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As luck would have it, Dr Borra came across a suitable class of materials.
ECONOMIST: Mirror, mirror
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One of the leading proponents of the liquid-mirror approach is Ermanno Borra, a physicist at Laval University in Quebec.
ECONOMIST: Mirror, mirror
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LMTs, Dr Borra is doing his best to overcome their inability to point.
ECONOMIST: Mirror, mirror
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Dr Borra worked out just how viscous the liquid would need to be, and found that it had to be the consistency of thick honey.
ECONOMIST: Mirror, mirror
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By far the most famous exponent was a bushy-haired Serbian named Borislav Milojkowic, who went by the stage name Borra, King of the Pickpockets, and became a star of night clubs and circuses throughout Europe.
NEWYORKER: A Pickpocket��s Tale
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So far, Dr Borra has achieved a reflectivity of 50% (that is, half of the light falling on the mirror is reflected), but he is confident that he will be able to equal the 80% reflectivity of mercury.
ECONOMIST: Mirror, mirror