elements of practical hydraulics elements of practical construction
21Sustainable design — Sustainable urban design and innovation: Photovoltaic ombrière SUDI is an autonomous and mobile station that replenishes energy for electric vehicles using solar energy. See also: Sustainable engineering and Ecological design …
22William Unwin — Infobox Engineer image width = caption = name = William Unwin nationality = English birth date = 12 December 1838 birth place = Coggeshall, Essex death date = Death date and age|1933|3|17|1838|12|12 death place = education = City of London School …
23Cryogenics — For cryopreservation/resuscitation, see Cryonics. For the band, see Cryogenic (band). In physics, cryogenics is the study of the production of very low temperature (below −150 °C, −238 °F or 123 K) and the behavior of materials at those… …
24Metallurgy — Georg Agricola, author of De re metallica, an important early book on metal extraction Metallurgy is a domain of materials science that studies the physical and chemical behavior of metallic elements, their intermetallic compounds, and their… …
25Flow measurement — is the quantification of bulk fluid movement. Flow can be measured in a variety of ways. Positive displacement flow meters acumulate a fixed volume of fluid and then count the number of times the volume is filled to measure flow. Other flow… …
26Dumbarton Oaks — mansion The Founta …
27Batavian Republic — Infobox Former Country native name = Bataafse Republiek conventional long name = Batavian Republic common name = Batavian Republic continent = Europe region = Low Countries country = Netherlands era = status = Client status text = Client of the… …
28History of robots — The history of robots date at least as far back as the ancient legends.Robotics in AntiquityLikely fictional, the Iliad illustrates the concept of robotics by stating that the god Hephaestus made talking mechanical handmaidens out of gold. cite… …
29Treeplanting — is the process of transplanting tree seedlings, generally for forestry, land reclamation, or landscaping purposes. It differs from the transplantation of larger trees in arboriculture, and the lower cost but slower and less reliable distribution… …
