
The heavy-duty pioneers
The sound of freedom
The science of silence
Bypassing the eardrum
YOUR GOAL
Master of How headphones changed the way we hear the world
joy The Heavy-Duty Pioneers
Operators wore ten pounds of brass on their spine, Plugging jacks to keep the calls along the line.

joy Baldwin originally designed a headset for temple sermons, prompting the US Navy to buy 100 pairs for their

joy A family holds stethoscope-style metal receivers to their ears under warm, dramatic lighting.

joy Match vintage radio headsets to discover how early pioneers built the first rugged headphones.
Heavy metal: The first telephone operator headsets in 1881 weighed over 10 pounds, which is about the same weight as an average bowling ball!
Which organization was the first major buyer of Nathaniel Baldwin's kitchen-made headphones?
What did the subscription-based Electrophone service in 1890s London allow users to do?
