The Telegraph: Invisibility cloak enters the real world

Source: http://www.telegraph.co.uk/science/science-news/8296338/Invisibility-cloak-enters-the-real-world.html
Found on:  http://www.activistpost.com/2011/02/invisibility-cloak-enters-real-world.html

Richard Alleyne
The Telegraph
February 2, 2011

In the past researchers have only been able to “cloak” microscopic objects using extremely complicated physics and so-called meta-materials made on a tiny scale.

But a new study at the University of Birmingham has taken a massive step forward by making a paper clip invisible – an object thousands of times bigger than previous experiments.

The research works by using a naturally forming crystal called calcite which has extraordinary light bending abilities.

By placing the crystals over an object it “bounces” light around it rendering it totally invisible to the naked eye.

Dr Shuang Zhang, a physicist and lead investigator from the University of Birmingham, said: ‘‘This is a huge step forward as, for the first time, the cloaking area is rendered at a size that is big enough for the observer to ‘see’ the invisible object with the naked eye.

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