Developments, discoveries, and inventions in the High…
1684 CE
to 1827 CE
Developments, discoveries, and inventions in the High Modern age include gas lighting, the planet Uranus, the pigment Prussian blue, the four-color printing process, mercury thermometers in Fahrenheit, automatons, electrical machines, modern eyeglasses, bifocals, steam power, longitude, the element hydrogen, ballooning, photography, rubber products, torpedoes, submarines, and mechanical guns.
