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Scientists create the world’s smallest ‘snowman’


 

Scientists create the world’s smallest ‘snowman’

Scientists have created the world’s smallest ‘snowman’, measuring about a fifth of the width of a human hair.

 

Worlds smallest snowman: Scientists create the world's smallest 'snowman'

The snowman is made of two tiny tin beads, normally used to calibrate electron microscope lenses, which were welded together with platinum Photo: Dr Cox / National Physical Laboratory

Experts at the National Physical Laboratory in West London made the miniature figure which is just 0.01mm across.

However, far from the thrill of rolling balls of snow around a field to build their masterpiece, it was assembled using tools designed for manipulating nanoparticles.

The snowman is made of two tiny tin beads, normally used to calibrate electron microscope lenses, which were welded together with platinum.

A focused ion beam was used to carve the snowman’s eyes and smile, and to deposit a tiny blob of platinum for the nose

It was put together by Dr David Cox, a member of the Quantum Detection group at the laboratory, who also took the picture.

However, Britons searching for the real thing will have to head for the northern hills of Scotland, where forecasters say there is a chance of snow falling over the weekend.

Meanwhile, the Alps have seen heavy snow falls in the past week allowing the ski season to get under way at many resorts. Andermatt in Switzerland has received nearly 40 ins (100cm) of fresh snow.

The NPL is one of Britain’s leading science facilities and research centres. It is a world-leading centre of excellence in developing and applying the most accurate measurement standards.

www.telegraph.co.uk

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December 4, 2009 - Posted by | Blogroll, Entertainement, nature, Weird

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