phonograph

Product

Invented by Thomas Edison, allegedly intended to help blind people, but later used for music.

Mentioned in 1 video

Videos Mentioning phonograph

Factors That Affect Productivity in the Economy, w/ Michael Boskin (Ch. 1) | LFHSPBC

Factors That Affect Productivity in the Economy, w/ Michael Boskin (Ch. 1) | LFHSPBC

PolicyEd

Invented by Thomas Edison, allegedly intended to help blind people, but later used for music.