Sky lanterns, also known as Kongming Lantern are airborne paper lanterns traditionally found in some Asian cultures. They are constructed from oiled rice paper on a bamboo frame, and contain a small candle or fuel cell composed of a waxy flammable material. When lit, the flame heats the air inside the lantern, thus lowering its density causing the lantern to rise into the air. The sky lantern is only airborne for as long as the flame stays alight, after which the lantern floats back to the ground.
Sky lanterns are also referred to as sky candles or fire balloons, however the latter term is also used to refer to balloon munitions used during World War II.
Lanterns have proved extremely unpopular with farmers in many countries due to the potential for causing crop fires and the chance of death of livestock on consuming the lantern remains upon landing.
