Pace v. i. [imp. & p. p. {Paced} p. pr. & vb. n. {Pacing}]
1. To go; to walk; specifically, to move with regular or
measured steps.
2. To walk up and down nervously, as to expend nervous energy.

A home monitoring system that measures and documents nervous pacing activity. The result is a physical visualization of the amount of pacing, for personal use in a domestic environment. The purpose is to visualize the distance traversed while engaged in measured, contemplative walking.

The monitoring system takes the form of a track, specifically scaled and designed for pacing on. The track is elevated from the ground level and balances on a subtle see-saw. Sensors at each end of the track keep tabs on the amount of laps. The distance paced is calculated and transmitted to a wall-mounted unit which dispenses an equivalent length of red yarn. The yard accumulates on the floor, anywhere you choose to install it. Mine is installed by the doorway.

Part of a series called "Measures of Discontent", from my MFA work at UCLA's department of Design and Media Arts
instructables.com/id/Pacing-Track/ (less info)