WaterfallA waterfall is any point in a river or stream where water flows over a vertical drop or a series of steep drops. Waterfalls also occur where meltwater drops over the edge of a tabular iceberg or ice shelf. Waterfalls can be formed in several ways, but the most common method of formation is that a river courses over a top layer of resistant bedrock before falling on to softer rock, which erodes faster, leading to an increasingly high fall. Waterfalls have been studied for their impact on species living in and around them.
Swimming poolA swimming pool, swimming bath, wading pool, paddling pool, or simply pool, is a structure designed to hold water to enable swimming or other leisure activities. Pools can be built into the ground (in-ground pools) or built above ground (as a freestanding construction or as part of a building or other larger structure), and may be found as a feature aboard ocean-liners and cruise ships.
Stream poolA stream pool, in hydrology, is a stretch of a river or stream in which the water depth is above average and the water velocity is below average. A stream pool may be bedded with sediment or armoured with gravel, and in some cases the pool formations may have been formed as basins in exposed bedrock formations. Plunge pools, or plunge basins, are stream pools formed by the action of waterfalls. Pools are often formed on the outside of a bend in a meandering river.
HaliacmonThe Haliacmon (Αλιάκμονας, Aliákmonas; formerly: Ἁλιάκμων, Aliákmon or Haliákmōn) is the longest river flowing entirely in Greece, with a total length of . In Greece there are three rivers longer than Haliakmon, Maritsa (Έβρος), Struma (Strymónas), both coming from Bulgaria, and Vardar (Αξιός) coming from North Macedonia, but the length of each one of them in Greek territory is less than that of Haliakmon, which flows entirely in Greece.
100-year floodA 100-year flood is a flood event that has on average a 1 in 100 chance (1% probability) of being equaled or exceeded in any given year. The 100-year flood is also referred to as the 1% flood. For coastal or lake flooding, the 100-year flood is generally expressed as a flood elevation or depth, and may include wave effects. For river systems, the 100-year flood is generally expressed as a flowrate. Based on the expected 100-year flood flow rate, the flood water level can be mapped as an area of inundation.
History of GreeceThe history of Greece encompasses the history of the territory of the modern nation-state of Greece as well as that of the Greek people and the areas they inhabited and ruled historically. The scope of Greek habitation and rule has varied throughout the ages and as a result, the history of Greece is similarly elastic in what it includes. Generally, the history of Greece is divided into the following periods: Paleolithic Greece, starting 3.3 million years ago and ending in 20000 BC.
Genesis flood narrativeThe Genesis flood narrative (chapters 6–9 of the Book of Genesis) is a Hebrew flood myth. It tells of God's decision to return the universe to its pre-creation state of watery chaos and remake it through the microcosm of Noah's ark. The Book of Genesis was probably composed around the 5th century BCE, although some scholars believe that Primeval history (chapters 1–11), including the flood narrative, may have been composed and added as late as the 3rd century BCE.
SaunaA sauna (ˈsɔːnə,_ˈsaʊnə, ˈsɑu̯nɑ), or sudatory, is a small room or building designed as a place to experience dry or wet heat sessions, or an establishment with one or more of these facilities. The steam and high heat make the bathers perspire. A thermometer in a sauna is typically used to measure temperature; a hygrometer can be used to measure levels of humidity or steam. Infrared therapy is often referred to as a type of sauna, but according to the Finnish sauna organisations, infrared is not a sauna.
Autonomous Republic of Northern EpirusThe Autonomous Republic of Northern Epirus (Αὐτόνομος Δημοκρατία τῆς Βορείου Ἠπείρου) was a short-lived, self-governing entity founded in the aftermath of the Balkan Wars on 28 February 1914, by the local Greek population in southern Albania (Northern Epirotes). The area, known as Northern Epirus (Βόρειος Ήπειρος) to Greeks and with a substantial Greek population, was taken by the Greek Army from the Ottoman Empire during the First Balkan War (1912–1913). The Protocol of Florence, however, had assigned it to the newly established Albanian state.
Physical layerIn the seven-layer OSI model of computer networking, the physical layer or layer 1 is the first and lowest layer: the layer most closely associated with the physical connection between devices. The physical layer provides an electrical, mechanical, and procedural interface to the transmission medium. The shapes and properties of the electrical connectors, the frequencies to broadcast on, the line code to use and similar low-level parameters, are specified by the physical layer.
