All posts by Alan Petrillo
Building a Solid Foundation for Understanding Seismic Waves
April 22, 2021
In 1906, there was the California earthquake. In 1908, there was the Lawson Report. In 1910, Harry Fielding Reid proposed the elastic rebound theory. Continue on a deep dive into seismology…
A Quiet Revolution: Analyzing Electric Motor Noise via Simulation
March 2, 2021
The sound we hear from electric-powered machines is a multiphysics phenomenon: A motor’s electromagnetic activity sends vibrations through both the machine and the surrounding air.
Happy Birthday, Claude-Louis Navier
February 10, 2021
When you hear the name Navier, you probably think of fluid flow or the Navier–Stokes equations. But did you know that Claude-Louis Navier worked as a bridge designer and civil engineer?
Happy Birthday, Friedrich Paschen
January 22, 2021
Friedrich Paschen dedicated his life to experimentation. Today, we use Paschen’s law to understand how electric current flows through gas.