Arctic Ozone Hole. The Ozone Layer The ozone layer is a layer in Earth's atmosphere which contains relatively high concentrations of ozone (O3). This layer absorbs 97-99% of the sun's high frequency ultraviolet light, which is potentially damaging to life on earth.
Nettie Stevens: Scientist Extraordinaire and STEM Icon; a Steampunk Feministâs Perspective Nettie Stevens If you want an example of the true grittiness and resourcefulness of the American spirit, you canât go past Nettie Stevens.
Bessie Coleman. From Wikipedia, the free encyclopedia. Bessie Queen Bess Coleman (January 26, 1892 - April 30, 1926), was the first African American woman to become an airplane pilot, and the first American woman to hold an international pilot's licence. She was also the first black licensed pilot in the world. Ms. Coleman was married briefly to Charles Wilson Pankey.