The eighth essay from the “Creators” series is dedicated to Stepan Timoshenko , an outstanding mechanical scientist, engineer, one of the creators of the theory of strength of materials. In the “Creators” project T-invariant together with RASA (Russian-American Science Association) continues to publish a series of biographical essays about people from the Russian Empire who made significant contributions to world science and technology, about those to whom we owe our new reality.

The seventh essay in the “Creators” series is dedicatedIgor Sikorsky , an outstanding engineer, pilot, one of the founders of modern aviation. He was born in Kyiv. He built airplanes and helicopters in St. Petersburg and America. And wherever he was, there was a sky above all cities, countries and continents, in which he laid his “air paths”. In the “Creators” project T-invariant together with RASA (Russian-American Science Association) continues to publish a series of biographical essays about people from the Russian Empire who made significant contributions to world science and technology, about those to whom we owe our new reality.

The sixth essay in the “Creators” series is dedicated to Tamara Dembo, an outstanding psychologist whose work on the study of “Anger as a dynamic problem” and the rehabilitation of people with disabilities remains scientifically relevant to this day. Dembo was born in Baku, studied with one of the founders of Gestalt psychology, Kurt Lewin, in the 1920s and worked for many years at American universities. In the “Creators” project together with RASA (Russian-American Science Association) T-invariant continues to publish a series of biographical essays about people from the Russian Empire who made significant contributions to world science and technology, about those to whom we owe our new reality.

The fifth essay in the “Creators” series is dedicated to Vladimir (Waldemar) Haffkine, the creator of the first effective vaccines against cholera and plague. At the end of the 19th century, Haffkine carried out the first mass vaccination in India. His laboratories have developed and produced tens of millions of doses of cholera and plague vaccines.

T-invariant, in collaboration with RASA and with support from the Richard Lounsbery Foundation, is launching the “Creators” project. The project will publish a series of essays on immigrants from the Russian Empire who have made significant contributions to global science and technology. The first essay is dedicated to Selman Waksman, Nobel Prize winner and discoverer of streptomycin.

Arachnologist and biologist Alexander Petrunkevitch was born in Pliski, in the Chernigov Governorate, but most of his life he worked at Yale University. He became especially famous for his research on arachnids.

His ideal was a quiet university job, but life made him a «merchant of death.» George Kistiakowsky’s name does not appear in a history textbook. But it was his knowledge that helped turn the tide of the war and influenced the policies of one of the two superpowers. Though it wasn’t even his home country.

Kistiakowsky was one of the developers of the American atomic bomb. In fact, it was he who designed the trigger mechanism for the first nuclear explosion in Alamogordo, New Mexico, on July 16, 1945.