Rodney_gold
R.I.P. 5 June 2018
http://www.gizmag.com/acoustic-metasurface-sound-absorption/41935/
and
http://scitation.aip.org/content/aip/journal/apl/108/6/10.1063/1.4941338
im going to build a few with my CnC machines
and
http://scitation.aip.org/content/aip/journal/apl/108/6/10.1063/1.4941338
im going to build a few with my CnC machines
