pee

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A new portable machine uses a mixture of sand, bacteria and urine to create an eco-friendly concrete-like material that can be used to make bricks to build houses.

The machine, called 'Dupe', uses a mixture of sand, bacteria and urine to create a material called biostone.
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Scientists in China say they have successfully grown a human tooth using stem cells taken from urine. Researchers say the technique could one day be used as a way to replace teeth lost through aging and poor dental hygiene, with the added bonus that urine is deemed a less controversial source of stem cells than human embryos.
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