On this day in #BlackHistoryMonth, we honor Dr. Shirley Ann Jackson, President of RPI!

"Her experiments with theoretical physics paved the way for numerous developments in the telecommunication space including the touch-tone telephone, the portable fax, caller ID, call waiting, and the fiber-optic cable." - by @MissRosiePerez

http://bit.ly/DrSAJ

#BlackHistoryMonth

#Inventors