As such Europe has varying climates, topography and city-types. Europe is made up of 45 different countries which range in size from some of the largest in the world to some of the smallest.The following is a list of the countries of Europe arranged by area. 1) Russia: 6,592,771 square miles (17,075,200 sq km).2) Turkey: 302,535 square miles (783,562 sq km).s such Europe has varying climates, topography and city-types. Europe is made up of 45 different countries which range in size from some of the largest in the world to some of the smallest.
The colors of visible light, often referred to as ROY G BIV (for red, orange, yellow, green, blue, indigo, and violet), are a small portion of the entire electromagnetic spectrum. Light can be thought of as a stream of packets of energy called photons.
The violet glow of a black light is not the UV light itself, which is not visible to the human eye, but visible light that escapes being filtered out by the filter material in the glass envelope. Fluorescent body paint. Paints and decorations that fluoresce under black light are used in theater and several art forms. A blacklight (or often black light), also referred to as a UV-A light, Wood's lamp, or simply ultraviolet light, is a lamp that emits long-wave (UV-A) ultraviolet light and not much visible light.