Inventions+and+advancements+in+medicine+1922

Technology:
//__ Radio provided a cheap and convenient way of conveying information and ideas. It brought the nation together and it brought a whole new way for people to communicate and interact. __//
 * The first public radio broadcasting station opened in Pittsburgh, 1922

__The largest public demonstration of such as system took place on Armistice Day for the national broadcast of the burial of the Unknown Soldier at Arlington Cemetery, heard over 80 loudspeakers linked by telephone lines in New York, San Francisco, and Arlington.__
 * 540AW speakers developed by N. H. Ricker Oct. 6, 1922.



Medicine:
__ What was once a death sentence, people now diagnosed with diabetes can live long lives thanks to the work of these men. __ before using insuline after using insuline
 * John J.R. McLeod and James Collip at the University of Toronto help them purify an extract, and in 1922, insulin saves the life of 14-year-old Leonard Thompson. Within a year, the manufactured protein becomes available worldwide.