 MPa pressure: https://t.co/7ezeS7YSUp As expected, the direction of this thrust depends mainly on the angle at which the laser hits the nozzle. https://t.co/EUOlR9qFW1

Actual experimental results from testing of Rotating Detonation Engines. Despite pump pressures of only 6.5 bar, methane/oxygen combustion produced specific impulse of 347s *without a nozzle*. Wall damage was a concern though, with erosion at>1000K. https://t.co/SmGhwGIIfK https://t.co/1IguRidvd0

@ElmarMoelzer @ToughSf It used GOx and CH4 with GN2 as ullage, getting a VacIsp of 348.4s with Pc of 0.5MPa is quite insane. https://t.co/c339YrvN5A https://t.co/mYUAPLFvyl