January 17, 1882: Carbon Microphone for Telephone

Thomas Alva Edison

Thomas Alva Edison

1882 – Thomas Edison created more tech history when he was granted a patent for the carbon microphone for the telephone. The carbon was in between two cups and attached to the mouthpiece. The diaphragm would change pressure, causing the carbon to be pushed upon. That would send electric current to the other end – which would transpose it back to audio.

Wikazine – Full show notes for January 17

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Jeffrey Powers @geekazine

I love tech history. I enjoy how we evolved from computers that fill a room to computers we wear on our bodies. I have put a full archive of tech history together at Wikazine. You can also talk history at Google +. I am also a podcaster and V-caster at Geekazine and a Podcast Coach at How to Record Podcasts. You can also sign up for a Helpout

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