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
Sport Aid Global Special Events, UNICEF). A central event was the lighting of a symbolic torch at the United Nations by Omar Khalifa, a champion Sudanese 1500m runner to signal the start the 10K races around the world. Khalifa began his journey to the United Nations on May 16, when he lit a torch from the embers of fire in El Moweilih relief camp in the Sudan. He was then flown to Athens where the torch of Africa and the Olympic torch were symbolically joined. This was the first time the Olympic torch had been lit outside of an Olympic Games. He