-
Period: to
technology creations of the 1920s
-
The Polygraph Test
The creator of the Polygraph test machine is named John Larson in 1921. this device is still used as a means to assist in investigations and police questioning. -
tractor bulldozer
James Cunning and Earl McLeod are credited with inventing the tractor in 1923. the agricultural significance is still felt today on the heavy reliance on these vehicles to grow large industrial crops. -
electric automatic traffic signal
Garett Morgan created the electric automatic traffic signal in 1923. He sold the patent to General Motors for 40,000 dollars, and its use today is critical for the smooth flow of traffic to prevent accidents. -
general electric fridgetaire
in 1927, the popularity of the in home refrigerator drastically increased the quality of life for many. Created by General Electric, this addition to the American Home was an icon in its era. -
Electronic Television
The world’s first electronic television was created by Philo Taylor Farnsworth in 1927. This design was the first model that would one day become our current televisions we enjoy in our homes.