Couched between International Day of Women and Girls in Science (February 11) and International Women's Day (March 8), now is an excellent time to recognize the role of women in engineering with this episode of SciShow; as host Hank Green notes, "we really can't talk about women in STEM enough." In this brief video, viewers are introduced to five stellar women in engineering. Many readers are relying on WiFi to read this, and in part, people have Hedy Lamarr to thank for this ability. Lamarr, who received recognition for her work as an actress, was also responsible for strides in the realm of "frequency hopping spread spectrum," a signal system embedded in modern WiFi security. Adventure aficionados can thank Olive Wetzel Dennis for her work to "set a new standard for comfortable travel." Annie Easley was a key member of NASA's computing team, and her coding work built a foundation for today's hybrid car batteries. Lynn Conway is a scholar and social activist responsible for microchip design engineering that "kickstarted" current computers and cell phones. Finally, Treena Livingston Arinzeh is moving modern medicine forward with her stem cell research, and she is multiplying her impact by mentoring future engineers. This episode was supported by Emerson.