University of Hawaii

Japan's I-400-class subs were so large that they could each carry and launch three Aichi M6A Seiran amphibious aircraft. Now, for the first time since it was scuttled at the end of World War II, one of the sunken subs' aircraft hangars has been photographed.

Optically controlled air bubbles in a saline solution could act as microrobot, and assemble microstructures.