In this model, given the role of theoretical free expansion in the void, gases in the combustion chamber cannot even be pushed to the nozzle, since — by virtue of being in vacuum — they are already headed to the nozzle and interacting with themselves at maximum freedom. Once in the vacuum, they would bounce off one another and go in every direction available, forming billowing clouds of uselessly massed pseudo-gas. Since nothing would be preventing the gas from moving, there would probably not even be measurable swirls on the edges of this instant ever-expanding "cloud".
Even liquid reactions that took place in the combustion chamber that resulted in exploding gases would create gas. This gas would instantly be under the laws of free expansion before they reached the nozzle. Perhaps NASA is hoping the cold of outer space will freeze the gas and cause it to be more effective?
Anyway, work being done on the traditional combustion chamber and nozzle is lost.
Only shooting compressed, extremely dense liquid such as mercury, would move the rocket quickly and effectively in space. And then, how would you get that enormous mass of dense material up into space in the first place?
Ergo, is there no present rocket design that satisfies the required efficiencies of being operational in both atmosphere and void according to this free expansion theory? Well ...
Based on this cheery and optimistic report, perhaps we shouldn't say rocketry is impossible. Maybe we should just say its purpose and functionality should be reconsidered. Water's proven effectiveness according to Heiwa should mean if we pump enough water quickly enough, a rocket that works like the jet board could surpass all previous ineffective and cumbersome models of rocketry. Hell, we could even have geostationary orbiting "satellites" (above places used to rain fail such as England or the Amazon).totalrecall wrote:I am with heiwa and lux on this one. If you look at the flyboard video from 05:18 to 05:21, you will see the man attempting to fly up further than the water cable allows. If it hadn't been for the weight of the jet machine and lack of water to pump, the man would have flown up high in the sky.