I’m not sure I trust the results of my little experiment. I was getting “weak” satellite signals. In any event, the “peak” speed on my GPS read 120 MPH. It didn’t seem like we were going 120 MPH, but then again, how would I really know

I frequently take the high-speed Acela train between Washington, D.C. and New York. The train makes the trip in 2 hours and 50 minutes, and I’ve frequently wondered what speeds the train reaches. It’s easy to calculate the average speed, assuming a distance of 200 miles: just over 70 MPH. But I want to know…