Aberystwyth Uni  @AberUni
How sound is a non-round pound? @AberUni Professor Simon Cox looks into the geometry of the new coin https://t.co/FEtb97S1O9 
Aberystwyth Uni  @AberUni
As @RoyalMintUK introduces #newpoundcoin Professor Simon Cox @aberuni discuses the geometry of coin design https://t.co/zIlcld2wse