Social Networks and Popular Understanding of Science and Health: Sharing Disparities

Brian G. Southwell

A chorus of voices is celebrating the potential of social media and other new peer-to-peer connection technologies for teaching people about science and health in the 21st century. Rather than encouraging equity in what we all know and think about scientific discoveries, household consumer tips, the latest health recommendations, or opportunities for medical services, systematic reliance on social networks to spread information may nonetheless be a recipe for inequity. An increasing body of research suggests that people are not equal in their tendency to share information with others around them. In general, people do not take advantage of the chance to share ideas with others, a paradox in our current era of apparent information abundance. But it also appears that some people are much less likely than others to share information. Some of the differences in peer-to-peer sharing represent disparity in that information sharing is constrained unjustly by factors outside of a person’s immediate control. This book explains why these information-sharing patterns persist, why they matter to society, and what, if anything, can be done to address these tendencies.

Suggested Citation

Southwell, B.G. (2013). Social Networks and Popular Understanding of Science and Health: Sharing Disparities: RTI Press Publication No. BK-0011-1307. Baltimore, MD and Research Triangle Park, NC: Johns Hopkins University Press and RTI Press.


“This is an outstanding resource for everyone who is interested in aerosol research—ranging from a novice to an accomplished scholar. Historic and technical aspects described in the book are well balanced. Life stories of the

pioneers of aerosol science, many whom I was privileged to know personally, are truly fascinating as they portray remarkable facets of their characters.”

—Sergey Grinshpun

“Several of my favorites include a biography of Othmar Preining, a history of nanoaerosol measurements from the 1800s to the present, and three chapters related to California outdoor aerosol measurement experiments from 1969–1973. I could not begin any of those chapters without finishing it. It is fascinating to look back at the key decisions and important turning points in the direction of our science.”

—Gilmore J. Sem

“One of the best features of this book is that it avoids overlap with the two earlier treatises. Consequently, it nicely complements our record of the history of aerosol science and technology. It is a book that should be on the shelf of any aerosol researcher who appreciates the contributions of our aerosol forefathers.”

—E. James Davis

“Interesting and fun to read, this book goes a long way in bringing to life the scientific tributaries to our science, the wealth of creative ideas, and the people behind them. It also shows how far these pioneers of aerosol science went with so little in terms of equipment and technology.”

—Gerhard Kasper

“Interesting insights into people and topical areas that have helped to shape modern aerosol science.”

—Philip K. Hopke

Brian G. Southwell

Brian Southwell, PhD, directs the Science in the Public Sphere program in the Center for Communication Science at RTI International. His large-scale evaluation work has spanned behaviors and audiences, including cancer prevention and screening promotion efforts, national campaigns to discourage drug and tobacco use, efforts to bolster television news coverage of science, and various state-level campaigns. He also has studied public understanding of energy and related topics. Dr. Southwell holds faculty appointments at Duke University (through Duke’s Energy Initiative) and at the University of North Carolina at Chapel Hill and also hosts the public radio show "The Measure of Everyday Life" on WNCU.