Das a small boot! This small submarine is 4 millimeters long and about 65 millimeters in diameter. Freaking small. This photo was magnified 17x. Precursors to these little dudes being injected into your body, preprogrammed, to fight viruses? Let’s hope so (and hope that Putin doesn’t shift his attention to nanotech).
Yesterday’s NanoPhoto of the Day answer: A cross section of a human capillary. The red discs shown are red blood cells. Very cool! All photos for NanoPhoto of the Day are from the amazing Eye of Science web site.