Movies taken through a microscope will be accepted as a new category in the 37th Annual Nikon Small World Photomicrography Competition sponsored by Nikon Instruments Inc. based in Melville, N.Y. Titled “Small World in Motion,” this class of entries encompasses any movie or digital time-lapse photography taken with a microscope. The movies will be judged as a separate category. “Small World in Motion” will honor the technical expertise of bio- and industrial-focused scientists who use digital time-lapse photography to study areas such as the movement of microscopic organisms. Movies will be judged on the merit of being visually outstanding as well as depicting the intersection of science and art. The deadline for entering the contest is April 30.