The Arriflex motion camera An account on the history and function of the first mirror reflex motion camera. Read More
The career of the mobile phone Short information on the history and the function of mobile phones. Read More
The Linotype typesetting machnine A short description of the invention and the function of the typesetting machine. Read More
Voith Francis turbine A short description of an early Francis turbine built by Voith in 1886. Read More
Voith Pelton turbine A short description of a historical Pelton turbine built by Voith in 1906. Read More