In what year did Oberlin Smith originate the idea of using permanent magnetic impressions to record sound?
A. 1880
B. 1888
C. 1900
D. 1908
Show Answer
Answer: B
Share your understanding of this question with the correct explanation.
In what year did Oberlin Smith originate the idea of using permanent magnetic impressions to record sound?
A. 1880
B. 1888
C. 1900
D. 1908
Answer: B
Share your understanding of this question with the correct explanation.