This article introduces the manufacture and application methods of the projection experimenter of "Closed Circuit Ohm Law".

Firstly, traditional horizontal projection for coarse location is used, and then vertical projection is proposed to remove the pseudo-plate region according to the law of plate.

Rabin's research concentrated on the law of small Numbers, lagging and self-control, risk aversion and valuation for gain and loss, as well as projection bias and irrational choice.