Post #258 136 Dec 13, 2016, 22:59 UTC internal combustion strikes back!http://www.nextbigfuture.com/2016/12/darpa-funds-30-kw-x4-liquid-piston.html NextBigFuture.com DARPA funds 30 KW X4 liquid piston engine that is 90 times lighter than a conventional 2700 lb military 30 KW diesel generator… DARPA has awarded LiquidPiston Inc. $2.5 million to continue development of a new, patented, high-efficiency, lighter-weight rotary engine. LiquidPiston, a