In swimming, especially training out in the ocean and open water, you got fogged-over goggles, you're stuck with your own thoughts - there's great benefits to that, deep thinking like that after many hours, but there's also tremendous loneliness. You… — Diana Nyad Copy Share Image
We found out the Gemini spacesuit was, well, oxygen was flowing to keep me cool as well as to breathe, and it wasn't good enough. My visor got fogged. — Eugene Cernan Copy Share Image
