Actually, there are rumors from various sources, some recently declassified, that the Nazis detonated a nuclear device in late 1944. What slowed their progress was Allied bombing, not a lack of competent scientists. There were projects other than Heisenberg's which focused on a uranium, rather than a plutonium, bomb and proved remarkably advanced despite their limited assets. A site for uranium enrichment similar to Oakridge was said to have been built by I.G. Farben at Auschwitz. Also, German scientists were able to correctly calculate the critical mass of Uranium 235 as early as 1941, Baron Manfred von Ardenne being one of them. The belief that the Nazis were bunglers in the field that they created is rather ridiculous.
Read "Reich of the Black Sun: Nazi Secret Weapons & The Cold War Allied Legend" by Joseph P. Farrell. There is a site where you can read the book for free
here.
There are also persistent rumors that:
Hitler escaped the bunker and lived out his life A) in South America, B) as a priest in Italy, C) in Stalin's loving care
Nazis maintain a secret base in a subterranean location accessed at the North Pole
Japan detonated a Bomb
The Mayans stated that the world will end in December of 2012
Either the Israelis or the U.S. government destroyed the World Trade Centers
Man never set foot on the Moon and the whole thing was filmed on a Hollywood sound stage
Barak Obama was born in Kenya
UFO's exist and aliens are taking people for testing (and to implant hybrid embryos
)
Every one of these rumors have miles of documentation and they all share a critical similarity. Every one of them is MORE likely that the Nazi's detonating a nuclear weapon in 1944.
The Nazis were not bunglers in a field they invented. That field was NOT Nuclear Weapons, something that may have had serious GERMAN roots (there is, BTW difference between the two terms), but no Nazi roots, but they were nevertheless a proud pioneer in a modern field.
They were undoubtedly exceptionally skilled at turning human beings into air pollution