He conducted his experiments on Auschwitz prisoners during the holocaust. He was a doctor in Auschwitz who used the prisoners to conduct highly unethical experiments such as taking people's organs without anesthetics for examination, or freezing people to death in order to examine effects of hypothermia.
He believed that he was not evil but that it was a great opportunity to expand science. Since he didn't consider Jews to be people, they were good for his experiments since he could do anything he wanted while rationalizing that it was ultimately worth it since he would get new information and develop medicine so he believed that the ends justify the means.
Like many others, Leonardo da Vinci was one of the undeniable world geniuses during human history and civilization. Thus, many of his inventions, due to their genius, remained accessible to a small number of people, while most of them remained unavailable and, above all, incomprehensible. Also, many of his inventions were avant-garde, something that would only be lived through for several centuries, and as such are also incomprehensible to contemporaries. His scientific and innovative approach was represented even in his works of art, which besides artistic value, have a hidden scientific, timeleless and mathematical message. He was known for encrypted writing, abbreviations, and one of these well-known techniques is writing from right to left, but as mirror-image writing. His inventions and observations have remained coded in many different codes, which are to the common reader incomprehensible, and without logic.
Answer:
Foreign aid, sanctions, diplomacy environmental policy, Trade, and global military/defense.
