Almost at Union Station on the train to the District; MM at Silver Spring tonight.  Feeling mathematically inspired and productive in the great weather and scenery.  

I’m thinking about acceleration kinematic and technological and some KE/Work related stuff that I’ve shamefully still not yet managed to fully nail down and internalize (which I wish to express but this post time-window until I lose access won’t contain it).  

Grain elevators, trusses, swingset parks, high-voltage lines and step-down substations, spraypaint declarations of love and ownership on factory walls and concrete embankments.  

10-meter parabolic reflectors next to rowhouses and the rocky islet in the middle of a stream where someone(s) made stacks of stones 10 and 15 high. Just passed the great temple of the square and compass in Alexandria.  Rain, steam, speed, diesel and induction.