Mandalay (Burmese: မန္တလေး; MLCTS: manta.le:[màɴdəlé]; English: /ˌmændəˈleɪ/ or /ˈmændəleɪ/) is the second-largest city and the last royal capital of Burma. Located 445 miles (716 km) north of Yangon on the east bank of the Irrawaddy River, the city has a population of one million, and is the capital of Mandalay Region.
Mandalay is the economic hub of Upper Burma and considered the centre of Burmese culture. A continuing influx of Chinese immigrants, mostly from Yunnan Province, in the past twenty years, has reshaped the city's ethnic makeup and increased commerce with China. Despite Naypyidaw's recent rise, Mandalay remains Upper Burma's main commercial, educational and health centre.
Reflection is the change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it originated. Common examples include the reflection of light, sound and water waves. The law of reflection says that for specular reflection the angle at which the wave is incident on the surface equals the angle at which it is reflected. Mirrors exhibit specular reflection.
In acoustics, reflection causes echoes and is used in sonar. In geology, it is important in the study of seismic waves. Reflection is observed with surface waves in bodies of water. Reflection is observed with many types of electromagnetic wave, besides visible light. Reflection of VHF and higher frequencies is important for radio transmission and for radar. Even hard X-rays and gamma rays can be reflected at shallow angles with special "grazing" mirrors.