>>/18463/
> people invented real crazy things
That's for sure. I can't imagine - from the point of view where we are now with the knowledge about tanks - that Tsar-tank running around, very unreal. If you check it out how Burstyn imagined the crossing of a trench... just wow.
>>/18464/
Espionage was and is real so it isn't impossible the countries snatched stuff from each other. I bet a just rejected inventor could (can, still) talk hours about his super-awesome idea and how those shitheads at the military just can't recognize his and his machine's ingenuity which looks this and this and works like that and that.