Today's news: UK growth up - $20 open source water filter invented - Facebook hits 1bn in one day - 3D drug Printing confirmed.

Here's a roundup of todays big stories.

UK Growth Increases this Quarter.

UK growth is up, surprising analysts and spokespeople as the news was announced. Overall quarterly growth rate was confirmed to be 0.7 per cent. 

Facebook hits 1 billion in one day. 

Facebook revealed that more than 1 billion people used the site on Monday - the first time the the social networking platform has hit the milestone.

Zuckerberg said in a post on the site:

'm so proud of our community for the progress we've made. Our community stands for giving every person a voice, for promoting understanding and for including everyone in the opportunities of our modern world.

 $20 open source water filter invented.

A Texas teenager, 18-year-old Perry Alagappan, has created a water purifier to tackle toxic e-waste pollution. Revealed at World Water Week, his groundbreaking graphene heavy-metal filter, which he will keep open-source, tackles the dangerous materials discharged in the manufacturing of consumer electronics, including laptops and mobiles.

3D drug Printing confirmed.

That's right, it's here. 3D printed medication, tailored to individual needs has been approved from the US food & drugs administration body FDA. The man behind it, Lee Cronin who is Professor of Chemistry at Glasgow University, said:

The really cool bit is the idea that we want to have a universal set of inks that we put out with the printer and you download the blueprint, the organic chemistry for that molecule, and you make it in the device. And so you can make your molecule in the printer using this software.

Move over Dolly the sheep...