>>4026609TL;DR,
Germans scientists perused an alternative version of physics separate from the standard model aka (((Jewish Tricks))). Through this pursuit, there was a breakthrough in technology leading to the development of Die Glocke.
The preliminary plans were drafted, and a few experimental models were created, but it was too late in the war. This is the same thing that happened with the Horton Bro's Ho-229.
The rest is, well, forbidden history and all part of the Allied-mythology of WWII.