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Well it's physics and current so I guess this is the place for it.
London especially the City area is changing fast by new construction; you would notice if you hadn't been for a few years, even one or two.
In a new construction apparently the architects didn't think of the focussing mirror effect of a curved building. It set things on fire, melted a guy's car, and the BBC News film showed people frying eggs in the focus, temperatures of 50 deg. were measured (don't ask me).
It's like the legend of Archimedes, I think it is considered a legend but was it based on something?
http://www.bbc.co.uk/news/uk-england-london-23957986
London especially the City area is changing fast by new construction; you would notice if you hadn't been for a few years, even one or two.
In a new construction apparently the architects didn't think of the focussing mirror effect of a curved building. It set things on fire, melted a guy's car, and the BBC News film showed people frying eggs in the focus, temperatures of 50 deg. were measured (don't ask me).
It's like the legend of Archimedes, I think it is considered a legend but was it based on something?
http://www.bbc.co.uk/news/uk-england-london-23957986