Jeff Urbach ABSTRACT We usually describe the properties of materials by categorizing them as solid, liquids, or gases, but lots of stuff doesn’t fit neatly in into any one category. Toothpaste, yogurt, peanut butter, and shaving cream are familiar examples of materials that can hold their shape like a solid, but flow like a liquid … Continue reading Shear thickening fluids: what’s going on in there?→