The engineer Marvin Camras died at the age of 79. Here is all you want to know, and more!
Biography - A Short Wiki
Engineer who created the first magnetic recording device, which paved the way for cassette tapes. He won the National Medal of Technology award in 1990 for his contributes to engineering.
He earned a M.S. from the Illinois Institute of Technology.
The U.S. Army recorded battle sounds using his invention, and played them to confuse the enemy before the D-Day Normandy landings.
He made his magnetic recorder to help his cousin, an aspiring singer.
His work helped General Dwight Eisenhower successfully carry out the invasion of Normandy in WWII.