1948 Summer Olympics torch relay then run through Switzerland and France. The route was modified only when Luxembourg and Belgium both requested that the torch travel their territories. A longer Greek route was planned, but reduced from an expected down to due to concerns over instability in the country and a lack of security. The torch lighting ceremony took place on 17 July 1948 in Olympia, Greece. As with the 1936 Summer Olympic relay, the torch relay was begun by focusing the sun's rays onto kindling using a parabolic reflector, which then lit the first torch. The kindling was conducted by a Girl Guide leader
London 2012 Olympic Torch torchbearer runs. The torch has two layers: an inner and an outer 'skin' with 3,600 and 4,400 holes respectively, held in place by a top and a bottom casting. The pattern created by the perforations and the overlapping layers was inspired by the Olympic rings. The components are laser-welded together and the holes are laser cut. The London 2012 Torch is one of the lightest Olympic torches. It is made from gold PVD-finished aluminium. A torch was produced for every torchbearer (8,000); each weighs around and stands tall. The weight was achieved to ensure the torch was able to be