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
1948 Summer Olympics torch relay final few hundred yards of the relay down Olympic Way outside of Empire Stadium as the pressure of the crowds on the torch carrier and their escorts reduced the pace to walking speed. Special celebrations were held at each border crossing, and at Pierre de Coubertin's tomb in Lausanne, Switzerland. It was agreed for a secondary Olympic Flame to be lit in Torquay during the games, and a secondary torch relay was conducted to take the flame from Wembley south to the coast to Torquay. The arrangements were the same as from Dover to Wembley but in reverse. 1948 Summer