Three-masted sailing ships represent a decisive stage in the evolution of maritime technology, combining increased carrying capacity with improved navigational reliability for long-distance voyages. Vessels rigged with square...
Salinisation refers to the progressive increase in the salt content of water bodies, soils or landscapes, a process that can occur naturally or as a result of human...
Satellite radio is a specialised broadcasting service in which digital audio signals are transmitted from orbiting satellites to receivers on the ground. Defined by the International Telecommunication Union...
A satrap was the provincial governor in the administrative systems of the Median kingdom, the Achaemenid Empire and several of its political successors, including the Hellenistic dynasties and...
A scar is an area of fibrous tissue that replaces normal skin or other biological structures following injury. Scarring represents the final phase of the body’s wound-repair mechanism,...
A science museum is an institution dedicated primarily to the display, interpretation and communication of scientific knowledge. Earlier museums of this type often featured static exhibits associated with...
A science-fiction fanzine is an amateur or semi-professional periodical created by members of science-fiction fandom, produced from the 1930s to the present. As one of the earliest and...
The Sea of Azov is a shallow inland sea of Eastern Europe connected to the Black Sea by the narrow Strait of Kerch. Sometimes described as the northern...
The Sea of Galilee, also known as Lake Tiberias, Gennesaret Lake or Kinneret, is a freshwater lake situated in northern Israel. It is the lowest freshwater lake on...
