This is my first rc engine, it uses gasoline/petrol to run, which will save a lot in operation cost, no need for special fuel ...

Why it matters: Mods like this aren't terribly practical (this one, for example, is very loud) but it's neat to see what is possible when thinking outside the box. And who knows, with a bit more ...

Tesla have boldly claimed that one day they’ll ship a Roadster complete with a cold-gas thruster for truly ridiculous acceleration. Whether or not that ever comes to pass remains to be seen, but ...