When and why did the first combine in the human history appear? What is the invention history?
Analyzing the display revealed a number of interesting laws which are not always obvious.
We are focused on a telephone set not as a system for transmitting and receiving voice information but on a telephone set as a final element of the entire process, which is in direct contact with a user.
Versions of the aircraft propulsive device ranged according to a certain evolution trend.
The history of pillow evolution from Georgy Severinets.
The wheel is a greatest invention of the mankind. Let us try to restore the process of its invention and improvement.
A simple and understandable object – a tooth brush – has innumerous versions. Nevertheless, the versions can be classified and structured according to the trends of engineering systems evolution.
The history of chair evolution in terms of performance of its main function – supporting the body of a sitting man.