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ETX Daily Up on MSNPaint them white: how Brazil is keeping trains on trackPaint them white: how Brazil is keeping trains on trackFew people suspect that when they board a train during a heatwave they may be risking their lives, as high temperatures can warp tracks and maybe ...
A railway company in Sao Paulo, Brazil's most populous city, claims to have found a solution: give the tracks a lick of white paint to reflect the sun's rays and prevent the steel from overheating.
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