Inventor that have modified our life
[Calculating Machines and Computing][Cloth and Clothing][Communication][Construction][Electricity and Electronics][Food and Agriculture][Medicine and Biotechnology][Industrial Materials][Scientific Instrument and Devices][Transportation and Energy][Warfare]
| Invention | Date | Inventor | Nationality |
|---|---|---|---|
| Hydraulic cement | 1756 | John Smeaton | English |
| Portland cement | 1824 | Joseph Aspdin | English |
| Steam hammer | 1839 | James Nasmyth | Scottish |
| Reinforced concrete | 1849 | F.J. Monier | French |
| Cylinder lock | 1860 | Linus Yale | American |
| Carborundum | 1891 | E.G. Acheson | American |
| Air conditioning | 1911 | W.H. Carrier | American |
