-
Used to record the human voice by tracing sound waves on smoke-blackened paper or glass. Could not be played back at the time.
-
-
The graphophone, which uses wax-coated cardboard tubes instead of tinfoil, engraves sound waves.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
A list shows items. A timeline shows sequence.
Use Timetoast to make dates, milestones, and turning points easier to understand in a clear visual format. Timetoast is a timeline maker for work, school, research, and stories.