then I learned that, no, the Nazis couldn't even pull that off because Russia went and built a prototype of the Antonov A-40 крылья танка (Krylya Tanka, "winged tank"), and because words can't do it justice, here's a picture:

and today I learned that one particular American engineer went and outdid all of them I give you the deceptively named "floating pillbox," or, more accurately, the hopping tank:

This tank hops on one leg...

YouTube video by Found And Explained