is a free-lance science writer and editor based in the Chicago area. She can be reached at jane@janemarieandrew.com. Reprinted with permission from the August 2019 issue of Tribology & Lubrication Technology (TLT), the monthly magazine of the Society of Tribologists and Lubrication Engineers (STLE), an international not-for-profit professional society headquartered in Park Ridge, Illinois, www.stle.org.