Science
What was the first sound-recording device called?
More Questions from Science
What is the term given to heat and light radiated from the sun?
Reveal Answer
What is the world's largest non-profit, scientific and educational organization?
Reveal Answer
Which form of energy can we see with the naked eye?
Reveal Answer
What is a return of the electron beam to the top of a television picture tube?
Reveal Answer
During the seventeen hundreds, what creature was thought to excrete blood through its skin?
Reveal Answer