Reciprocity Whenever human activities incorporate machines or rigidly prescribed procedures, the modes of human interaction change. In general, technical arrangements reduce or eliminate reciprocity. Reciprocity is some manner of interactive give and take, a genuine communication among interacting parties. Ursula M. Franklin, The Real World of Technology reciprocity
Anatomical Drawings of Staircase Spaces A Book by Tomoyuki Tanaka ShibuyaDetailPlatformsSpiralDescent+3 More Back to the Drawing BoardSection-perspective drawingKengo Kuma's sketches architecturedrawingtransportationart
Platforms Show image 0 Show image 1 Original by Tanaka, and my own digital tracing. Tablets have caught up