ScienceSung and unsung heroines of science03:03This browser does not support the video element.Science02/15/2019February 15, 2019The history of science is usually portrayed as the history of male scientists. But women have also played crucial roles in science. We travel in time, from the world's first chemist more than 3,000 years ago to a 2018 physics Nobel laureate. Copy linkAdvertisement