Pentel Graph Gear 500 Automatic Drafting Pencil with Lead and Mini Eraser, 0.5 mm (PG525LEBP),Black,1 Pack w/ Lead & Eraser 1931 ratings View Product Buy it on Amazon More info 4 ...

An original design drawing for the Concorde aircraft will be among the lots on offer when Bonhams returns to the RAF Museum in Hendon for its annual sale on Monday 29 April. The 135cm x 76cm graphite ...

Herein, a hand-drawing paper-based bipolar electrode (BPE) electrochemiluminescence (ECL) platform for M.SssI methyltransferase (M.SssI MTase) assay was proposed via employing high electrocatalytic Pt ...