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Page last updated at 09:03 GMT, Wednesday, 31 March 2010 10:03 UK

Tech Know: 3D computer printing and DNA extraction kits

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LJ Rich meets the people who use a 3D printing machine to build ornaments and jewellery at Newcastle's Maker Faire.

She also finds out why a scientist wants people to extract DNA from food with household materials they can find at home.

READ MORE: Life hacking

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