Portrait of James Watt,Scottish engineer
Numéro d’image : 11831542
| James Watt. Portrait of James Watt (1736-1819),Scottish engineer and inventor. Watt made many practical improvements to the steam engine of his day. By 1790 the superior Watt steam engine had completely replaced the older Newcomen variety. His inventions included the double acting engine where the piston is made to both push and pull (1782); the centrifugal governor,a device that controlled a process by means of variations in the process itself (1788); and the pressure gauge (1790). Watt also coined the term "horsepower" to describe a unit of energy. Watt's innovations,coupled with the business acumen of his partner Matthew Boulton,made him financially successful | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Bernard, George |
| Taille de l’image : | 2686 px × 3916 px |
| Model Release : | Le droit n'est pas encore disponible. Merci de nous contacter avant utilisation. |
| Property Release : | Non requis |
| Restrictions : | - |
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