Year
In what year was the first convertible built?
1922
Who invented the instant camera?
Samuel Shlafrock
What was the instant camera?
It was a camera that would print out pictures immediatly
In what year was the drive-in restaurant first built?
1921
Who invented the automatic watch?
John Harwood
What was a drive-in restauarant?
In what year was the first audiometer built?
1922
Who invented the refrigerator?
Fred W. Wolf
What is an earth inductor compass?
A compass that determines directions using the principle of electromagnetic induction, with the Earth's magnetic field acting as the induction field for an electric generator
In what year was the first television invented?
1925
Who invented the traffic signal?
Garret Morgan
What was an automatic watch?
It is a watch that moves on its own without anyone having to move it.
In what year was the first automatic watch built?
1923
Who invented frozen food?
Clarence Birdseye
What is an audiometer?
Measures and evaluates hearing loss