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Five things to do today - 20 January

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Chalk 3D - thewholeearth.pdf - Nomadic urban living - holographic meetings - virtual bubblewrap

Chalk 3D
Mighty Optical Illusions has a raft of the best 3D chalk-on-pavement drawings, the most architectural of which are by Felice Varini. For an insight into how he does it, click here.

The hippy architect's bible, 1968's The Whole Earth Catalog, is available for sale as a PDF file. Download it to discover why your crazy-cool aunt went to Arizona to cut up steel panels.

Walking House
Courtesy of Danish group N55, who describe their Walking House project as 'a modular dwelling system that enables people to live a peaceful nomadic life, moving slowly through the landscape or cityscape with minimal impact on the environment. It collects energy from its surroundings using solar cells and small windmills.'

Holographic meetings
Fed up with conference calls? Can't see the whites of their eyes? Very soon you will be able to see the person across the table in, say, Abu Dhabi, full size and in three dimensions courtesy of hologram technology – better than that old illusionists' trick Pepper's Ghost.

Virtual bubblewrap
We all know the pleasures of bubblewrap popping. Now an enterprising Japanese firm has brought out a little plastic block covered with 'bubbles' that you press and you are said to get that bubblewrap popping sound (though the video on YouTube wasn't all that convincing). It's called Puchipuchi and, if you're fast, you can buy one on eBay for around four quid.

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