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
2010 Summer Youth Olympics torch relay Kuan Yew lit the cauldron at Marina Bay. However, the Youth Olympic flame was to last till the closing ceremony of the games. Although the IOC had scrapped any further international legs of the Olympic torch relay due to problems encountered during the 2008 Summer Olympics torch relay, the Executive Board approved an exception for Singapore. The plan however was different from the traditional Olympics; the flame was to visit one city from each continent, where community celebrations would take place. The five cities, dubbed the "celebration cities", selected for the torch relay were Berlin, Germany; Dakar, Senegal; Mexico City,