Burning glass extremely high temperatures without the need for fuel or large supplies of electricity. They sometimes employ a large parabolic array of mirrors (some facilities are several stories high) to focus light to a high intensity. The Olympic torch that is carried around the host country of the Olympic Games is lit by a burning glass, at the site of ancient Olympia in Greece. Burning glass A burning glass or burning lens is a large convex lens that can concentrate the sun's rays onto a small area, heating up the area and thus resulting in ignition of the exposed surface. Burning
London 2012 Olympic Torch gripped, as does its textured surface, which is perforated with 8,000 holes. The holes represent the 8,000 runners in the London 2012 Torch Relay and the relay distance. Functionally, they reduce the torch's overall weight and ensure that heat from its flame is dissipated without conducting down the handle. They create a level of transparency in the torch, where one can see through to the flame and burner mechanism, and they also allow a 'fuller' flame that escapes from all sides of the Torch, rather than solely from the top, where the flame can tend to be flattened when a