11.   Following specifications from the computer, the machine moves back and forth inside a refrigerated container, squeezing out water droplets where needed.

12.   For example, plane manufacturers must prove that their aircraft can fly in icy conditions when water droplets of a certain size are present.

13.   For much of the year, structures are coated with ice as tiny water droplets from the clouds that often shroud the summit, freeze on contact.

14.   Fog forms when air near the ground is cooled enough for the water vapor in the atmosphere to condense into visible water droplets.

15.   Hail forms as wind blows water droplets high inside a thunderstorm cloud and the drops freeze, then fall.

16.   He plans to use the centrifugal force generated by the rotating blades to pump water droplets into the atmosphere.

17.   Humid air can contain numerous suspended water droplets that adhere to the tiny solid particles and thicken the haze.

18.   In a thunderstorm, the particles are usually tiny slivers of ice, water droplets, or pieces of hail.

19.   Investigators have concluded that the plane, as it flew its holding pattern, encountered a region of water droplets far larger than FAA certification rules anticipated.

20.   In turbulent winds inside these clouds, water droplets and ice crystals collide.