1. Joined
    06 Mar '12
    09 Apr '14 07:501 edit
    at the top picture of:


    he is holding a layer of material (of graphene in this case ) just one-atom thick and about 1cm by 1cm in 2D area, with tweezers and that layer, despite being only one atom thick, is clearly visible with the unaided eye -I find that quite remarkable.