50 years of silence

I remember the first time I got boomed. I had traveled with my colleague, Matt, to NASA Langley Research Center to get educated on sonic booms. The NASA aeronautics folks were, as ever, welcoming and generous with their time. They escorted us to a room that contained the sonic boom simulator.The simulator is a small chamber made of 20-cm thick concrete blocks. From the outside of the door, which housed four subwoofers and four midrange speakers, protruded wires that supplied power and signal to ...