Aug 264 min readCaltrain's Journey From Diesel to Electric: A 70% Improvement in Ride SmoothnessSummary Vibration Analysis Revisited: Four years ago, I conducted a vibration analysis on the old diesel Caltrain cars . Recently, I...
Jan 8, 20206 min readCaltrain Vibration and Volatility AnalysisFrom Jan, 2020 Updated analysis in 2024 with the new electric trains: https://www.nathanblack.me/post/from-diesel-to-electric-a-70-improv...
May 13, 201911 min readVolatility and Flowing with ChangeObjective: Starting from first principles of uncertainty, why one should invest with a long volatility profile amid increasing systemic...
