Help make Alexa smarter on Alexa Answers. Sign in with Amazon

Science

What was thomas edison's first invention?


Thomas Edison’s first great invention was the tin foil phonograph. While working to improve the efficiency of a telegraph transmitter, he noticed that the tape of the machine gave off a noise that resembled spoken words when played at a high speed.

{{ relativeTimeResolver(1582697552332) }}

LIVE
Points points 191
Rating 0

Similar Questions
Sign in to view all similar questions

Join Alexa Answers

Help make Alexa smarter and share your knowledge with the world

LEARN MORE