IS Aperture: f/2.7 Exposure: 1/60th Focal Length: 36mm 10th August 2012 #science #peptides #research biocanvas : A 40-times magnified view of the trachea from a silkworm . Image by Ian C. Walker. 9th August 2012 Reblogged From biocanvas Notes: 393 biocanvas : Saccharin , an artifical sweetener first produced in 1878,