We live in a world full of revolutionary innovations and discoveries. Our students of the second year of Secondary School traced back the facilities and machines of today and found out that most of them are advances of devices that were made well into the past.

The steam engine, the wheel, the fire, the automobile, the airplane, the telephone, the internet, electricity, the washing machine and the vacuum cleaner are some amazing examples which have had a positive impact on the development of civilisation and the utmost benefit for mankind.