Grain Power!
Ferroelectric materials generate electric fields that move charges around, just as a bar magnet produces a magnetic field that moves magnets around. Ferroelectric materials can be used for data storage to make electronics more energy efficient, but they don’t always play well with the silicon technology used in devices like phones and computers. HAFNIA TO THE RESCUE! Click to learn more.
Electric Crystals and their Broken Symmetries
Students learn how some crystals produce electricity when squeezed! This lesson is part 4 of a 4-part student-driven, lecture-free series, in which students will do card sorts, build hands-on models, solve engineering design puzzles, and more!
What is Viscosity?
The term may be unfamiliar, but we all have a sense for viscosity. We often think of it colloquially as the “thickness” of a fluid. It’s the property that makes honey pour so differently from water. Fluid dynamicists – scientists and engineers who study how liquids and gases move – tend to think of viscosity in terms of a fluid’s resistance to flowing or changing its shape.