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
1988 Winter Olympics torch relay and Cathy Priestner carrying the torch into McMahon Stadium representing the nation's current Olympians. They then stopped to acknowledge the contribution of para-athlete Rick Hansen and his "Man in Motion" tour before handing the torch to 12-year-old Robyn Perry, an aspiring figure skater who was selected to represent future Olympians, to light the cauldron. The choice of Perry was an unusual departure from most Games as the cauldron has typically been lit by a famous individual or group from the host nation. Constructed of maple and aluminum, the torch was designed to remain lit despite the sometimes adverse conditions of