Military's Oozing Chembot

iRobot's oozy ChemBot amazes and terrifies

"DARPA envisions the palm-size ChemBot as a mobile robot that can traverse soft terrain and navigate through small openings, such as tiny wall cracks, during reconnaissance and search-and-rescue missions. It gets around by way of a process called "jamming," in which material can transition between semiliquid and solid states with only a slight change in volume."

The Blob - The Five Blobs