History of Gallic Reaper (23.01.2006) When and why did the first combine in the human history appear? What is the invention history? Transfer to the microlevel as one of the main display evolution trends (05.06.2005) Analyzing the display revealed a number of interesting laws which are not always obvious. Evolution of the shape of telephone components (15.03.2004) 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. One of the evolution trends of an aircraft propulsive device (09.06.2003) Versions of the aircraft propulsive device ranged according to a certain evolution trend. Pillow (09.12.2002) The history of pillow evolution from Georgy Severinets. Who invented a wheel? (10.10.2002) The wheel is a greatest invention of the mankind. Let us try to restore the process of its invention and improvement. Evolution tree of tooth-brush (01.10.2002) 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. Chair: from a log to a throne (10.09.2002) The history of chair evolution in terms of performance of its main function - supporting the body of a sitting man.		Technology evolution laws are as objective and rigorous as the laws of nature. Knowing these laws allows forecasting the evolution directions of engineering systems and objects and evaluating new ideas. Evolution trends are a more specific case. Identified laws of evolution of specific systems allow one trace "lines" of their evolution. An engineering system may evolve in several directions simultaneously. In this case we speak about the "evolution tree" which is composed of several lines.