Hacked Gadgets Forum

September 29, 2006

Shaken Cornstarch Grows Fingers

at 10:30 am. Filed under Cool Gadgets, Funny Hacks


I guess I lead a sheltered life since I didn’t know about the “cornstarch reaction“. Make sure you watch the end of the first video. The last video is cute…

“Due to its dilatant behavior, cornstarch suspended in water is not a good analog for modeling a Newtonian lower crust. However, workers have suggested that crystal-rich magmas behave in a dilatant manner (Smith, 1997; 2000), as evidenced by brittle fractures in igneous intrusions that are cross-cut by fluid flow of the same material. This implies that a cornstarch suspension could be a useful analog for modeling deformation and flow in crystal-rich magmas, and that this type of flow may be important in the modeling of all igneous intrusions as crystal content increases with time.”