Dry-eye Drops for Your Camera

Researchers in Singapore recently unveiled a zoom lens that uses a drop of liquid as opposed to lenses that move back and forth to focus. The liquid acts like a contact lens in your eye, and by applying pressure on it the drop changes shape to get things into focus. This means a stronger (x10 as opposed to the x2 usually found in most high-end phonecams and x4-x5 in most mid-range digital cameras), smaller, and less battery-using zoom lens for digital cameras and cellphones.