A London skyscraper
dubbed the Walkie-Talkie has been blamed for reflecting light which
melted parts of a car parked on a nearby street. What happened?
It's like starting a fire with a parabolic mirror. "Fundamentally it's reflection. If a building creates enough of a curve with a series of flat windows, which act like mirrors, the reflections all converge at one point, focusing and concentrating the light," says Chris Shepherd, from the Institute of Physics.
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