Something incredible, that’s what. You probably haven’t seen something like this before. Filling water balloons with colored water and popping them in front of a slow motion camera can be amazing. But what happens when you fill those water balloons with a non-newtonian fluid (water and corn starch) and shoot them with a golf ball!? Well…this.
First off, a non-newtonian fluid is something that acts as a solid or liquid depending on the strain rate/forces applied. So punching one makes it hard, but it can be poured, like into a water balloon for example. A simple version, like what these guys used, would be water mixed with corn starch. The video features a few tests on this substance using a chainsaw and bb gun, but the coolest by far is when they shoot it with a golf ball. The surface area of something big like a golf and the properties of the non-newtonian fluid lead to a spectacular explosion of texture and color. It’s like nothing we’ve ever seen. The closet thing I can think of to describe what it looks like is Cheetos. The fluid becomes hard from the impact but separates as the golf ball passes through. The dimples on the golf ball create an amazing texture on the watery cornstarch as it busts through.