You're reading: Arty Maths Armadillo Vault held together only by friction By Christian Lawson-Perfect. Posted June 9, 2016 in Arty Maths More information at Wired. via math-fun. Leave a Reply Click here to cancel reply. Name Mail (will not be published) Website $\LaTeX$: You can use LaTeX in your comments. e.g. $ e^{\pi i} $ for inline maths; \[ e^{\pi i} \] for display-mode (on its own line) maths. XHTML: You can use these tags: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>