They also committed genocide as well. Surprising that even after Israeli human rights organizations acknowledge it, it still remains stuck in the mind of capitalists to support profit at any cost.
Apart from other mentions, they also did cutting edge research on nuclear power and weapons. Some of the scientists understood how massive an undertaking that was, however the political leadership apparently did not, or the world would look different today.
The Z3 was a German electromechanical computer designed by Konrad Zuse in 1938, and completed in 1941. It was the world's first working programmable, fully automatic digital computer. [c] Wikipedia
Most of that stuff was just torture for the sake of cruelty. It lacked the scientific rigor needed to classify it as even remotely close to research, so most of the "data" collected is completely worthless.
Turns out you can't do proper experiments when the subjects are also being starved and worked to death, when you lack a proper control group, or when you interpret all the results from a heavily racist perspective. And that doesn't even touch the completely nonsensical hypotheses yet.