Very cool! Any more detailed information about its construction? I bet they would also be interesting to a different audience - as toy. Edit: Found this http:/

Very cool! Any more detailed information about its construction? I bet they would also be interesting to a different audience - as toy. Edit: Found this http://arxiv.org/ftp/arxiv/papers/1403/1403.1211.pdf http://arxiv.org/ftp/arxiv/papers/1403/1403.1211.pdf