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Crystal clarity wins Chemistry Nobel

Israeli scientist Daniel Shechtman Wednesday won the 2011 Nobel Prize for Chemistry for the secret of quasicrystals, an atomic mosaic whose discovery overturned theories about solids.

Shechtman, aged 70, ran into fierce hostility among fellow chemists after making a eureka-like discovery

in 1982 that at the time was dismissed as laughable.

Today, his work 'has fundamentally altered how chemists conceive of solid matter,' the Nobel jury said.

'It's a paradigm shift in chemistry. His findings have rewritten the first chapter of textbooks of ordered matter,' Sven Lidin, a member of the Nobel Committee for Chemistry, said in a separate tribute.

Quasicrystals are crystals whose atomic pattern is highly geometrical yet never repeats. To the untutored eye, they look strikingly similar to the tiled patterns of abstract Islamic art.

His exploit can be pinpointed to April 8, 1982, one of the extremely rare examples when a scientific breakthrough can be dated to a moment in time.

He had melted a mix of aluminium and manganese and then rapidly chilled it before studying the outcome at the atomic level under the electron microscope.

Expecting to see disorder, Shechtman instead saw concentric circles, each made of 10 bright dots the same distance from each other.

Four or six dots in the circles would have been possible, but absolutely not 10 — a finding that caused him to say out loud in Hebrew, 'There can be no such creature'. He wrote in his notebook, '10 Fold???'

'It was forbidden by the paradigm, by the rules that the International Union of Crystallographers had created,' Shechtman said in a previous interview with the Israel Institute of Technology in Haifa where he is a professor, and rebroadcast by Swedish radio on Wednesday.

'I was ridiculed. I was treated badly by my peers and my colleagues and the head of my laboratory came to me smiling sheepishly, and he put a book on my desk and said 'Danny, why don't you read this and see that it is impossible what you are saying?'

'I said, 'I don't need to read it... I know it's impossible, but here it is.'

Shechtman's findings were so controversial that he was ultimately asked to leave his research group at the US National Institute of Standards and Technology.

It was only in November 1984 that Shechtman was able to find a journal — Physical Review Letters — where with a trio of other researchers he could publish his data.

'The article went off like a bomb among crystallographers,' the Nobel jury said.

'It questioned the most fundamental truth of their science: that all crystals consist of repeating, periodic patterns.'

Quasicrystals have been found in the lab and some have been discovered to occur naturally in minerals.

Their closely-packed structure helps them strengthen materials, with potential outlets in consumer products such as frying pans and machines such as diesel engines which experience high heat and mechanical stress.

The new laureate will receive the 10 million Swedish kronor ($1.48 million, 1.08 million euros) prize at a formal ceremony in Stockholm on December 10, the anniversary of the death of prize creator Alfred Nobel.

On Tuesday, Saul Perlmutter and Adam Riess of the United States and US-Australian Brian Schmidt shared the Nobel Physics Prize for discovering that the expansion of the Universe is accelerating, a finding that implies the cosmos will end in frozen nothingness.

The Nobel medicine award was attributed on Monday to Bruce Beutler of the United States, Luxembourg-born Frenchman Jules Hoffmann and Ralph Steinman for insights into immunology.