QWERTY is the name for the layout of typewriter keys.
RADAR/Doppler RADAR
The history of RADAR and Doppler RADAR.
Radio
The history of the radio.
Radiovision
Charles Jenkins invented a mechanical television system called radiovision and claimed to
have transmitted the earliest moving silhouette images on June 14, 1923.
Railroad Related
The history of railroads and railroad related innovations. See - Also First Steam Powered
Locomotives
Rain Gauge
King Munjong invented a rain gauge for measuring rainfall.
RAM, Computer memory
Intel's 1103 was the world's first available dynamic RAM chip.
Razors
The history of shaving time line - safety razors, mechanical razors, electric razors, razors
for women and more.
Reaper - General History
Early American pioneers had only a sickle or a scythe with which to cut down and harvest
their grain before reapers were invented.
Reaper - Cyrus McCormick
In 1831, Cyrus McCormick invented the first commercially successful reaper, a horse-
drawn machine that harvested wheat.
Refrigerators
The history of this famous kitchen appliance.
Remote Controls
The first television remote control called "Lazy Bones" was invented in 1950 by Zenith.
Respirators
The first respirator was called the "iron lung". It was invented by Philip Drinker and Louis
Agassiz Shaw in 1927.
Restaurants
The history of restaurants and famous restaurant chains.
Revolvers
The history of the revolver.
Road Related
The history of roads and asphalt and the invention of traffic management.
Robot History
Introduction to robotics and few famous first robots. See Also - Definition of a Robot,
Timeline, Photo Gallery
Rockets (Missiles)
ron
(Ron)
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