When a droplet of water hits the pan, he said, it should sizzle, not spurt.

WSJ: Stephen Stryjewski's Calas (Rice Fritters) With Apple, Currant and Celery Salad | Slow Food Fast

All this suggests that the smallest possible droplet of water must be made up of at least six molecules arranged as a cage.

ECONOMIST: Molecular bonding

The researchers were able to make every droplet of oil or water placed on the material to run or stop in its tracks (a response which the team describes as "pinning"), simply by flexing the material or letting it relax.

BBC: New material can halt runny liquids on demand

Water and fat -- those are the two primary building blocks Oxford University researchers have used to 3D print the droplet you see above.

ENGADGET: Oxford University researchers create new 3D printed 'soft material' that could replace human tissue