Within the project “Creators” T-invariant together with RASA (Russian-American Science Association) continues to publish a series of biographical essays about people from Russian Empire, who made a significant contribution to world science and technology. Alexander Petrunkevitch was born in the Chernigov Governorate, but most of his life he worked at Yale University. He became especially famous for his research on arachnids.

Within the project “Creators” T-invariant together with RASA (Russian-American Science Association) continues to publish a series of biographical essays about people from Russian Empire, who made a significant contribution to world science and technology. The essay is dedicated to astronomer Alexander Vysotsky. He had worked at the observatory of the University of Virginia. There he compiled the first catalogue of red dwarfs and experimentally confirmed the rotation of our Galaxy.

His ideal was a quiet university job, but life made him a “merchant of death.” Georgy Kistyakowsky’s name does not appear in a history textbook. But it was his knowledge that helped turn the tide of World War II and influenced the policies of one of the two superpowers. Though it wasn’t even his homeland.