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This is Scientific American 60-Second Science. I'm Cynthia Graber. This'll just take a minute.

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Iconic works of art get exhibited worldwide.

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But as those paintings age, they can become too fragile to withstand travel around the globe.

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The paint can be visually examined to gauge its integrity.

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But the only way to check the canvas had been to remove a piece destructively.

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So a team of researchers in Europe devised a new method for diagnosing the health of old paintings similar to testing blood sugar without using a needle.

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The scientists took samples from nearly 200 old canvases or canvas linings from the 19th and 20th centuries.

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They shined infrared light on the fabric to assess the type of fibers and their relative fragility.

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With those results as a reference, the scientists then scanned 12 paintings by Salvador Dalí.

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Luckily, all 12 are still in stable traveling condition.

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But they found that the oldest Dalís are starting to weaken.

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The research is in the journal Analytical Methods.

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The scientists stress that the technique has only been validated for 19th- and 20th-century canvases with no synthetic fibers.

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But Dalí would have appreciated this marriage of science and art.

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After all, one of his works is called Homage to Crick and Watson.

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Thanks for the minute, for Scientific American 60-Second Science. I'm Cynthia Graber.

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