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Lasers clean old buildings.

Series: Scotsman ; 16 June 1999, 22(1)Publication details: 1999Subject(s): Summary: A laser has been developed capable of cleaning dirt from old buildings without damaging the stonework underneath. Further tests are needed to see if the laser can be a viable alternative to current treatments such as sand blasting and chemical cleaning.

A laser has been developed capable of cleaning dirt from old buildings without damaging the stonework underneath. Further tests are needed to see if the laser can be a viable alternative to current treatments such as sand blasting and chemical cleaning.