of propulsion, but it isn't clarified for what type of vehicle. It could be an engine for ground or air travel, but contains the implication that it is trying to 'trick physics' similar to the theoretical 'warp drive' conceived to propel interstellar spacecraft at otherwise impossible speeds...
Loops are a lot more problematic because of the speeds reached when ending the maneuver, and the speed needed to begin it. But like the barrel roll, a loopcanbe flown while only experiencing mild and positive g loads. In fact,Harold E. Thompsonflew several loopings in aSikorsky S-52, a...
Not true there is nothing in interstellar space. Dust, vacuum, photons, even heat energy. 08:02, 18 February 2016 (UTC) Could the final "Space!" be a reference to the ending of Portal 2? Condor70 (talk) 11:02, 18 February 2016 (UTC) Maybe the title text is referring to that ...