- The Ionian Sea (Modern Greek: Ιόνιο Πέλαγος, romanized: Iónio Pélagos, IPA: [iˈoni.o ˈpelaɣos]; Italian: Mar Ionio or Mar Jonio, IPA: [mar ˈjɔːnjo]; Albanian: Deti Jon, IPA: [ˈdɛti ˈjɔn]) is an elongated bay of the Mediterranean Sea. It is connected to the Adriatic Sea to the north, and is bounded by Southern Italy, including Basilicata, Calabria, Sicily, and the Salento peninsula to the west, southern Albania (and western Apulia, Italy) to the north, and the west coast of Greece, including the Peloponnese.
- Light (Wikipedia)
Light, visible light, or visible radiation is electromagnetic radiation that can be perceived by the human eye. Visible light spans the visible spectrum and is usually defined as having wavelengths in the range of 400–700 nanometres (nm), corresponding to frequencies of 750–420 terahertz. The visible band sits adjacent to the infrared (with longer wavelengths and lower frequencies) and the ultraviolet (with shorter wavelengths and higher frequencies), called collectively optical radiation.