A rainbow is a meteorological phenomenon that is caused by reflection, refraction and dispersion of light in water droplets resulting in a spectrum of light appearing in the sky. It takes the form of a multicoloured circular arc. Rainbows caused by sunlight always appear in the section of sky directly opposite the sun. Rainbows can be full circles. However, the observer normally sees only an arc formed […]
The Batak Dam (Bulgarian: язовир Батак) is located in the Rhodope Mountains and is the third largest in Bulgaria. It attracts many tourists and fishermen, and the resort Tsigov Chark was built on its shore. The lake is situated just above the historic town of the same name. There is a hydro-electric power plant at Batak, and it is close to Pazardzhik and Plovdiv.