Re:Slava Ukraine! (Score 1)

Plenty exist in the forefront of modern life:

• Stephan Timoshenko - Strength of Materials, theories of plates & shells, theory of structures and advanced dynamics. Can't get out of a civil engineering program w/o learning about this guy.
• Ihor Sikorsky - "the Father of the Helicopter" - born in Kyiv
• William Dzus - in 1932 invented a screw fastener that did not become loose under vibration. The Dzus fastener was used on aircraft and military vehicles and greatly helped the American World War II effort.