Radio Hat
Created by an American inventor in the 1940s, the radio hat was a portable radio built into a pith helmet that could bring in stations within a 20-mile radius.
One wheel motorcycle
The one wheel motorcycle was invented by M. Goventosa de Udine. It had an impressive maximum speed of 93 mph.
Electrically heated jacket
Developed for U.S. traffic police, the electrically heated jacket had power that was supplied by electric contacts in the street.
Early GPS
This old fashioned GPS worked using a rolling key map. The map passed the screen in a tempo that depended on the speed of the car.
Space chimp
After a very successful mission to space in 1961, this space chimp was more than happy to smile for the camera.
Testing bulletproof vests
Back in 1923, this was one way to see if bulletproof vests were in fact bullet-proof.
Prosthetics
A little girl with artificial legs in 1890.
Faxed newspaper
The first wireless newspaper was sent from WOR radiostation in New York in 1938. The photo shows children reading the children's page of a Missouri paper.
Revolver camera
This Colt 38 carried a small camera that automatically took pictures when the trigger was pulled.
Bulletproof glass
The best rifleman of the New York police demonstrated how bulletproof glass worked in 1931. The man on the other side must have felt very lucky.
Glasses for reading before bed
Hopefully wearing these didn't give other members of the household nightmares.
The Hubbard Electrometer
The Hubbard Electrometer was invented to measure the pain felt by fruits and vegetables.
Phone-answering robot
Just in case you weren't home, this guy would take your call.
Images via pulptastic.com, boredpanda.com, and emorfes.com.
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