Description: Did you know that Joseph Francis invented the first metal life-saving boat? Or that Gail Borden invented the process for creating condensed milk? Neither did I until I heard The World Is Yours episode titled “Unheraled American Inventors,” which originally aired on April 4, 1937.Where most of the episodes I’ve listened to begin with the host walking up to two people while they
Description: People use postcards to correspond with each other, but the way they have used postcards to communicate has changed over time. The postcards in this gallery show how postcards began as a quick way to send short communications between individuals, but have since evolved to be used for longer communications and for requests between academics. While the typical use for a postcard