Scientists have created a camera lens that is so small it is around the size of a grain of salt and could take higher-quality images of the insides of our bodies than current technology can. Today ...

The researchers used algorithms to take crisp images comparable to those taken by conventional cameras that are 500,000 times larger. Nano cameras design and comparison to the size of a finger.

The extremely small size could make the cameras a natural go-to for invasive medical procedures, but also appeal to security experts. View more Pictures of the Day . Image: Fraunhofer-Gesellschaft .